{"id":19749,"date":"2021-08-13T11:20:16","date_gmt":"2021-08-13T09:20:16","guid":{"rendered":"https:\/\/www.inventer.de\/heat-recovery-in-ventilation\/"},"modified":"2021-09-30T13:40:34","modified_gmt":"2021-09-30T11:40:34","slug":"heat-recovery-in-ventilation","status":"publish","type":"page","link":"https:\/\/www.inventer.eu\/know-how\/ventilation-basics\/heat-recovery-in-ventilation\/","title":{"rendered":"Heat recovery in ventilation"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"19749\" class=\"elementor elementor-19749 elementor-13418\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-72b36833 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"72b36833\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;bf37420&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-47acdb7d animated-fast elementor-invisible\" data-id=\"47acdb7d\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bc8fdb4 elementor-align-left elementor-widget elementor-widget-raven-breadcrumbs\" data-id=\"bc8fdb4\" data-element_type=\"widget\" data-widget_type=\"raven-breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"raven-breadcrumbs raven-breadcrumbs-default\"><div class=\"breadcrumb\">\t\t\t\t<div class=\"breadcrumb-item active\" aria-current=\"page\"><span>Home<\/span><\/div>\n\n\t\t\t\t<\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e7bf84 animated-fast elementor-invisible elementor-widget elementor-widget-jet-headline\" data-id=\"0e7bf84\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"jet-headline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"jet-headline jet-headline--direction-vertical\"><span class=\"jet-headline__part jet-headline__first\"><span class=\"jet-headline__label\">Heat recovery in ventilation<\/span><\/span><span class=\"jet-headline__part jet-headline__second\"><span class=\"jet-headline__label\">Methods of heat recovery in ventilation<\/span><\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-232b12eb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"232b12eb\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;e8968ff&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-79c74e32 elementor-invisible\" data-id=\"79c74e32\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4915efb1 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"4915efb1\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Modern houses are built energy-efficiently to protect the environment and save heating costs. When it comes to ventilation, architects and planners are increasingly turning to mechanical or fan-assisted ventilation with heat recovery. Not only does it provide fresh air in the living room and thus increase living comfort, it also provides DIN-compliant ventilation to prevent mold. Especially with regard to the energy saving potential in building, which is given clear guidelines by the Energy Saving Ordinance (EnEV), the importance of controlled living space ventilation with heat recovery comes to the fore. A heat exchanger in a ventilation system can recover up to 90% of the thermal energy. This depends on the device structure and the method of heat recovery. In the following sections you will find out which methods are available for heat recovery in ventilation and how the principle of the heat exchanger works.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-141e21a4 animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"141e21a4\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:800}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_119605065_klein-1024x683.jpg\" class=\"elementor-animation-grow attachment-large size-large wp-image-8725\" alt=\"L\u00fcftungsanlage mit W\u00e4rmer\u00fcckgewinnung f\u00fcr mehr Wohnkomfort\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_119605065_klein-1024x683.jpg 1024w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_119605065_klein-300x200.jpg 300w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_119605065_klein-768x512.jpg 768w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_119605065_klein.jpg 1382w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-1fd2c9de animated-fast elementor-invisible\" data-id=\"1fd2c9de\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:600}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3234c0c5 elementor-widget elementor-widget-heading\" data-id=\"3234c0c5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Counselor:<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-188c9bfa elementor-align-left iv_contents animated-fast elementor-widget__width-auto elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-invisible elementor-widget elementor-widget-icon-list\" data-id=\"188c9bfa\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Bedeutung\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Significance of heat recovery for the energetic evaluation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Energieeffizient\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Build energy-efficient<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Lueftungskonzept\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Ventilation concept for ventilation with heat recovery<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Ueberblick\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Overview of heat exchangers in ventilation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Rekuperative\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Recuperative heat recovery in ventilation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Plattenwaermetauscher\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Plate heat exchanger for mechanical ventilation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Rohrbuendelwaermetauscher\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Tube bundle heat exchanger for heat recovery<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Waermerueckgewinnung\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Recuperative heat recovery with central ventilation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Regenerative\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Regenerative heat recovery with ventilation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Vorteile\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Heat recovery in ventilation through solids<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Rotationswaermetauscher\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Rotary heat exchanger in industrial ventilation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#Fazit\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 512 512\" style=\"enable-background:new 0 0 512 512;\" xml:space=\"preserve\"><g>\t<g>\t\t<path fill=\"#0068b4\" d=\"M506.1,241.8C506.1,241.8,506.1,241.8,506.1,241.8l-104.5-104c-7.8-7.8-20.5-7.8-28.3,0.1    c-7.8,7.8-7.8,20.5,0.1,28.3l70.2,69.8H20c-11,0-20,9-20,20c0,11,9,20,20,20h423.6l-70.2,69.8c-7.8,7.8-7.9,20.5-0.1,28.3    c7.8,7.8,20.5,7.9,28.3,0.1l104.5-104c0,0,0,0,0,0C514,262.3,513.9,249.6,506.1,241.8z\"><\/path>\t<\/g><\/g><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Conclusion<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3ac7707c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3ac7707c\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;db92281&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9ea66b2 animated-fast elementor-invisible\" data-id=\"9ea66b2\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-311457c animated-fast elementor-invisible elementor-widget elementor-widget-jet-headline\" data-id=\"311457c\" data-element_type=\"widget\" id=\"Bedeutung\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"jet-headline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"jet-headline jet-headline--direction-vertical\"><span class=\"jet-headline__part jet-headline__first\"><span class=\"jet-headline__label\">Significance of heat recovery in ventilation for the energetic evaluation<\/span><\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-343422c7 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"343422c7\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The requirements for house construction are growing steadily. Buildings should be constructed as tightly as possible in order to store the energy in them. The Energy Saving Ordinance (EnEV) has defined special guidelines that must be observed when building a house. In the following we would like to give you a brief overview:<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-51d2267d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"51d2267d\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;7b09321&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-4cd4295d animated-fast elementor-invisible\" data-id=\"4cd4295d\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-39b98757 elementor-widget elementor-widget-heading\" data-id=\"39b98757\" data-element_type=\"widget\" id=\"Energieeffizient\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Energy-efficient building - guidelines for heat recovery<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-794e0e7c animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"794e0e7c\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Tightly constructed building envelopes, reinforced roof insulation and multiple-glazed windows are intended to reduce the primary energy requirement of the house. On the one hand, this is intended to achieve long-term goals in the federal government&#8217;s energy and climate protection policy. On the other hand, they help homeowners to keep their property energetically efficient and save heating costs (you can read more about the EnEV in our guide to the Energy Saving Ordinance).<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-258fba2e animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"258fba2e\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:1000}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/elementor\/thumbs\/Uebersicht-der-Massnahmen-zur-energetischen-Sanierung-1-pvronihrdnc94hwappr7cv64l97exz4po31a4c7of8.png\" title=\"Ma\u00dfnahmen f\u00fcr energieeffizientes Bauen\" alt=\"Ma\u00dfnahmen f\u00fcr energieeffizientes Bauen - Richtlinien f\u00fcr W\u00e4rmer\u00fcckgewinnung\" class=\"elementor-animation-rotate\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a4ed0fb animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"1a4ed0fb\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>But where energy is saved by the compact design, problems arise again: The air can no longer circulate naturally (through cracks in the joints or through a permeable building structure). Stale air enriched with moisture and pollutants (vapors from home textiles, furniture, etc.) ensures that the well-being and health of the residents as well as the building structure of the house are attacked. For this reason, the EnEV requires a minimum air change. How this can be achieved in detail is part of the ventilation standard DIN 1946-6, which is used as the basis for the ventilation concept. You will find an overview of the ventilation concept in the further course of the guide.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-34911b59 animated-fast elementor-invisible\" data-id=\"34911b59\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:400}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-26bfe41f animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"26bfe41f\" data-element_type=\"widget\" id=\"Lueftungskonzept\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Ventilation concept for ventilation with heat recovery<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2160e85b animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"2160e85b\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:800}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>In order to be legally on the safe side, a ventilation concept according to DIN 1946-6 is not only sensible for specialist planners, but also mandatory according to the current energy saving ordinance.<br \/>\nThis applies to the construction of a new house as well as to existing residential buildings retrospectively, if in the course of a renovation<\/p>\n<p>more than a third of the windows replaced or<br \/>\nmore than a third of the roof area in single-family houses can be insulated.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d828802 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"6d828802\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:1200}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Ventilation with heat recovery can be designed for nominal ventilation in accordance with DIN 1946-6. This is the ventilation level that defines both hygienic standards for the health of the residents and ensures adequate moisture protection in order to protect the building fabric from mold in the long term. The design according to standard-compliant nominal ventilation becomes important when it comes to applying for funding from the KfW.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-69266c65 animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"69266c65\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:1000}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_57487947-web-2.jpg\" class=\"elementor-animation-grow attachment-large size-large wp-image-8722\" alt=\"L\u00fcftungskonzept f\u00fcr L\u00fcftung mit W\u00e4rmer\u00fcckgewinnung\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_57487947-web-2.jpg 1024w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_57487947-web-2-300x200.jpg 300w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_57487947-web-2-768x512.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2f454f7f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2f454f7f\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;569c7a0&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4bf9cebf animated-fast elementor-invisible\" data-id=\"4bf9cebf\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-74d5b41 elementor-widget elementor-widget-spacer\" data-id=\"74d5b41\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-973b30c animated-fast elementor-invisible elementor-widget elementor-widget-jet-headline\" data-id=\"973b30c\" data-element_type=\"widget\" id=\"Ueberblick\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"jet-headline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"jet-headline jet-headline--direction-vertical\"><span class=\"jet-headline__part jet-headline__first\"><span class=\"jet-headline__label\">Overview of heat exchangers in ventilation - methods of heat recovery<\/span><\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f37368b animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"1f37368b\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Basically, the principle of heat recovery works by transferring thermal energy of the exhaust air from the interior to the fresh air supplied from outside or by transferring it to a storage mass with subsequent release to the subsequent air flow. This means that less heating energy has to be used to keep the temperature in the interior constant (warm). This saves heating costs and also protects the environment. The heat recovery can be technically implemented in various ways. We roughly distinguish between two variants:<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5444370e animated-fast elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-invisible elementor-widget elementor-widget-icon-list\" data-id=\"5444370e\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-long-arrow-alt-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">recuperative heat recovery (lat. recuperare = to regain)<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-long-arrow-alt-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">regenerative heat recovery (lat.regeneratio = to generate again)<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2bd59422 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2bd59422\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;4a8274c&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2d4a6f28 animated-fast elementor-invisible\" data-id=\"2d4a6f28\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3723c3dd animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"3723c3dd\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:800}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"614\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_81189755-web.jpg\" class=\"elementor-animation-grow attachment-large size-large wp-image-8731\" alt=\"W\u00e4rmetauscher bei der L\u00fcftung - profitieren von einer kontrollierten Wohnrauml\u00fcftung\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_81189755-web.jpg 1024w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_81189755-web-300x180.jpg 300w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/AdobeStock_81189755-web-768x461.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-409eaf11 animated-fast elementor-invisible\" data-id=\"409eaf11\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap 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c-1,94.6,45.8,178.3,117.7,228.6l-0.2,111.3c-0.1,33.2,27,60.5,60.3,60.5l193.5,0.4c33.2,0.1,60.5-27,60.5-60.3l0.2-111.3 C893.1,874.8,940.1,792.3,940.3,698.6z\"><\/path><path class=\"st1\" d=\"M820.2,1196.6l-300.4-0.7c-18.4,0-33.3-15.1-33.3-33.4l0,0c0-18.4,15.1-33.3,33.4-33.3l300.3,0.7 c18.4,0,33.4,15.1,33.4,33.4v0C853.5,1181.6,838.5,1196.6,820.2,1196.6z\"><\/path><path class=\"st1\" d=\"M806.3,1294.6l-272.5-0.6c-16.6,0-30.2-15.1-30.2-33.4l0,0c0-18.4,13.7-33.3,30.3-33.3l272.4,0.6 c16.6,0,30.3,15.1,30.3,33.4v0C836.6,1279.6,822.9,1294.6,806.3,1294.6z\"><\/path><path class=\"st1\" d=\"M782.6,1326.4l-225-0.5c-16.1,0-29.4,13.1-29.4,29.3l0,8.1c0,16.1,13.1,29.4,29.3,29.4l6.1,0l204.9,0.4l14.1,0 c16.1,0,29.4-13.1,29.4-29.3l0-8.1C811.9,1339.6,798.7,1326.4,782.6,1326.4z\"><\/path><path class=\"st2\" d=\"M563.4,1419.4c0,24.4,45.9,44.2,102.5,44.2c56.6,0,102.5-19.8,102.5-44.2c0-0.1,0-0.1,0-0.2l-204.9-0.4 C563.5,1418.9,563.4,1419.1,563.4,1419.4z\"><\/path><path class=\"st2\" d=\"M548.8,336.5l-17.4-47.4l23.7-8.7l17.4,47.4L548.8,336.5z M521,260.6l-17.4-47.4l23.7-8.7l17.4,47.4L521,260.6z  M493.2,184.8l-11.3-30.9l23.7-8.7l11.3,30.9L493.2,184.8z\"><\/path><path class=\"st2\" d=\"M460.9,397.2l-32.5-38.6l19.3-16.2l32.5,38.6L460.9,397.2z M408.9,335.3l-32.5-38.6l19.3-16.2l32.5,38.6 L408.9,335.3z M357,273.5l-32.5-38.6l19.3-16.2l32.5,38.6L357,273.5z M305,211.7l-17.8-21.2l19.3-16.2l17.8,21.2L305,211.7z\"><\/path><path class=\"st2\" d=\"M354,486.7l-43.7-25.3l12.6-21.9l43.7,25.3L354,486.7z M284,446.3l-43.7-25.3l12.6-21.9l43.7,25.3L284,446.3z  M214.1,405.9l-43.7-25.3l12.6-21.9l43.7,25.3L214.1,405.9z\"><\/path><path class=\"st2\" d=\"M310.7,623.8l-49.8-8.5l4.2-24.9l49.8,8.5L310.7,623.8z M231.1,610.3l-49.8-8.5l4.2-24.9l49.8,8.5L231.1,610.3z  M151.5,596.7l-49.8-8.5l4.2-24.9l49.8,8.5L151.5,596.7z M71.8,583.1L29.7,576l4.2-24.9l42.1,7.2L71.8,583.1z\"><\/path><path class=\"st2\" d=\"M109.7,788l-4.2-24.9l33.4-5.7l4.2,24.9L109.7,788z M172.9,777.2l-4.2-24.9l49.8-8.4l4.2,24.9L172.9,777.2z  M252.6,763.7l-4.2-24.9l49.8-8.4l4.2,24.9L252.6,763.7z\"><\/path><path class=\"st2\" d=\"M224.9,929.3l-12.5-21.9l43.8-25.1l12.5,21.9L224.9,929.3z M295,889.2l-12.5-21.9l43.8-25.1l12.5,21.9 L295,889.2z\"><\/path><path class=\"st2\" d=\"M685.6,326.3h-25.2v-50.5h25.2V326.3z M685.6,245.5h-25.2V195h25.2V245.5z M685.6,164.7h-25.2v-50.5h25.2V164.7 z M685.6,84h-25.2V36h25.2V84z\"><\/path><path class=\"st2\" d=\"M802.2,374.3l-23.7-8.7l17.4-47.4l23.7,8.7L802.2,374.3z M830,298.5l-23.7-8.7l17.4-47.4l23.7,8.7L830,298.5z  M857.7,222.7L834,214l11.3-30.9l23.7,8.7L857.7,222.7z\"><\/path><path class=\"st2\" d=\"M923,425.1L902.9,410l30.3-40.4l20.2,15.2L923,425.1z M971.6,360.6l-20.2-15.2l30.3-40.4l20.2,15.2L971.6,360.6 z M1020.1,296l-20.2-15.2l30.3-40.4l20.2,15.2L1020.1,296z M1068.6,231.4l-20.2-15.2l30.3-40.4l20.2,15.2L1068.6,231.4z  M1117.1,166.9l-20.2-15.2l15.4-20.6l20.2,15.2L1117.1,166.9z\"><\/path><path class=\"st2\" d=\"M1005.1,533.5l-13.6-21.3L1034,485l13.6,21.3L1005.1,533.5z M1073.1,489.9l-13.6-21.3l42.5-27.2l13.6,21.3 L1073.1,489.9z M1141.1,446.4l-13.6-21.3l42.5-27.2l13.6,21.3L1141.1,446.4z\"><\/path><path class=\"st2\" d=\"M1037.7,628.9l-4.2-24.9l49.8-8.3l4.2,24.9L1037.7,628.9z M1117.3,615.5l-4.2-24.9l49.8-8.3l4.2,24.9 L1117.3,615.5z M1197,602.2l-4.2-24.9l49.8-8.3l4.2,24.9L1197,602.2z M1276.7,588.9l-4.2-24.9l31.9-5.3l4.2,24.9L1276.7,588.9z\"><\/path><path class=\"st2\" d=\"M1205.9,788l-33.4-5.7l4.2-24.9l33.4,5.7L1205.9,788z M1142.7,777.2l-49.8-8.4l4.2-24.9l49.8,8.4L1142.7,777.2z  M1063.1,763.7l-49.8-8.4l4.2-24.9l49.8,8.4L1063.1,763.7z\"><\/path><path class=\"st2\" d=\"M1128.5,948l-22.2-12.9l12.7-21.8l22.2,12.9L1128.5,948z M1080.2,919.9l-43.6-25.4l12.7-21.8l43.6,25.4 L1080.2,919.9z M1010.3,879.3L966.7,854l12.7-21.8l43.6,25.4L1010.3,879.3z\"><\/path><path class=\"st2\" d=\"M632.3,1039.8l-27-1.5c0-0.7,4-73-0.2-150.5c-1.1-21.1-2.7-39.7-4.6-56.2c-18.9-0.9-37.4-8.4-54.2-22.1 c-14.9-12.2-27.7-28.9-35.9-47.2c-8.4-18.5-11.4-36.9-8.6-51.7c3.1-16.1,12.8-27.6,27.4-32.2c17.3-5.5,33.7-2.8,47.4,7.8 c18,13.9,31.4,41.1,41,82.9c2.3,10,4.3,20.8,6.1,32.4c1.4-0.5,2.8-1,4.3-1.6c13.3-5.4,25.5-11.4,36.5-17.5 c-8.9-33.2-6.9-69.3,8.3-89.8c13.1-17.6,33.9-21.7,57-11.3c23.8,10.8,27.1,28.2,26.9,37.6c-0.3,17.8-12.8,37.8-36,57.7 c-7,6-14.8,11.8-23.4,17.5c3.7,8.1,8.1,15.2,13.1,20.9c5,5.7,13.1,9.7,22.7,12.1c7.8-14.4,16.2-25.9,25-33.9 c12.7-11.6,35.9-21.7,55.6-18.4c11.3,1.9,20.1,7.9,25.3,17.4c9.1,16.5,3.8,34.4-13.8,46.7c-15.8,11-41.8,18-67.8,18 c-3,0-6-0.1-8.8-0.2c-17.4,40.3-30.8,100.1-30.8,165.4h-27c0-47.3,7-96.7,19.6-138.9c3.3-11.1,7-21.6,10.9-31.2 c-16.8-5.2-26.4-13.4-31.4-19.2c-6.2-7.2-11.6-15.6-16-24.7c-11.3,6.1-23.3,11.8-35.7,16.9c-3.6,1.5-7.2,2.7-10.9,3.7 c2.1,17.8,3.6,37.2,4.8,58C636.3,965.5,632.3,1039,632.3,1039.8z M805.8,801c-9.9,0-22.9,5.8-29.6,11.9c-4.5,4.1-9.1,9.7-13.5,16.6 c18-0.8,36-5.4,47-13.1c8.6-6,6.8-9.3,5.6-11.5c-0.8-1.5-2.2-3.1-6.1-3.7C808.1,801.1,806.9,801,805.8,801z M546.3,702.5 c-2.8,0-5.7,0.5-8.9,1.5c-3.4,1.1-7.5,3.4-9.1,11.5c-3.5,18.5,9.7,52.3,35.1,73c8.3,6.8,19.7,13.5,33.4,15.5 c-10.5-65.8-26.5-88.7-36.7-96.6C555.7,704.1,551.3,702.5,546.3,702.5z M705.8,702.5c-6.9,0-9.9,4-11.5,6.1 c-7.1,9.6-9.9,28.4-7.3,49.2c0.4,3.1,0.9,6.2,1.5,9.3c25.9-18.4,40.8-36.9,41-48.8c0-2,0.1-7.4-11-12.5 C713.2,703.4,709.1,702.5,705.8,702.5z\"><\/path><path class=\"st3\" d=\"M820.6,576c-5.2,0-10.3-2.7-13.1-7.6C770.2,502.6,686.1,500,685.3,500c-8.3-0.2-14.9-7-14.7-15.3 c0.2-8.3,7-14.9,15.3-14.7c1,0,25.9,0.7,56.3,11.1c40.8,14,72.4,39,91.4,72.5c4.1,7.2,1.6,16.4-5.6,20.4 C825.6,575.4,823.1,576,820.6,576z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71af5d65 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"71af5d65\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:1000}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Recuperative heat exchangers are mainly used in practical applications in central ventilation systems. A characteristic feature is the separately conducted supply and exhaust air flow.<br \/>\nRegenerative heat recovery takes place through a short-term heat storage system, through which incoming and outgoing air flows alternately. This type of heat recovery is mainly used in decentralized ventilation systems.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a1fee27 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a1fee27\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;28834ed&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a3140d9 animated-fast elementor-invisible\" data-id=\"a3140d9\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cea3bec animated-fast elementor-invisible elementor-widget elementor-widget-jet-headline\" data-id=\"cea3bec\" data-element_type=\"widget\" id=\"Rekuperative\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"jet-headline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"jet-headline jet-headline--direction-vertical\"><span class=\"jet-headline__part jet-headline__first\"><span class=\"jet-headline__label\">Recuperative heat recovery in ventilation<\/span><\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10a66b8 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"10a66b8\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>When exhaust air and supply air flow past each other in separate ducts, we speak of recuperative heat recovery. The exchange of thermal energy takes place via so-called heat exchangers. These can occur in a tube bundle or a plate shape and usually consist of particularly conductive metal such as aluminum or a special plastic. A special feature of the heat recovery via heat exchangers in ventilation is that the air flows do not come into contact with each other and therefore there can be no mixing of any kind. Odors or other solid particles are hardly or not at all transmitted. Ventilation with a heat exchanger is usually used where constant high air volume flows are required. The recuperative heat recovery method is mainly used in the central systems.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d2292ec elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d2292ec\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;a370a19&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-459bf6d2\" data-id=\"459bf6d2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4736bbbe animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"4736bbbe\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Recuperative heat exchangers for ventilation:<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1e593c64 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1e593c64\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;13db605&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-731ae66a animated-fast elementor-invisible\" data-id=\"731ae66a\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0db843c animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"0db843c\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"567\" height=\"425\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/Referenz-Medebach-12.jpg\" class=\"elementor-animation-grow attachment-large size-large wp-image-8737\" alt=\"Hausbel\u00fcftung mit W\u00e4rmer\u00fcckgewinnung: Kreuzstromw\u00e4rmetauscher\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/Referenz-Medebach-12.jpg 567w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/Referenz-Medebach-12-300x225.jpg 300w\" sizes=\"(max-width: 567px) 100vw, 567px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30dd1aa6 animated-fast elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-invisible elementor-widget elementor-widget-icon-list\" data-id=\"30dd1aa6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Enthalpy heat exchanger<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Tube bundle heat exchanger<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-30fb436e animated-fast elementor-invisible\" data-id=\"30fb436e\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:600}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-19c6de6 animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"19c6de6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"567\" height=\"378\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/Referenz-Mistelbach-01.jpg\" class=\"elementor-animation-grow attachment-large size-large wp-image-8740\" alt=\"Hausbel\u00fcftung mit W\u00e4rmer\u00fcckgewinnung: Kreuzgegenstromw\u00e4rmetauscher\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/Referenz-Mistelbach-01.jpg 567w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/Referenz-Mistelbach-01-300x200.jpg 300w\" sizes=\"(max-width: 567px) 100vw, 567px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a797124 elementor-align-left animated-fast elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-invisible elementor-widget elementor-widget-icon-list\" data-id=\"7a797124\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:800}\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Cross-flow heat exchanger<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Counterflow heat exchanger<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5e2b66e3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e2b66e3\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;8a0d0b3&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1b9abed3 elementor-invisible\" data-id=\"1b9abed3\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7f3ac880 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"7f3ac880\" data-element_type=\"widget\" id=\"Plattenwaermetauscher\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Plate heat exchanger for mechanical ventilation with heat recovery<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-358598b6 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"358598b6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The plate heat exchanger is mainly used in the central ventilation systems. Here, several thin aluminum plates or foils made of special plastic form the partition walls for the air flows. Warm exhaust air and fresh (cold) outside air flow through these spaces using the co-current principle, i.e. in the same direction, in the cross-flow principle, at right angles or in the counter-flow principle, i.e. in opposite directions past each other. The energy is transferred from the air with a high energy level (room air) to the heat exchanger and from there back to the outside air, which has a lower energy level.<br \/>\nWith the cross-countercurrent principle, both air flows are crossed and guided past each other in opposite directions. The contact time during the heat transfer is extended, which further increases the temperature efficiency and the efficiency of the heat recovery compared to the cross-flow principle.<br \/>\nThe geometry of the heat exchanger, the material, the air volume flow, the temperature difference, the size of the heat exchanger and the flow time also have an impact on the degree of heat recovery in plate heat exchangers.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27b5bcf2 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"27b5bcf2\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The following applies:<\/p>\n<p>The faster the air exchange, the less efficient the heat recovery.<br \/>\nCounter-flow heat exchangers have a higher heat transfer than cross-flow heat exchangers with the same area.<br \/>\nWith special constructions, such as a triangular or square duct construction, a larger heat transfer surface is created with the same construction volume<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-69196d82 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"69196d82\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:800}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Attention humidity recovery: A humidity recovery does not exist automatically with conventional heat exchangers. The temperature differences can often lead to larger amounts of condensate. This once again requires the installation of a corresponding pipe for the process, which is reflected in the installation effort and costs.<br \/>\nThe enthalpy heat exchanger was specially developed for moisture recovery during ventilation. In contrast to conventional plate heat exchangers, a membrane separates the supply and exhaust air flow. Due to the osmosis principle, this membrane can release a large part of the moisture from the (warm) exhaust air to the dry and cold supply air. Since the moisture recovery in the enthalpy heat exchanger cannot be regulated, it is mainly suitable for larger residential buildings with little occupancy or particularly little humidity.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-716913d5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"716913d5\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;69863ab&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4ced673a elementor-invisible\" data-id=\"4ced673a\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2c8df85e animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"2c8df85e\" data-element_type=\"widget\" id=\"Rohrbuendelwaermetauscher\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Tube bundle heat exchanger for heat recovery<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2e36fba elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2e36fba\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;9cdc70f&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-203eda41 elementor-invisible\" data-id=\"203eda41\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6987e9f2 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"6987e9f2\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The tube bundle heat exchanger is also one of the recuperative methods of transferring thermal energy, as the two air flows &#8211; warm and cold, are separated from each other and the heat is transferred via the tube wall. The recuperator consists of a large number of tubes with a small diameter, which are arranged in a hollow cylinder made of sheet steel. In the simplest case of the tube bundle heat exchanger, there is only one small tube in a large one. Warm air is drawn in via the larger one, while the cold air that is passed through the smaller pipe is heated indirectly via the partition. The principle of heat recovery through the tube bundle heat exchanger is now rarely used in living space ventilation.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-43084df5 elementor-invisible\" data-id=\"43084df5\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-53dc31b animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"53dc31b\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.inventer.de\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Lueftung_Rohrbuendel-Waermeuebertrager.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Rekuperative-Waermerueckgewinnung-Lueftung_Rohrbuendel-Waermeuebertrager\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6OTE0MCwidXJsIjoiaHR0cHM6XC9cL3d3dy5pbnZlbnRlci5ldVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDJcL1Jla3VwZXJhdGl2ZS1XYWVybWVydWVja2dld2lubnVuZy1MdWVmdHVuZ19Sb2hyYnVlbmRlbC1XYWVybWV1ZWJlcnRyYWdlci5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"794\" height=\"529\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Lueftung_Rohrbuendel-Waermeuebertrager.jpg\" class=\"elementor-animation-grow attachment-2048x2048 size-2048x2048 wp-image-9140\" alt=\"\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Lueftung_Rohrbuendel-Waermeuebertrager.jpg 794w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Lueftung_Rohrbuendel-Waermeuebertrager-300x200.jpg 300w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Lueftung_Rohrbuendel-Waermeuebertrager-768x512.jpg 768w\" sizes=\"(max-width: 794px) 100vw, 794px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-228ad39c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"228ad39c\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;a2f206e&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-15ffb548 elementor-invisible\" data-id=\"15ffb548\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-373704f3 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"373704f3\" data-element_type=\"widget\" id=\"Waermerueckgewinnung\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:800}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Recuperative heat recovery in the central system<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62edc2b5 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"62edc2b5\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The functional principle of recuperative heat recovery is mainly used in the central ventilation systems. The central system works via a single device that is connected to the entire house by a pipe system. The house is divided into supply and exhaust air rooms. Living and sleeping areas usually belong to the supply air rooms. Exhaust air rooms are the rooms in which moisture peaks can occur more frequently, such as the kitchen and bathroom.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-45692d53 animated-fast elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"45692d53\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;517ba88&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:600,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-553be705 elementor-invisible\" data-id=\"553be705\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-554c6e9c animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"554c6e9c\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"665\" height=\"722\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Zentrale-Lueftung_.jpg\" class=\"elementor-animation-shrink attachment-large size-large wp-image-9143\" alt=\"\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Zentrale-Lueftung_.jpg 665w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/Rekuperative-Waermerueckgewinnung-Zentrale-Lueftung_-276x300.jpg 276w\" sizes=\"(max-width: 665px) 100vw, 665px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7b306f88 elementor-invisible\" data-id=\"7b306f88\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3f08b00a elementor-widget elementor-widget-text-editor\" data-id=\"3f08b00a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Used air is sucked in via the exhaust air space, reaches the plate heat exchanger of the central device via the pipe system and is then released to the outside as so-called &#8220;exhaust air&#8221;. At the same time, fresh outside air is sucked in, gets back into the supply air pipes via the recuperator of the central system and is then transferred to the corresponding rooms. With the central system, a heat recovery rate of 70% to over 90% is possible.<br \/>\nAn upstream heating register can ensure that the thin aluminum or plastic plates in the heat exchanger are protected from frost even at low temperatures. This is operated with increased energy consumption, which can significantly increase the operating costs compared to decentralized ventilation systems. In summer, however, a summer bypass is often used to completely bypass the heat exchanger in the device.<br \/>\nThe additional energy requirement of the preheater can be avoided with an upstream geothermal heat exchanger. However, the installation is associated with high effort and costs and is also only suitable for large properties.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-178030d4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"178030d4\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;8d54bbb&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4eb8bb84 elementor-invisible\" data-id=\"4eb8bb84\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e9c25e4 animated-fast elementor-invisible elementor-widget elementor-widget-jet-headline\" data-id=\"e9c25e4\" data-element_type=\"widget\" id=\"Regenerative\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"jet-headline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"jet-headline jet-headline--direction-vertical\"><span class=\"jet-headline__part jet-headline__first\"><span class=\"jet-headline__label\">Regenerative heat recovery with ventilation<\/span><\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2bd58620 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"2bd58620\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>With regenerative heat recovery, thermal energy is temporarily &#8220;stored&#8221; in a solid or liquid body and released back to the colder supply air via this surface. The storage mass is alternately flowed through by cold and warm air. The intermediate storage device, also called a regenerator, can be fixed in the ventilation device as a solid body or it can be movable (rotary heat storage device). These regenerators are used for heat recovery especially in decentralized ventilation systems and in industrial ventilation.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a9e5cec elementor-widget__width-inherit animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"6a9e5cec\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"373\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/csm_Keramik-Waermetauscher-Lueftungsanlage-mit-Waermerueckgewinnung_8d08c5bf97.jpg\" class=\"elementor-animation-shrink attachment-2048x2048 size-2048x2048 wp-image-8749\" alt=\"Keramikw\u00e4rmespeicher - dezentrale L\u00fcftung mit W\u00e4rmer\u00fcckgewinnung\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/csm_Keramik-Waermetauscher-Lueftungsanlage-mit-Waermerueckgewinnung_8d08c5bf97.jpg 1024w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/csm_Keramik-Waermetauscher-Lueftungsanlage-mit-Waermerueckgewinnung_8d08c5bf97-300x109.jpg 300w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/csm_Keramik-Waermetauscher-Lueftungsanlage-mit-Waermerueckgewinnung_8d08c5bf97-768x280.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2bed7243 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2bed7243\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;215ad82&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7221bb6d elementor-invisible\" data-id=\"7221bb6d\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-64a2903a animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"64a2903a\" data-element_type=\"widget\" id=\"Festk\u00f6rper\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Heat recovery in ventilation through solids<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f2ce039 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"6f2ce039\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The heat accumulators in the decentralized ventilation systems usually consist of high-quality ceramic bodies. A reversing fan changes direction at intervals of 70 &#8211; 90 seconds and ensures the alternating direction of the air flow. In the exhaust mode, warm air flows through the solid, which charges the heat accumulator inside the fan. In the subsequent supply air interval, cold fresh air is drawn in from the outside, absorbs the temporarily stored heat and then flows preheated into the room. In particular, the honeycomb structure of a heat accumulator made of ceramic achieves a high level of efficiency in heat recovery. The transfer area is maximized by the honeycomb structure, which means that even more thermal energy can be temporarily stored.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-245b812e elementor-invisible\" data-id=\"245b812e\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4dccb8b5 animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"4dccb8b5\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"410\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/03\/csm_Grundriss-mit-Funktionsprinzip_Aufbau-dezentraler-Lueftungsanlage_9961124d12-500x410.jpg\" class=\"elementor-animation-shrink attachment-Image Size 500x500 size-Image Size 500x500 wp-image-8197\" alt=\"Die Funktion einer Wohnrauml\u00fcftung und das Prinzip dezentraler L\u00fcftungsanlagen von inVENTer\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-57efd5d3 animated-fast elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"57efd5d3\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;77ca256&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:800,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-139ef009 elementor-invisible\" data-id=\"139ef009\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6603c2a8 elementor-widget elementor-widget-text-editor\" data-id=\"6603c2a8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Regenerative heat recovery through ceramic heat storage is mainly used in living space ventilation with decentralized ventilation devices. The simple installation principle of the devices directly in the exterior walls, which also enables subsequent installation in the course of an energetic renovation, has made decentralized fans particularly popular on the residential ventilation market in recent years. In the meantime, this type of device has established itself and is even ahead of the central systems in terms of quantity.<br \/>\nYou can find out more advantages of the decentralized ventilation system for your building project in our guide.<\/p>\n<p>The high heat capacity of ceramics enables heat recovery from 80% to over 93%. The dirt-repellent surface is also suitable for hygienic ventilation requirements and is easy to clean. For this reason, the ceramic version has become the standard over the aluminum version.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-298e5802 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"298e5802\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;5761992&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5ba817f7 elementor-invisible\" data-id=\"5ba817f7\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3f395ac9 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"3f395ac9\" data-element_type=\"widget\" id=\"Vorteile\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Advantages over recuperative heat recovery from ventilation systems:<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f919bba animated-fast elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-invisible elementor-widget elementor-widget-icon-list\" data-id=\"4f919bba\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-long-arrow-alt-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">No frost protection necessary: \u200b\u200bproblem-free operation down to -20 degrees<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-long-arrow-alt-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Summer operation: heat barrier in the opposite direction<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-long-arrow-alt-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Hygienic and easy to clean<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-2f5e3185 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2f5e3185\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;567f365&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-9848e61\" data-id=\"9848e61\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-41625e10 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"41625e10\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Note: Decentralized fans with ceramic heat storage are also suitable for summer operation. The principle of heat recovery with a solid also works in the opposite temperature constellation. When the outside air is particularly warm in summer, the ceramic heat accumulator acts like a thermal barrier and keeps the interior cooler for longer.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3548cfb1\" data-id=\"3548cfb1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2e60de69 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"2e60de69\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:800}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Note: The ceramic heat accumulator was developed for the first time around 20 years ago and used in the inVENTer ventilation units. Since then, this structure has established itself as the market standard for decentralized ventilation units. Learn more about the original.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-59f6a128 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"59f6a128\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;b63d34a&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-62544b3a elementor-invisible\" data-id=\"62544b3a\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5b7db411 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"5b7db411\" data-element_type=\"widget\" id=\"Rotationswaermetauscher\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Heat recovery in industrial ventilation: rotary heat exchangers<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27add820 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"27add820\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>In contrast to ventilation systems with a fixed heat exchanger, the circular storage mass in rotary heat exchangers moves &#8220;rotating&#8221; around an axis. On one of these sides, warm exhaust air is fed through a duct onto the rotating disk, which heats up as a result. During the rotary movement, the pane is then guided over the supply air duct on the other side with a time delay. The cooler supply air flows in there, absorbs the thermal energy of the rotating disk and is then heated and fed into the building. The rotating disk consequently cools down again and can therefore again absorb thermal energy from the exhaust air in the further rotation.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-34b9f617 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"34b9f617\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;3d5b5c5&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-45a0f15c\" data-id=\"45a0f15c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6408e73e animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"6408e73e\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The rotary heat exchanger is also known as a heat wheel due to its design. It consists of a multitude of thin foils arranged like a kind of corrugated cardboard: a smooth foil alternates with a corrugated layer. This results in a triangular shape that forms a kind of channel. The foils are about 0.05 mm to 0.12 mm thick and usually consist of aluminum or another conductive stainless steel. In addition to heat, the rotary heat exchanger can also transfer moisture. If there is condensate on the exhaust air side, this moisture is absorbed again by the outside air. This means, especially in winter, when the air in the interior is particularly dry, the rotary heat exchanger can provide moisture by taking over larger amounts of condensate.<br \/>\nDue to their size, they are primarily used for the ventilation of industrial buildings (heat wheels can have a diameter of up to 2 meters).<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-418baef6\" data-id=\"418baef6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-628d9a96 animated-fast elementor-invisible elementor-widget elementor-widget-image\" data-id=\"628d9a96\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"362\" src=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/csm_Waermerueckgewinnung-Industrielueftung-Rotationswaermetauscher_36f2226cd5.jpg\" class=\"elementor-animation-grow attachment-large size-large wp-image-9146\" alt=\"\" srcset=\"https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/csm_Waermerueckgewinnung-Industrielueftung-Rotationswaermetauscher_36f2226cd5.jpg 400w, https:\/\/www.inventer.eu\/wp-content\/uploads\/2021\/02\/csm_Waermerueckgewinnung-Industrielueftung-Rotationswaermetauscher_36f2226cd5-300x272.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-235c4633 animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"235c4633\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:600}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Which ventilation system with heat recovery suits your house? Compare the advantages and disadvantages of the individual ventilation systems with heat recovery here.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ee02c0 animated-fast elementor-invisible elementor-widget elementor-widget-jet-headline\" data-id=\"8ee02c0\" data-element_type=\"widget\" id=\"Fazit\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"jet-headline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"jet-headline jet-headline--direction-vertical\"><span class=\"jet-headline__part jet-headline__first\"><span class=\"jet-headline__label\">Conclusion - ventilation with heat recovery<\/span><\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-712d55ad animated-fast elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"712d55ad\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>There are many technological methods of heat recovery in ventilation systems. The recuperative heat recovery takes place primarily in central systems, whereby high air volume flows are spatially separated from each other and a frost protection strategy is necessary.<br \/>\nThe regenerative heat recovery in ventilation with heat storage takes place via rotary heat exchangers for ventilation of large industrial buildings or via solid bodies made of ceramics in the decentralized systems for living space ventilation.<\/p>\n<p>A heat recovery of over 93% is technically possible thanks to the honeycomb structure of the cross-section of the ceramic. The comparatively low installation effort, the low operating costs and the simple maintenance and cleaning make the decentralized ventilation units with heat recovery particularly practical, so that they are attractive both for new buildings and for subsequent renovation measures.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-69afab86 animated-fast elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"69afab86\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;2a3e8d2&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:null,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}],&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:200,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-7362c954\" data-id=\"7362c954\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5f7c9d84 elementor-shape-circle animated-slow elementor-grid-0 e-grid-align-center elementor-invisible elementor-widget elementor-widget-social-icons\" data-id=\"5f7c9d84\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"social-icons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-social-icons-wrapper elementor-grid\">\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-facebook elementor-animation-bob elementor-repeater-item-32e1f05\" href=\"https:\/\/www.facebook.com\/inventer.de\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Facebook<\/span>\n\t\t\t\t\t\t<i class=\"fab fa-facebook\"><\/i>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-70ecf878\" data-id=\"70ecf878\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-62242165 elementor-shape-circle animated-slow elementor-grid-0 e-grid-align-center elementor-invisible elementor-widget elementor-widget-social-icons\" data-id=\"62242165\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"social-icons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-social-icons-wrapper elementor-grid\">\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-youtube elementor-animation-bob elementor-repeater-item-9af40b2\" href=\"https:\/\/www.youtube.com\/channel\/UCfu5GL18NIWjOK_xJ0xjEtA\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Youtube<\/span>\n\t\t\t\t\t\t<i class=\"fab fa-youtube\"><\/i>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-28fb822d animated-slow elementor-invisible\" data-id=\"28fb822d\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:600}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-351b8996 elementor-shape-circle elementor-grid-0 e-grid-align-center elementor-widget elementor-widget-social-icons\" data-id=\"351b8996\" data-element_type=\"widget\" data-widget_type=\"social-icons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-social-icons-wrapper elementor-grid\">\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-linkedin elementor-animation-bob elementor-repeater-item-530524f\" href=\"https:\/\/www.linkedin.com\/company\/inventer-gmbh\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Linkedin<\/span>\n\t\t\t\t\t\t<i class=\"fab fa-linkedin\"><\/i>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-251c39f2 animated-slow elementor-invisible\" data-id=\"251c39f2\" data-element_type=\"column\" data-settings=\"{&quot;animation&quot;:&quot;fadeInUp&quot;,&quot;animation_delay&quot;:800}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-60445de8 elementor-shape-circle elementor-grid-0 e-grid-align-center elementor-widget elementor-widget-social-icons\" data-id=\"60445de8\" data-element_type=\"widget\" data-widget_type=\"social-icons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-social-icons-wrapper elementor-grid\">\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-instagram elementor-animation-bob elementor-repeater-item-530524f\" href=\"https:\/\/www.instagram.com\/inventer_gmbh\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Instagram<\/span>\n\t\t\t\t\t\t<i class=\"fab fa-instagram\"><\/i>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Home Heat recovery in ventilationMethods of heat recovery in ventilation Modern houses are built energy-efficiently to protect the environment and save heating costs. When it comes to ventilation, architects and [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":16535,"parent":21632,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"full-width.php","meta":{"_acf_changed":false,"arc_restricted_post":false,"footnotes":""},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Heat recovery in ventilation<\/title>\n<meta name=\"description\" content=\"Regenerative or recuperative - which methods of heat recovery are there? Find out more about this energy-saving mechanism of action in ventilation\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.inventer.eu\/know-how\/ventilation-basics\/heat-recovery-in-ventilation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Heat recovery in ventilation\" \/>\n<meta property=\"og:description\" content=\"Regenerative or recuperative - which methods of heat recovery are there? 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