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Decentralized living space ventilation with inVENTer ventilation systems

Your overview of decentralized living space ventilation

You should definitely know:

Entry into the subject of ventilation

Healthy air in the house makes a significant contribution to the quality of living.

The legislature has long since recognized their necessity and stipulates that “buildings (apartments) to be constructed must be designed in such a way that the minimum air exchange required for health and heating purposes is ensured” (Section 6 (2) EnEV 2016).

Sufficient ventilation of new or modernized buildings must be ensured as early as the planning stage. The reason is obvious: in order to reduce energy consumption, residential buildings are being increasingly insulated. Inadequate ventilation, excessive humidity and insufficient oxygen are serious consequences. Because the resulting damp room climate offers ideal conditions for mold formation, mold growth and serious health risks.

The decentralized ventilation system from inVENTer protects against these dangers. We ensure healthy air in every home.

The inVENTer “disappears” inconspicuously into the wall. No additional ducts or lines are required for the installation. Retrofitting is therefore uncomplicated and possible with little effort. Our decentralized ventilation system with heat recovery creates living quality

Indoor climate / humidity

The indoor climate is very important for general well-being. Whether we feel comfortable in a room or not depends heavily on the humidity and temperature of the air. Both factors have an enormous influence on the indoor climate.

Dezentrale Wohnraumlüftung - Für ein angenehmes Raumklima

What does a pleasant indoor climate mean? When do we perceive the indoor climate as pleasant?

A room climate that is pleasant for the body is created when all factors that have an influence on human wellbeing are in harmony. Above all, the air temperature and the relative humidity determine the room climate, but also the chemical composition (such as pollutants or smells) of the air, air movements and lighting influence well-being and comfort.If the room temperature is between 19 and 22 ° C, we find it pleasant. The relative humidity should be between 40 and 60% in order to be considered healthy and comfortable.If the relative humidity is outside the normal range, we only notice this if the deviation is extreme. However, even a slight increase in humidity favors condensation and thus the formation of mold. In turn, very low humidity has effects on the human body such as burning eyes, dry skin and mucous membranes. In addition, materials such as wood or leather dry out faster. 

inVENTer tip: In a residential unit of approx. 40 m², 2 inVENTer ventilation systems of the type iV14 are sufficient to create a healthy living room climate.

inVENTer-Lüftung schafft angenehmes Raumklima

How can you create a pleasant indoor climate?

A healthy and comfortable room climate is created by keeping the room temperature in the ideal range between 19 and 22 ° C and the relative room humidity between 40 and 60%. In addition, regular air changes are hugely beneficial to wellbeing.

By constantly ventilating the rooms, excess moisture and pollutants can be removed and oxygen-rich fresh air can be supplied.

inVENTer tip: The inVENTer ventilation systems have a dust or optionally a pollen filter. The incoming air is therefore clean and free of pollen.

ventilation

Fresh, clean air is important for the health and well-being of everyone. Due to the very dense construction of buildings nowadays, continuous ventilation is becoming more and more indispensable.

Vorteile für Privatkunden
mit dezentraler Lüftung Schimmel vorbeugen

What does ventilation mean?

Ventilation means that stale, sometimes even pollutant-rich air from the interior is exchanged for fresh, oxygen-containing air from outside. Ventilation can be done manually by opening the window, but also automatically by a ventilation system. The advantage of automatic ventilation is that the used air is constantly removed and fresh air is supplied. This enables a pleasant room climate to be created, which is now hardly possible with window ventilation. You would have to open the windows day and night every 2 hours for 10 minutes in order to achieve a sufficient exchange of air. This is not possible in normal life through sleep and work, vacation or business trips. 

inVENTer tip: A decentralized ventilation system relieves you of the daily ventilation requirement, prevents mold and saves valuable heating energy.

 

Mit inVENTer bis zu 91% Wärmerückgewinnung erhalten

Why do you need ventilation?

A regular exchange of air is becoming more and more important due to the increasingly dense construction. The shell of the building is sealed by strong insulation and well-insulated and mostly even triple-glazed windows, which prevents natural ventilation.The three basic goals of ventilation are mostly to improve the air quality, dissipate humidity and regulate the room temperature. In the past, indirect ventilation took place through the leaky building envelope and the draughty windows. The window ventilation was therefore sufficient as a supplement. Today, the air exchange requirement can only be met with difficulty with window ventilation, as in well-insulated houses the windows would have to be opened day and night for 10 minutes every 2 hours. In addition, a lot of energy is lost as a result. Automatic ventilation with heat recovery can prevent this in a targeted manner. The air exchange then takes place permanently. The heat of the used air, which is transported to the outside, is stored by a ceramic heat accumulator. The change in the direction of rotation of the fan means that the fresh air flowing in can absorb the stored heat and arrive back in the room as warm, clean air. 

inVENTer tip: Up to 91% of your room heat is retained by a decentralized ventilation system from inVENTer.

Vorteile dezentraler Lüftungsanlagen mit Wärmerückgewinnung

What does “ventilate properly” mean?

Many think it is important to ventilate as much and for as long as possible. This is why the windows are permanently tilted in some households. The tilted position of the windows hardly ensures an effective air exchange, but only allows the warm rising air to escape. The walls near the window cool down and provide an ideal breeding ground for mold, as the moisture often condenses on cool walls.The fact is, therefore, that the “tilt ventilation” is not only on the wallet because energy is wasted, but there is also the risk of mold growth. Correct ventilation is therefore important. The windows should be opened completely for about 10 minutes and the heating should be turned down. This should be done at least 4 times a day – visits to guests, cooking activities or personal hygiene (bathing, showering) increase the number and duration of ventilation. In particularly well-insulated buildings there is an even greater need for ventilation, as the natural exchange of air is minimized through leaks and cracks. Sufficient manual window ventilation is therefore difficult to achieve. Automatic ventilation is ideal. A decentralized ventilation system with heat recovery not only ensures a continuous exchange of air, but also saves energy and costs. The ceramic core of the ventilation system stores the heat when the stale air is removed. After the fan has changed direction of rotation (every 70 seconds), the stored heat is transferred to the incoming fresh supply air. This allows up to 91 percent of the heat to be recovered. In addition, the permanent air exchange removes moisture and thus prevents mold. Another advantage: Dust and pollen can be filtered out of the air and do not get into the living space. 

inVENTer tip: For birthday parties and guest visits, simply turn the ventilation system to a higher level and your guests will also feel completely at ease in your home.

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Mold

Many buildings nowadays are well insulated and no longer allow a natural exchange of air through cracks and leaky windows. Insufficient air exchange increases the risk of mold formation.

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Energetisch Sanieren mit Außendämmung
Keine Chance für Schimmel, Pollen und Gerüche - Dezentrale Raumlüftung von inVENTer

How does mold develop?

Mold spores are present every day and all around us. As such, they are not dangerous. However, if mold spores get the right nutrient medium, they multiply and mold fungi develop, which in turn can cause allergies and respiratory diseases. Mold is therefore extremely dangerous to health. The ideal breeding ground for mold to develop is moisture and warmth, with moisture being the decisive factor. Daily activities such as cooking, showering, washing clothes, but also vital physical functions such as breathing or sweating, increase the humidity in living spaces considerably. If this is not removed by regular ventilation, water can condense in cool places on the wall or on cool surfaces. The resulting damp spots form the ideal breeding ground for mold. Automatic ventilation is recommended to avoid the formation of mold. Manual window ventilation would have to be carried out so frequently due to today’s very dense construction that it is practically impossible to implement in reality. Automatic ventilation can help – the resident is relieved and can feel comfortable in a healthy room climate.

 

inVENTer tip: With the inVENTer MZ-One controller, you can divide your home into different areas and ventilate them individually as required.

Mit inVENTer Schimmelgefahr vermeiden

Why is the risk of mold increasing steadily?

The aim of the Energy Saving Ordinance (EnEV) is to reduce energy consumption and save energy in buildings. In order to achieve this, the EnEV stipulates, among other things, that the building envelope should be built as tightly as possible so that as little energy as possible is lost. As a result, natural air exchange can no longer take place via cracks, semi-permeable building envelopes and leaky windows. Moisture removal is no longer possible without opening the windows to ventilate very often during the day. Only through regular ventilation can the humidity, which is created daily through breathing, sweating, cooking, showering, etc., be removed. If the air humidity remains in the rooms, the humidity settles in cold places and thus provides the ideal breeding ground for mold growth.

Since manual ventilation by opening windows costs a lot of time and, above all, energy, a decentralized ventilation system with heat recovery is ideal. This prevents mold, saves heating energy and ensures a pleasant room climate.

inVENTer tip: While you are relaxing, the ventilation systems run as quiet as a whisper and continuously ensure moisture removal and fresh air.

 

Schimmelbildung vermeiden mit den dezentralen Lüftungssystemen von inVENTer

How can mold be avoided?

The basis for mold growth is moisture and heat, with moisture being the main factor. It is therefore important to keep the room climate in such a way that the moisture present in the room does not exceed the capacity of the air to absorb. If the air can no longer absorb moisture, it settles down, especially in cold places (because cold air can absorb less moisture than warm air) and forms the basis for the formation of mold. To avoid this, regular ventilation of the rooms is essential. This can be done on the one hand by opening the windows frequently or by means of automatic ventilation. Automatic ventilation is recommended because it ensures a continuous exchange of air. If you opt for a decentralized ventilation system with heat recovery, the heat is not lost with permanent ventilation. In addition, special filters keep pollen and dust outside so that you can enjoy a healthy, feel-good climate.

 

inVENTer tip: With the inVENTer PAX you can also ventilate internal rooms.

Ventilation systems

Regular air exchange is important and necessary for a healthy indoor climate. Ventilation systems continuously provide fresh and clean air without the windows having to be opened regularly.

Belüftung mit Wärmerückgewinnung: Gegenstromwärmetauscher
Hausbelüftung mit Wärmerückgewinnung: Kreuzstromwärmetauscher
Dezentrale Lüftungsanlagen von inVENTer für ein angenehmes Wohnklima

Why do ventilation systems help?

In order to save energy, it is stipulated by law (in the Energy Saving Ordinance, EnEV for short) that the building envelope must be built as tightly as possible. As a result, a natural exchange of air via leaks in the building and on the windows is no longer possible. This saves energy at first, but requires opening windows very often to avoid mold growth. As a result, a large part of the heat escapes to the outside and energy is lost.

In addition, manual window ventilation is hardly feasible, since regular ventilation would have to be used at night, too. A decentralized ventilation system ensures a continuous exchange of air without the resident having to do anything himself. The heat is kept in the room by the integrated heat accumulator and is not lost during intermittent ventilation. This is particularly useful in winter, as the heated energy stays up to 91% in your own home. Various filters ensure freedom from pollen and dust, depending on the application. Pollutants from furniture and walls are also continuously removed by means of a decentralized ventilation system. A healthy indoor climate ensures you feel good.

inVENTer tip: You can carry out the maintenance of the inVENTer ventilation systems yourself quickly and easily. Our premium regulator MZ-One shows you when a filter change is necessary.

Dezentrale Lüftung von inVENTer - eine flexible Alternative für Wohnraumlüftung

Central or decentralized ventilation system?

In addition to conventional window ventilation, which is almost impossible to implement nowadays, there is the option of installing central ventilation systems. This allows a high volume of air to be transported, but a central system can only be integrated into a new building by laying several pipe systems or, at great expense, into an existing building. Regular and complete cleaning of these systems is made more difficult by the complex pipe systems that run through the entire building.

Decentralized systems for living space ventilation offer a flexible alternative. Decentralized ventilation systems can simply be inserted into the outer wall for both renovations and new buildings. If the wall opening is prepared, the installation of a ventilation unit can be completed in less than 2 hours. There are no ducts to be laid, and no special features need to be taken into account during maintenance. The statics are not affected by the installation of decentralized ventilation systems, since no pipe systems have to be pulled through the ceilings.

Experience has shown that even for specialists who have not yet come into contact with decentralized ventilation systems, installation was not a major hurdle. And if anything should still arise, competent specialists are available at inVENTer as contact persons. Or you can use our various installation and assembly aids (videos, leaflets, etc.) on our website.

Decentralized systems also impress with their low energy consumption and long service life. In addition, cleaning the devices is quick and easy. The filters can be used and washed several times. The heat accumulator can be sucked out or rinsed out with warm water.

While decentralized ventilation systems were originally considered an alternative to centralized ventilation systems, they have established themselves on the market in recent years and have clear advantages over central systems due to their flexible handling. The positive reaction of the market confirms this development.

 

inVENTer tip: With the inVENTer PAX you can ventilate several rooms at the same time.

Decentralized ventilation systems

A decentralized ventilation system is suitable for a continuous exchange of air in living and working spaces. It is not only the simple assembly and cleaning that is advantageous but also the durability of the devices.

inVENTer-Funktionsprinzip; Wie funktioniert die Wärmerückgewinnung bei einer dezentralen Lüftungsanlage?

How does a decentralized ventilation system work?

A decentralized ventilation system is installed in the outer wall and should always be used in pairs, which means that two ventilation devices must work together. One of the two ventilation devices draws the used room air outside. The warmth of the room air is stored in the heart of the ventilation system – the ceramic heat accumulator. After around 70 seconds, the reversible fan changes direction and transports fresh outside air into the living room. The heat stored in the ceramic core is released into the supply air and thus ensures that up to 91 percent of the room heat is retained. The second ventilation unit always works in push-pull mode, which means when one fan supplies fresh air to the room, the other one removes the stale room air. The ventilation systems can be controlled via a simple standard controller or a premium controller with variable setting options.

 

inVENTer tip: In summer, the principle of heat recovery works as passive cooling. At night, the ventilation systems are switched to “ventilate” so that the room temperature drops. The cold night air cools the ceramic core down during the day and heats the warm outside air as it flows in.

 

 

inVENTer - Ihr persönlicher Ansprechpartner für dezentrale Lüftung

Where can I get a decentralized ventilation system from?

 

inVENTer’s decentralized ventilation systems are available throughout Germany. Each of our representative offices looks after a defined postcode area and can therefore be reached quickly for you in your area. We would be happy to advise you on site and deliver the devices directly to the desired location after you have placed your order. The order placed by you will be produced for you by our production staff in no time at all, packed in the dispatch warehouse and delivered to you quickly.

If you have any questions, our technical customer service or your local representative will be happy to help.

On our homepage in the FAQ section you will find answers and information on frequently asked questions.

 

inVENTer tip: At the factory in Löberschütz you can have a look at the inVENTer products in installation situations in our showroom. Just make an appointment and let us advise you.

Was muss bei der Anschaffung einer dezentralen Lüftungsanlage beachtet werden? - inVENTer klärt auf

What must be considered when purchasing a decentralized ventilation system?

First of all, you should definitely seek advice from a specialist in order to provide you with full information and to find out what the ventilation should be. If only basic ventilation is required, a smaller number of ventilation devices is sufficient than with comfort ventilation. The basic ventilation ensures the removal of moisture and thus prevents mold, protects your health and contributes to the maintenance of the building fabric. The disadvantage here is that window ventilation is not omitted, but only reduced. Comfort ventilation requires a slightly higher number of ventilation devices, but relieves you of the obligation to open the window regularly. In addition, the rooms are continuously supplied with fresh air, which not only saves energy and prevents mold, but also creates a pleasant, feel-good climate. Various filters give you the opportunity to protect yourself from dust or pollen.

When installing a decentralized ventilation system in an existing building, it should be ensured that this is done, if possible, in connection with a renovation, as each device is inserted into a wall opening.

If you, as a tenant, want a decentralized ventilation system for your rented apartment, this should always be agreed with the landlord or the owner of the building.

 

inVENTer tip: You get a lifelong guarantee from inVENTer on the heart of every ventilation system – the ceramic heat accumulator.

 

 

How is the installation carried out?

The installation of decentralized ventilation systems from inVENTer is simple, but should still be carried out with the help of the assembly instructions and accompanied by a specialist.

 

When installing in an existing building, a wall opening is required for each ventilation device.

To give you an impression of the assembly process, you will find a brief overview below.

 

Checking the individual parts in the complete set

Installation of the wall sleeve – cutting the wall sleeve; Stabilize and align with a mounting wedge; Check the slope to the outside of 1-2%; Lay cables

Installation of the weather protection hood – fasten the sealing tape and the stop tape; Align and screw on the base plate; Slide on the weather protection cover from above

Installation of the thermal accumulator – Push the thermal accumulator into the wall sleeve up to the stop strap; Connect the fan (points to the interior); Have the controller installed in the electronics box by qualified personnel

Assembly of the inner cover – Attach the frame of the inner cover to the wall sleeve; Attach dust filter; Slide the cover onto the frame

 

 

If you have any questions, please do not hesitate to contact our technical customer service or our local representative. In addition, the installation of a decentralized ventilation system is described in detail on our homepage in the assembly chapter.

 

inVENTer tip: Regardless of whether you are building a new building or renovating your existing building, inVENTer ventilation systems can be used anywhere without any problems.

 

 

How do you keep a decentralized ventilation system clean? What should be considered during maintenance?

The dust filter, the reversible fan and the ceramic heat accumulator need to be cleaned regularly. It is advisable to clean the dust filter every three months. All you have to do is remove the cover from the inner panel and remove the filter. The filter can be washed out and reused several times.

To clean the reversing fan, the entire insert (fan + ceramic heat accumulator) is pulled out of the wall. The fan can be easily removed from the slot. Tools are not required for this. All you need is a soft cloth or brush to dust the fan blades.

The ceramic heat accumulator can be sucked out with a vacuum cleaner or blown out with compressed air. If it is very dirty, it can also be cleaned under warm running water.

We recommend cleaning the ceramic heat store every six months and cleaning the fan every year.

Please note that the ventilation unit must be disconnected from the power supply before cleaning.

 

inVENTer tip: Our customer information folder clearly supports you with maintenance. Simply download it from the homepage or request the brochure from inVENTer.

 

 

Saving energy thanks to decentralized ventilation systems

The low energy requirement of decentralized ventilation systems and the heat recovery function ensure a long-term reduction in energy costs.

Fachanwalt zur Mietminderung befragen
Permanente Frischluftzufuhr ohne Energieverluste durch Fensterlüftung

How can you save energy with the help of decentralized ventilation systems?

If your home is equipped with decentralized ventilation systems, you do not have to open the windows regularly. This not only saves your physical energy, but also prevents the heat from escaping from your living space in winter through regular ventilation. Decentralized ventilation systems ensure that you are continuously supplied with fresh air and that the moisture that arises from breathing, sweating, cooking, washing, etc. is removed. In addition, a large part of your room heat is recovered by the ceramic heat accumulator.

inVENTer tip: Since 01.01.2016, decentralized ventilation systems have also been equipped with the ErP label (ErP = Energy-related Products). The decentralized ventilation systems from inVENTer have received energy efficiency class A.

What does heat recovery mean?

In the heart of every decentralized ventilation system from inVENTer there is a ceramic heat accumulator. Ceramic is a material that can absorb and store heat particularly well. The devices also have a reversing fan that can change its direction. The ventilation systems must always be used in pairs, as one device draws in the fresh outside air, while the second device removes the stale air from the room. The ceramic core absorbs the heat from the room air and stores it. The fans change direction every 70 seconds. If the fresh outside air then flows through the heated ceramic core, heat is transferred to the fresh supply air. The outside air is thus returned to the room with a heat recovery of up to 91 percent.

inVENTer tip: The annual electricity costs for the operation of an inVENTer ventilation unit are only 4 euros.

 

Wie funktioniert die Wärmerückgewinnung im Sommer? - inVENTer klärt auf

How does heat recovery work in summer?

In summer, the principle of heat recovery works in exactly the opposite way. During the warmer months, you should let the decentralized ventilation systems run in the “ventilation” mode at night so that the air in the rooms cools down. During the day, the cold room air can then cool the ceramic storage tank as it flows out. After changing the direction of rotation of the fan, the incoming warm outside air is then cooled by the cold ceramic accumulator. In this way, the air in the rooms remains pleasant and does not heat up as much during the day.

inVENTer tip: With a decentralized ventilation system you are safe from mosquitoes, wasps and the like in your own four walls in summer.

 

Installation & assembly of decentralized ventilation devices

  • Checking the individual parts in the complete set. There is no need to procure additional materials.

  • Use of the wall sleeve: When installing in an existing building, a core drill must be made. In the event of subsequent renovation of the facade, the wall sleeve can be extended with a sliding sleeve.

  • Screw the weather protection hood to the facade and slide the hood on from above. The weather protection hood can be adapted to the facade in different colors.

  • Installation of the thermal accumulator tank: The thermal accumulator tank is pushed into the wall sleeve. The fan points to the interior and should be connected to the controller by a specialist. We would be happy to support you if necessary.

  • Attaching the inner cover: (insert soundabsorbing mat) The frame of the inner cover is attached, the dust filter is attached and the cover is placed on the frame. Various interior cover designs are available for the right look.

You can find more about the assembly and installation aid for the inVENTer ventilation systems here.

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