Systems without heat recovery

There's only one place for smelly, moist and stale indoor air – outside! Otherwise you risk the build-up of mould and harmful substances. Extract air systems from Systemair make sure the air is clean.

In modern, energy-efficient houses, airing via the windows is not enough. Who knows when it's time to air the room? Certainly not when the air indoors is already stale. It's much better to rely on extract air systems from Systemair. 24 hours a day, 365 days a year, these conveniently transport the desired air volume, either continuously or depending on parameters such as humidity or CO2 levels. The result – considerably less heat lost compared with conventional ventilation via the windows. And a constant supply of fresh air.

A fan removes stale, moist, impure air from the extract air rooms (such as the kitchen, bathroom and WC) via a network of ducts. The air is then guided outside via the roof or an external wall. Depending on the flow rate and application, the extract air fans can be installed in the building or on the roof. Outdoor air flows in through special openings (valves with filters in the external walls) into the living room and sleeping quarters, ensuring the whole dwelling has continuous ventilation. What's more, thanks to the adjustability of the system, the ventilation heat losses are reduced when compared with conventional ventilation via the windows. • Low-noise ventilation

A perfect exchange and a perfect indoor climate – the most important advantages of units without heat recovery

• Targeted airflows in the apartment • Air filtering thanks to filters in the supply air fixtures • Lower energy consumption thanks to EC fans • Simple installation and low maintenance costs

The right choice made easy

Extract air system in a single-family house or an apartment

The extract air fan transports moisture and odours out of the kitchen, bathroom and WC. Supply air components are integrated in the exterior walls of living and sleeping quarters to ensure sufficient exchange of air. The outdoor/supply air flows into the dwelling to compensate an underpressure. Because there is no heat recovery, it is not possible to preheat the supply air.

Extract air systems in apartment blocks

Systems in apartment blocks are managed based on demand (controlled). A central fan on the roof or in the attic controls the exchange of air for the whole building. Air extraction components in the apartments remove the moist air. This extract air system can be controlled on demand by using extract air components which monitor parameters such as humidity or presence. This system can be used for ventilating bathrooms and toilets without an external window in apartments and in similar inhabited areas, in accordance with DIN 18017 – 3. As a matter of principle, special attention must be paid to fire protection in apartment blocks.