Centralised ventilation system for supply and exhaust air with heat recovery

Centralised ventilation systems for supply and exhaust air with heat recovery for a residential unit fulfil two essential tasks: On the one hand, they extract the “stale” air out of the kitchen and bathroom etc. and add fresh air to the living rooms and bedrooms via a duct system. Since the supply air is heated by a highly efficient cross-counterflow heat exchanger (which uses only the heat contained in the exhaust air), hardly any valuable heating energy is lost in this process. The resulting flow direction of the air, in the interior rooms, ensures that no polluted air from the kitchen and bathroom can flow back into the living room or bedroom. Furthermore, such a system helps to reduce outside noise pollution to a minimum.

Advantages

• Volumetric air flow can be selected in four levels
• Filtering of the supplied fresh air and the exhaust air
• Minimisation of external noise pollution
• Use of the exhaust air heat to heat the supplied fresh air