The decentralized, reversible ventilation system twin fresh Comfort RA 1-25 creates a permanent air exchange in single-family homes, Cafès, hotels, conference rooms, etc. The system is equipped with a ceramic heat exchanger, which ensures the supply air heating by means of the exhaust air heat energy. The efficiency of the heat recovery is approx. 85%.The system is designed for installation in exterior walls of buildings. Thanks to the telescopic of construction of the system can be mounted in different walls the ventilation device. The ceramic heat storage transfers the waste heat to fresh air to heat up. The fan unit is equipped with automatic shutter flap, the ventilation pipe shut off when the ventilation system is switched off and thus prevent the air return current. The ventilation hood protects the system against water and foreign body intrusion and is on the outside of the building to install.This text is machine translated.