Study of a house with mechanical ventilation (exhaust/supply) and heat exchange. En granskning av ett FTX-ventilerat smahus.

Investigates excessive energy consumption in a house mechanical ventilation and heat exchanger. Explains why the house consumes so much energy. Analyses the ventilation system and defines a "coefficient of performance". Such a factor could characterise the energy requirement of a ventilation system. Emphasizes that the ventilation system is to be regarded as an entire system and that a certificate for the exchanger does not guarantee that the totalsystem will perform satisfactorily. Discusses the siting of the exchanger, whether siting of the heat exchanger, in, for example, cold attics is appropriate or not, and the insulation requirements for vents placed in cold attics.