Controlled ventilation in dwellings - a contribution to energy conservation in well-insulated homes. Kontrollierte wohnungsluftung - ein beitrag zur energieeinsparung in gut warmegedammten wohnungen.

Presents a compact control system of modular construction, developed in the Netherlands, which incorporates in one unit the functions of air circulation and ventilation, heat recovery and heating. It conforms to the German health and building regulations and operates with any fuel. In 1983 it was installed in 6000 new, highly-insulated Dutch dwellings and in another 10000 dwellings in 1984. Operating costs are 700-800 florins/year for heating a living area of 110m2. Future models may include water heating.