Ventilator for installation between exterior and room of building, has convector which can be moved between positions in which air flows through convector from fan, or from room as result of convection

摘要

A convector (62) is provided in an outflow opening (23), and operates with heat or cooling energy. The convector can be moved between two positions. In the first position the air fed to the outflow opening flows through the convector, and in the second position, the room air flows through the convector as a result of convection.