摘要 |
The device has thermosiphon for exhaust air flow (AB, FO) from an internal space and for supply air flow (ZU, AU) into the internal space. A heat exchanger (16) is provided for transferring energy of the exhaust air flow to the supply air flow. A blower (15) is provided for the exhaust air flow and/or for the supply airflow. The exhaust air and supply air flow are bent at an angle of thirty degrees in relation to a plane of the thermal building shell and are guided using the heat exchanger. |