Heat pump

To ensure that there is an air exchange in the building, there is an exhaust heat pump or a hot water heat pump that compensates for the excess pressure created by the fan at the bottom of the solar wall.

The heat pump utilizes the energy found in the building's exhaust air before it is led out into the open air so that no energy is lost when ventilating the building.

The control of the heat pump is in the same control system as other electronically controlled components, controlled by the building's energy and indoor climate control so that it only runs in relation to the need for ventilation and heat production.

In larger buildings with many apartments and where common ventilation exits can be established, a larger heat pump is located in the attic.