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Heat pumps

To generate domestic heat and hot water, heat pumps use around 75 % of the energy directly from the environment - the air, earth or groundwater. The remaining energy supplies electricity. If you generate part of this with a photovoltaic system, the heat pump can be operated in an almost climate-neutral way.

Refrigerator principle - only in reverse

A refrigerator extracts heat from the interior and releases it to the outside in order to cool. The heat pump works in exactly the opposite way: it extracts heat from the outside and makes it available as heating energy. In order to utilize the ambient heat, a refrigerant circulates in the heat pump, which changes from a liquid to a gaseous state at an ambient temperature of -30 °C. Compression is used to bring this gas to a temperature level that provides enough heat for your home. In conjunction with a panel heating system and with the appropriate system design, a heat pump can also provide a pleasant temperature in summer: the temperature in your home can be lowered by up to 3 °C. In combination with fan coil units, it is even possible to achieve cooling to the exact degree.