What are heat pumps?
Heat pumps use electricity to convert energy stored in the air, water or earth into heating energy. On average, a heat pump can generate up to 5 kWh of heating energy from 1 kWh of electricity. Basically, heat pumps work like an inverted refrigerator. However, in order to achieve a high degree of efficiency and the desired cost-effectiveness with a heat pump heating system throughout the year, a number of prerequisites must be met, especially in old buildings. In return, however, attractive subsidies are available for the purchase.