Heat pump: How it works, costs & subsidies | Your heating guide

The most important things in brief

Sustainability: Heat pumps use renewable energy sources such as air, earth or water and are therefore environmentally friendly.

Efficiency: You can extract up to 75% of energy from the environment, which means low heating costs.

Subsidies: The state supports the installation financially, which makes the investment more attractive.

Heat pumps extract energy from the environment and convert it into heat that can be used for heating or hot water purposes.

Heat absorption: A refrigerant absorbs the ambient heat and evaporates.
Compression: A compressor increases the pressure and thus the temperature of the refrigerant.
Heat release: The heat is released to the heating system while the refrigerant cools down again.

Features: All important components are in one device.

Installation: Easy as no refrigeration connections are required.

Click here to see our monoblock heat pumps.

Features: Divided into an outdoor and an indoor unit.

Installation: More complex, but flexible to set up.

Click here to see our split heat pumps.

Features: Specially designed for hot water preparation.

Advantages: Cost-effective and efficient for smaller households.

Click here to see our domestic hot water heat pumps.

Advantages: Low operating costs, environmental friendliness, combination with photovoltaics.

Disadvantages: Higher acquisition costs, efficiency depends on building insulation.

Monoblock & Split: From around €10,000

Geothermal heat pumps: From approx. 15,000 €

Domestic hot water heat pumps: €2,000 - €5,000

Funding: Up to 35% subsidy from the BAFA.

Ideal for new buildings, renovated old buildings and the combination with photovoltaics.