Heat pumps offer an energy and cost energy efficient way of heating building sustainably. By using one unit of drive energy, normally electricity, you will under most conditions get 3-5 units of heat, without any local emissions. Particularly when using renewable or clean electricity as drive energy.
Heat pumps can be used in new and old buildings, small and large ones, and in residential as well as commercial and institutional buildings.
There are different types of heat pumps suitable for different types of conditions and climates. The heat pump can extract heat from the outdoor or exhaust air, from the ground or from a body of water such as a lake, river or sea. The heat is then released directly to the indoor air or water based distribution system such as a radiator, floor heating system or to heat domestic hot water (DHW).
Large scale heat pumps can also provide heating to district heating systems, which in turn heat the buildings of a city or community.
The most common heat pumps in buildings are:
- Air-to-air heat pumps
- Air-to-water heat pumps – some extract heat from the outdoor air, some from the exhaust air
- Liquid/water-to-water heat pumps – often used to extract heat from the ground
- Liquid/water-to-air heat pumps
- Domestic hot water heat pumps (using air or liquid/water as heat source)
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