Air Source Heat Pumps

Air source heat pumps absorb heat from the outside air and can be used to warm water for radiators, underfloor heating systems, warm air convectors or hot water in your home.

An air source heat pump extracts heat from the outside air in the same way that a fridge extracts heat from its inside. It can extract heat from the air even when the outside temperature is as low as minus 15°C. Heat pumps have some impact on the environment as they need electricity to run, but the heat they extract from the ground, air, or water is constantly being renewed naturally.

Heat from the air is absorbed into a fluid which is pumped through a heat exchanger in the heat pump. Low grade heat is then extracted by the refrigeration system and, after passing through the heat pump compressor, is concentrated into higher temperature (up to 55oC) useful heat capable of heating water for the heating and hot water circuits of the house.

The efficiency of air source heat pump systems is measured by a coefficient of performance (CoP) - the amount of heat they produce compared to the amount of electricity needed to run them. A typical CoP for an air source heat pump is around 2.5 when used with under floor heating; it can be less when used with radiators. The CoP means that for every unit of electricity used to power the pump, 2.5 units of heat could be generated. (The higher the required flow temperature the lower the CoP) So Heat pumps are best suited to underfloor heating where flow temperatures are kept lower (i.e. 35oC)

Solaflair are accredited installers for DIMPLEX and MITSUBISHI HEAT PUMPS