HEAT PUMPS

Air Source Heat Pumps

Installing Air Souce Heat Pumps is relatively straight forward. They will help to reduce your Carbon Footprint and reduce your energy bills. Government grants of up to £900.00 towards installation costs are available.

Government Air Source Heat Pump Grants & Eligibility Information

How Air Source Heat Pumps Work

Air Source Heat Pumps work by extracting heat from the outside air. They can operate effectively at temperatures as low as minus 15 degrees Centrigade. The heat pump uses a refrigerant, heat exchanger, fan and compressor to utilise the heat energy in the air. The refrigerant has a low boiling point and evaporates when the air, passing through the heat exchanger, warms it up. The compressor increases the pressure of the refrigerant which then raises the temperature to a useful level. The refrigerant then condenses and, in a second heat exchanger, releases heat into air or more commonly water. This then heats up the mains water to around 50 - 65 degrees Centigrade. This can be stored in a tank for domestic hot water and also pumped through pipes for Underfloor Heating or through Radiators for Central Heating.

Compared to the average gas hot water boiler a good Air Source Heat Pump will be 3-5 times more energy efficient. This will help to cut fuel costs and reduce CO₂ emissions. The typical household can expect to save 50% on their annual energy bills.

The efficiency of Air Source Heat Pumps is measured as COP - Coefficient of Performance - the higher the COP the more energy efficient the Air Source Heat Pump.. Our equipment operates with a COP of between 2.5 - 6 depending on the external temperature and the mains water temperature. In the summer the efficiency goes up and in very cold winter weather it will reduce.