An air source heat pump extracts heat from the outside air to provide heating and hot water in your home.
Air source heat pumps are a low carbon way to provide heat and hot water in a home. Heat pumps use technology similar to that found in air conditioning units but in reverse, drawing in outside air and extracting the heat from it.
Pipes in the heat pump contain a liquid, known as a refrigerant. This heat from the air is warm enough to turn the refrigerant liquid into a gas. This gas is then moved through a compressor resulting in an increase in pressure and a rise in temperature.
The gas, which is now heated, is passed over an internal heat exchange surface and this heat can either be blown around the interior of the home or transferred into a central heating or hot water system.
As the heat is transferred into the home, the gas falls in temperature and returns to a liquid. This cycle of reverse refrigeration repeats until your home reaches the required temperature setting on your thermostat.
Heat pumps operate from electricity and therefore eliminate the need for gas boilers, so there is no direct use of fossil fuels in your heating and hot water systems. The only by-product is cold air. Air source heat pump units are generally installed externally and require a yearly maintenance check.
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