An Air Source Heat Pump (ASHP) normally fits to the outside of the house, either at the side or the back, and sucks in the air, using a mechanism to compress and increase its temperature. This can then be sent to under floor heating or radiators and used to store hot water in a cylinder that can be utilised for showers, baths and the daily wash.
Unlike Ground Source Heat Pumps, air ones don’t require a large amount of construction works and most domestic units can be fitted quite easily. When the air enters the pump, it is absorbed at a low temperature in a fluid which is then compressed. This increases the temperature which is subsequently passed into the heating systems of the house.