Air Source Heat Pumps
While operating similarly to ground source heat pumps, Air Source heat pumps may deliver with slightly less efficiency, giving a C.O.P. of 1-3.5 to 3-9 compared to 1-4 on heat pumps. However, without the need for an expensive bore hole, they do offer the advantage of cheaper installation but slightly less C.O.P. to ground source.
Air source heat pumps use the air to convert energy through evaporation working in the reverse way of a refrigerator; transferring the heat from the pump to a cylinder or heat bank
Requiring a very efficient property and owing to the lower heat that they generate, these units are ideally suited for use in conjunction with solar systems to provide heat to a house, preferably with an under floor system or radiators.
Air Source heat pumps are often the preferred option for:
- Smaller properties with limited garden
- Properties without mains gas connection
- Cheaper installation