Air source heat pumps are becoming increasingly popular but what benefits can they bring and are they a viable means of heating a home?
Classified as either air-to-air or air-to-water depending on whether the heat distribution system in the building uses air or water, air source heat pumps can have a number of environmental and operation advantages. For a start, more heat is supplied to the building than energy is consumed by the heat pump. An air-source heat pump with a COP of three will supply three kilowatts of heat energy for the consumption of one kilowatt of electricity. If the heat pump is replacing (or being used as an alternative to) electric space heating, the use of the heat pump will offer significant carbon savings.