One of the advantages of heat pumps is that because they move heat rather than creating it by burning oil or gas, they are much more efficient with average savings of over 60% for ground source heat pumps and 40% for air source heat pumps. As a result, a heating system using heat pumps will provide a realistic return on investment over a much shorter period of time.
The efficiency of heat pumps is beyond question. For every 4kW of heat moved into your house via ground source heat pumps, only 1kW of electricity is consumed. This gives a perceived efficiency of 400%, sometimes stated as a Co-efficient Of Performance (COP) of 4:1. In the case of air source heat pumps, you can expect a COP of 3:1 which while slightly lower, is a still a huge improvement on boilers which have only around 90% efficiency rates over their lifespan truly demonstrating the advantages of heat pumps.
It’s worth remembering that to get the most efficiency from your heat pump, it pays to make your home as well insulated as possible. Less well insulated homes may not achieve the highest COP levels. COP levels will also depend on the emitter system (radiators, etc) installed.
Benefits of Heat Pumps
Lower fuel bills, especially if you are replacing conventional electric heating
Potential income through the UK government’s Renewable Heat Incentive (RHI)
Lower home carbon emissions, depending on which fuel you are replacing
No fuel deliveries needed
Can heat your home as well as your water
Minimal maintenance required