Ground source heat pumps use pipes buried in the garden to extract heat from the ground. This is usually used to heat radiators or underfloor heating systems and hot water.
Beneath the surface, the ground stays at a fairly constant temperature, so a ground source heat pump can be used throughout the year - even in the middle of winter.
They can operate at more than 3 times the efficiency of conventional heating systems and as a result help to minimise Co2 emissions and reduce the heating costs of your property.
The pump works all year round even when the temperature outside is below freezing.