How do ground source heat pumps work?

A ground source heat pump system harnesses natural heat from deep underground. It works by pumping water through pipes buried under the earth, absorbing heat into the water, which is then compressed and passed through a heat exchanger to extract the heat. The heat is then transferred to your home heating and hot water system.

Like air source heat pumps, ground source heat pumps need electricity to run, but the idea is that they use less electrical energy than the equivalent in heat energy that they produce.

Ground source heat pumps work all year round, and can provide both heating and hot water for your home, through radiators.