Ground Source Heat Pumps

Ground Source Heat Pumps (GSHP)

Ground source heat pumps extract heat from below ground using pipes that are filled with a mixture of water and antifreeze. The ‘ground loop’ is buried in your garden where the temperature remains constant, even throughout the winter. The length of the loop depends on the available space and the amount of heat required. Ground source heat pumps with longer loops produce the most heat. if you are restricted by lack of room a vertical borehole can be drilled as an alternative.

How does a ground source heat pump work?

Ground source heat pumps work by extracting heat at low temperatures from below the ground and transfering it into a refrigerant fluid that is within a loop of pipe (ground loop). The fluid travels through a compressor that raises the temperature higher still and in turn the heat can be used for domestic heating and hot water requirements. The cooled fluid continues its cycle back round the loop collecting heat from the ground and bringing into your home. Ground source heat pumps work in a continuous cycle until heating is no longer needed.