Ground Source Heat Pumps (GSHPs) use pipes which are buried on your land to extract heat from the ground. This heat can then be used to heat radiators, underfloor or warm air heating systems and hot water in your home or building.
A ground source heat pump circulates a mixture of water and antifreeze around a loop of pipe, called a ground loop, which is buried in your land. Heat from the ground is absorbed into the fluid and then passes through a heat exchanger into the heat pump. The ground stays at a fairly constant temperature under the surface, so the heat pump can be used throughout the year.
The length of the ground loop depends on the size of your home or building and the amount of heat you need. Longer loops can draw more heat from the ground, but need more space to be buried in.
How do Ground Source Heat Pumps Work?
Heat from the ground is absorbed at low temperatures into a fluid inside a loop of pipe (a ground loop) buried underground. The fluid then passes through a compressor that raises it to a higher temperature, which can then heat water for the heating and hot water circuits of the building. The cooled ground-loop fluid passes back into the ground where it absorbs further energy from the ground in a continuous process as long as heating is required.
Normally the loop is laid flat or coiled in trenches about two metres deep. Heat pumps have some impact on the environment as they need electricity to run, but the heat they extract from the ground, the air, or water is constantly being renewed naturally.
Please call us to discuss your requirements or request a quotation on 01535 687010