Eco Survey & Solutions
Eco Survey & Solutions
Ground Source Heat Pumps
Ground Source Heat Pumps
High Performance Efficiency All Year Round
High Performance Efficiency All Year Round
Ground source heat pumps (GSHPs) use pipes that are buried in the garden to extract heat from the ground. This heat can then be used to heat radiators or underfloor heating systems and the hot water for your home.
A ground source heat pump circulates a mixture of water and antifreeze around a loop of pipe, called the ground loop, which is buried in your garden. Heat from the ground is absorbed into the fluid and then passes through a heat exchanger into the heat pump.
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 house.
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.
A ground source heat pump system can help to lower your carbon footprint as it uses a renewable, natural source of heat – the ground. According to the Energy Saving Trust, a heat pump with mid-range efficiency would save you most carbon when used to replace an old electric heating system (with storage heaters) or coal heating system.
A heat pump also requires a supplementary source of power, usually electricity, to power the heat pump so there will still be some resulting CO2 emissions.
If there is enough space, the collector loop can be laid horizontally in a trench about a metre or so below ground. Where there isn’t room to do this, you can drill vertical boreholes to extract heat from much further down, typically between 90m and 160m deep.
The space you need for a horizontal loop, and the depth you need for a borehole, will depend on many factors. We will design the collector array based on local conditions and the heat requirements of your home.
