Ground source heat pumps use pipes which are buried underground to extract heat from the ground.
Here in the UK, underground temperatures tend to have a constant, stable temperature of around 10 – 14 degrees. As it is relatively warm underground, it makes it easier for the electric pump to warm the water to a suitable temperature to use for the households hot water system. The fluids that are passed around the spiralled pipes are able to absorb the ground heat and the fluids then travel to the heat exchanger which leads to the heat pump.
Heat pumps are an essential part to this renewable technology. The heat pump is able to generate and heat all temperatures of water ranging from - 5⁰C – 12⁰C degrees. The heat pump is able to produce a maximum output temperate of an astonishing 50⁰C.