A ground source heat pump harnesses the natural heat held in the ground to heat your home and provide hot water. A mixture of water and antefreeze is pumped through a network of pipes underground, either in trenches or boreholes. The liquid absorbs the ambient heat and then passes through a compressor and a heat exchanger. The heat exchanger then transfers the heat to your home heating system.
A ground source heat pump will work with underfloor heating or radiators, or a mix of both. It can also provide your hot water. Pipes in trenches are cheaper to install than using boreholes, but you will need a lot of outside space.
