Ground and air source heat pumps work by obtaining naturally occurring heat from the environment and transferring it into buildings.
To absorb heat from the ground a water-based mixture is pumped round pipes or a borehole placed in the ground. The heat obtained is then concentrated by the heat pump prior to being transferred to the heating system of the building. Only a small amount of electricity is required to run the system.
Air source pumps work on the same principle as ground source pumps by removing heat from the air instead of the ground.
These systems are increasingly being installed in new builds and also retro fitted to existing properties, saving the user a substantial amount of money in fuel, and allowing to claim government grants and payback schemes (RHI)