There are two main types of heat pump – ground source and air source – in addition to the less common water source heat pump. Heat pumps use less fossil fuels than most other systems, so are a more sustainable, low carbon source of heating.
They work by absorbing heat from a source and transferring it to a fluid, which is compressed to increase the temperature further. The heat is typically transferred from the fluid into water, which is then used to provide heating and hot water to your home.