Heat pumps work by taking low grade heat from the environment such as the air, the ground or a water source and use this through a refrigerant cycle to produce low temperature water.
The heat pumps can also be used to provide cooling as well as heat either separately or at the same time. This is often used for applications that require both heat and cooling such as dairy processing and potato stores.
Heat pumps are an environmentally friendly alternative to fossil fuel, heating systems such as LPG or Oil, because of this, Ground Source Heat Pumps currently receive the highest levels of government support from the Renewable Heat Incentive.
As they use electricity to operate they work well in conjunction with other renewable technologies such as wind or solar to provide even lower heating costs.