Heat pumps have existed in the UK commercial building infrastructure for well in excess of 25 years as part of industrial and commercial heating and coling systems. In recent years with the increased focus on low carbon technology and climate change mitigation, heat pumps have been identified as a key low carbon technology alongside Biomass heating to tackle the UK’s serious heating problem.
Heat pumps are classed as a renewable energy as they take an input of electricity which creates an average of 3-4times the energy to heat the building.
The way most heat pumps work is by taking heat as low as minus 12degrees C (drawing that from air, ground or water) and using this “heat” to boil refrigerant inside the heat pump. The resulting vapour is then passed into a compressor and placed under pressure, taking that old heat of minus 12C and making it into 45-55 C. This new heat is now capable of heating underfloor heating systems, compatible radiators and hot water. The vapour is then condensed back into a liquid form and goes back round the cycle again and again.
Heat Pumps extract heat from external source such as water, ground or air and the resulting heat is then released into either a wet central heating system or in the form or warmed air as part of a heating / cooling air conditioning system.