Geothermal heat pumps (GHPs), sometimes referred to as GeoExchange, earth-coupled, ground-source, or water-source heat pumps, have been in use since the late 1940s. They use the relatively constan...
Air source heat pumps are an efficient and energy-saving HVAC equipment that utilizes the heat in the air to provide heating or cooling for buildings. The working principle of air source heat pump...