Air Source Heat Pumps
Heat energy is collected from the external ambient air using the heat pumps integral evaporator coil. The energy is then transfered into the building as high grade heat. Air source heat pumps are situated outside of buildings, and on seasonal averages give a COP of 3.8. more
Ground Source Heat Pumps
Heat energy is harnessed through collectors buried in the ground or in water. For smaller installations where the appropriate area is available a horizontal collector can be used. For larger installations where the geology is suitable boreholes can be drilled to a depth that is dependant on the ground source heat pump requirements. more