Description
Bill Loosely has invented a heat pump, and installed it in his own bungalow. He explains how it works like a refrigerator in reverse, taking the heat from the soil of his garden, where copper pipes filled with gas are buried several feet down, and pumping the heat into the house. This costs a fraction of the normal running costs, is quite cheap to install, and uses hardly any fossil fuel.
‘This film is of historical interest but the issues raised are still current.
