A heat pump is a device that uses a small amount of energy to move heat from one location to another, very similar to an air-conditioner. Usually, heat is pumped out of the air or ground in order to heat up a home or office building, this process can be reversed to cool a building as well. Traditional element geysers will use three units of electrical energy to produce three units of heat energy, a heat pump converts just one unit of electrical energy into three units of heat energy – hence a saving of up to 75%.
