Heat Pumps   

Heat Pumps

Heat pumps typically draw approximately 1/3 to 1/4 of the electricity of a standard resistance heater for the same amount of heating, reducing utility bills and with few moving parts, reducing maintenance requirements.

However, it should be ensured that the outdoor heat exchanger and fan is kept free from leaves and debris. Moreover, it must be borne in mind that a heat pump will have significantly more moving parts than an equivalent electric resistance heater or fuel burning heater.

As an electric system, no flammable or potentially asphyxiating fuel is used at the point of heating, reducing the potential danger to users, and removing the need to obtain gas or fuel supplies (except for electricity).

Heat pumps may be used to heat air, or water and have lower running costs, the compressor being the most power intensive component – when in comparison with traditional electrical resistance heaters.

"Heating and cooling is accomplished by moving a refrigerant through the heat pump's various indoor and outdoor coils and components. A compressor, condenser, expansion valve and evaporator are used to change states of the refrigerant from a liquid to hot gas and from a gas to a cold liquid."