Heat Pump

Ask anyone thinking about investing in a swimming pool and one of their major concerns is running costs.
The latest generation of swimming pool heat pumps actually harness the free heat in the air; the sun doesn't need to shine for the heat pump to work!
Today's heat pumps can extract free heat from the outside air, even when the external temperature is as low as -15°C. However the standard outdoor pool unit will only need to operate down to freezing. So how does a heat pump work? Quite simply, a heat pump is a refrigerator working in reverse, so the technology is proven and they are noted for their reliability.
The heat pump draws the outside air through an evaporator which collects the free heat from the air, which even at a paltry 10°C, amounts to five free units for every two you pay for. The heat collected is passed through a compressor and on to a condenser through which the swimming pool water is pumped on its way from the filter and back to the pool.
The pool owner doesn't want the trouble of constantly monitoring the heating of his pool so most heat pumps are fully automatic and need but one control ­the pool water thermostat!
Heat Pumps are super efficient with COP (co-efficiency of performance) of up to 5:1, this means you put in £1 in electricity and the Heat Pump gives you £5 worth of heat to the pool.