An Air Source Heat Pump heats the pool water by extracting heat out of the surrounding air, in the same way that a fridge extracts heat from the inside and expels warm air. For outdoor pools an air source heap pump is the most economical option for pool water heating, as air temperatures are generally higher during the months when an outdoor pool is in use (April to October).

Air source heat pumps are powered by electric; with the Calorex Inverter Run Air Source Heat Pump you can expect an average CoP of 9.7 (the ratio of the value of heat produced vs. the cost of electric required to produce it). Air Source Heat Pumps are scaled to the correct size to heat your pool for your desired months of use. An Air Source Heat Pump can be scaled to heat your pool for the summer months to all year round.