Swimming Pool Heat Pump Calculator

Work out your ideal pool or hot tub heat pump size

Use this calculator to get an estimated kW size for a swimming pool, hot tub or swim spa.

Just enter:

• Your pool or spa dimensions
• Whether it’s indoor or outdoor, in-ground or above-ground
• How often you use a cover
• Your swimming season and target water temperature (up to 40 °C for hot tubs)

Note: this is a guide only. It can’t replace a full heat-loss calculation or a proper design that looks at pipe runs, electrics, hydraulics and the rest of the system.