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Heat Pump Sizing Guide - for Pools & Spas

Heat Pump Sizing - Heat Pump Sizing Guides for Pools & Spas -The above tables are to be used as a guide only and using ideal operating conditions. We recommend the largest heat pump you can budget for, as larger heat pumps ensure shorter running periods and are the most cost-effective over the long run. If possible, go at least one size up from the guide's recommendation. Note: Right-click a chart to open in a new window for a larger version.

General Heat Pump Sizing Guides

Heat Pump Sizes When Using a Cover:

Heat Pump Sizes When Not Using a Cover:

Heat Pump Sizing for Spas:

Heat-Up Times for Various kW Outputs: 
We cannot be held responsible for undersized heat pump choices.
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Electrical and gas parts must be installed and serviced by a licensed, qualified professional with experience in these products. We are not liable for incorrect installation, damage, or injury resulting from work done by an unqualified person. Performing electrical or gas work without the proper qualifications is both illegal and dangerous.

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  • All trademarks, brand names, and logos displayed on this website are the property of their respective owners. Heater and Spa Parts is an independent Australian supplier of replacement parts and accessories. Use of trademarked names, logos, or brands is for identification and compatibility purposes, in accordance with the Trademarks Act 1995. We are not affiliated with or endorsed by trademark holders unless expicitly stated.

    We are an authorised dealer, retailer, and/or service & warranty agent for many leading brands, including:
    Fluidra (AstralPool, Zodiac, Hurlcon), Aeware (Gecko), AquaFlo, Balboa, CG Air, CMP, Darlly, Davey, Del Ozone, Edgetec, Gecko, Goulds, Henden, Honeywell, Hydroquip, ITT, Jandy, Joyonway, Laing, Lo-Chlor, LX, Madimack, Magnum, Onga, Pentair, Raypak, Rheem, Reemay, S & P, Sensaheat, Spa-Craft, Spa-King, SpaNet, Spa-Quip, SpaZazz, Waterway, Weld-On, Xylem, and others.