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Gas Pool & Spa Heaters

Gas Pool & Spa Heaters

Heat-up Times Chart (Raise Water by 10°C)

Use this as a quick guide to estimate how long each heater size may take to lift your pool or spa by 10°C based on water volume. Real-world results vary, but this is handy for comparing heater output and expected heat-up speed.

Heater kW* 1,000 L 5,000 L 10,000 L 15,000 L 20,000 L 25,000 L 30,000 L 40,000 L 50,000 L 60,000 L 70,000 L 80,000 L 90,000 L 100,000 L
HX 70 16 45m 3h 45m 7h 15m 10h 45m 14h 30m 18h 15m 21h 45m 29h 36h 15m 43h 45m 50h 45m 58h 65h 30m 72h 45m
HX 120 24 30m 2h 15m 4h 30m 6h 45m 9h 11h 15m 13h 30m 17h 45m 22h 15m 26h 45m 31h 15m 35h 45m 40h 15m 44h 45m
JX 130 26 30m 2h 15m 4h 15m 6h 30m 8h 30m 10h 45m 12h 45m 17h 21h 15m 25h 30m 29h 45m 34h 38h 30m 42h 45m
JX 160 33 20m 1h 40m 3h 15m 4h 45m 6h 15m 8h 9h 30m 12h 45m 16h 19h 15m 22h 30m 25h 45m 29h 32h

Disclaimer: This chart is a general guide only. Actual heating times vary depending on ambient temperature, water circulation, heater efficiency, pool cover use, wind, and heat loss. Do not rely on these figures for design, installation, or operational decisions. *kW output ratings are a rough conversion.

Important Information
Brand Information

We are an authorised dealer, retailer, and/or service & warranty agent for many leading brands, including: Fluidra (AstralPool, Zodiac, Hurlcon), Aeware, Air Supply of the Future, Aqua-Flo, Balboa, Celsior, CG Air, CMP, Custom Moulded Products (CMP), Darlly, Davey, Del Ozone, Dontek, Edgetec, Emaux, Filtrite, Gecko, Goulds, Harwil, Henden, Herga, Honeywell, HydroAir, HydroQuip, ITT, Jandy, Joyonway, Laing, Len Gordon, Lo-Chlor, LX, LX Whirlpool, Magic Plastics, Magnum, Monarch, Onga, Pentair, PoolSystems, Presair, Raypak, Reemay, Rheem, Rising Dragon, S&P, Sensaheat, Spa-Craft, Spa-King, SpaNet, Spa-Quip, SpaTex, SpaZazz, Tecmark, Therm Products, Thermcore, Waterco, Waterway, Weld-On, Whirlpool, Xylem, and others.

We also sell parts for many spa and swim spa brands, including parts to suit Alpine Spas, Artesian Spas, AquaPulse Spas, Balboa spas, Bullfrog Spas, Caldera Spas, Canadian Spa Company, Cedar Spas, Chinese import spas, Coast Spas, Costco spas, Cyclone Spas, Davey spas, Decina, Designer Spas, Dimension One Spas, eBay spas, Endless® Spas, Fastlane Pools, Fisher Spas, Gecko spas, Halo Spas, H2O Spas, H20 Spas, Heritage Spas, HotSpring Spas, HydroQuip spas, Impact Spas, Jacuzzi, Just Spas, Just Swim Spas, LA Spas, Lanark Spas, Leisurite Spas, Maax Spas, Monarch Spas, MySpa, O2 Spas, Oasis, Sapphire Spas, Sapphire Swim Spas, SCS Spas, Signature Spas, Silver Spas, Spa Industries, Spa-Quip spas, SpaNet spas, Spas Direct, Sundance Spas, Sunrans, SwimEx, Trueform Spas, Tuff Spas, Urban Pool, Vortex®, Vortex® Swim Spas, and many others.

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  • Handy PVC Plumbing Size Info

    Plumbing sizes can be confusing. Pressure PVC pipe use nominal sizes - the size is simple a name, not the measured dimension. This convention is used across most pool and spa systems so that pipes and fittings remain compatible.

    • 50mm / 2" = ~60-61mm OD
    • 40mm / 1.5" = ~48mm OD
    • 25mm / 1" = ~33-34mm OD
General Information & Disclaimers

Many products we supply are OEM-supplied and may not include retail packaging, printed instructions, or accessories. Refer to the product listing for details, or contact us if unsure.

Product images are for illustration only. Actual items may vary due to manufacturer changes, updates, and other variations. Images may show a full assembly, a partial assembly, or a specific component only. They are provided for identification purposes and do not by themselves define what is included. Please read the title and description carefully.

All products must be installed and used by qualified and experienced persons in accordance with applicable Australian standards and manufacturer requirements. We are a parts supplier, similar to an electrical, plumbing, or automotive parts supplier. We sell parts, but cannot always provide exact installation, troubleshooting, or system design advice. Buyers are expected to know what they are doing or use a qualified professional.

Contact us before ordering if your order is urgent, to confirm availability before purchasing.

® Trademark Information

All trademarks, brand names, and logos displayed on this website are the property of their respective owners. Heater & Spa Parts is an independent Australian supplier of replacement parts and accessories. Use of trademarked names, logos, and brands is for identification and compatibility purposes only, unless otherwise stated.

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