Astralpool / Hurlcon HX 120 Gas Spa Heaters - HX120 - Kept In Stock

Model: HX120 Gas Spa Heater - Astralpool Hurlcon - Natural Gas

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Accurate Stock Levels.Hurlcon HX120 / Astralpool HX120 gas pool and spa heaters. Replaces all older MiniMax and HX 120 series spa heaters.

Installation in some Melbourne & Mornington Peninsula areas available.We also stock more spare replacement parts than anyone in Australia, at all times. 

The HX series of heaters have had the same basic design for over 25 years, and it's legacy goes even further back to the days of Hendy Boilers. They are a tried & proven design, as one of the hardiest gas heaters ever made.

Kept in Stock at 10 Industry Blvd, Carrum Downs, Vic.

Authorised dealers cannot show prices online as per Astralpool's Advertising Policy. Products purchased from an Unauthorised dealer may not claim warranty as per Astralpool's Warranty Policy.

Buy Genuine with Warranty from someone that's been in the Gas-heating industry for over 20 years. 

About the Hurlcon / Astralpool HX120 Spa Gas Heater:

Gas heating is the fastest and most economical way to heat your pool and spa. The HX & WX gas pool and spa heater is the most low cost solution available in two sizes to meet your heating requirements. Made in Australia with electronic touch controls the HX & WX heater is ideal for your heating requirements.

The HX120 has a heating output of around 25kW and can raise 1000L of water 20°C in approximately 1 hour. Some spas heat faster, and some slower.

Fits in exactly the same footprint and plumbing as older, HX120 gas heaters, WX heaters, and most MiniMax / MM 120 heaters by Purex Hurlcon.

This is also the perfect heater for Spa & Swim Spa Gas conversions.

Features & Benefits:

  • Less Maintenance and improved efficiency
  • Electronic touch controls
  • Available in Natural Gas and LPG models
  • Heat on demand
  • Electronic ignition
  • Made in Australia
  • Suitable for indoor and outdoor installations
  • HX 120 Equivalent to a 24kW electric heater!

Time to Heat Water by 20°C (in a perfect world):

  • 1000L = ~65min
  • 1500L = ~78min
  • 2000l = ~95 min
  • 2500l = ~110min


  • Height: 820mm
  • Width: 390mm 
  • Depth: 515mm
  • Weight: 25kg
  • Water Flow: 150-400lpm. Anything over 300lpm should have a bypass valve assembly fitted.
  • mJ Input: 103mJ

Recommended Retail Pricing:

  • Astralpool HX 120 Gas Spa Heater - Natural Gas (10972-1): RRP $4240.75
  • Astralpool HX 120 Gas Spa Heater - LPG (10972): RRP $4240.75

Care of your HX gas heater:

  • HX heaters can last many years. We regularly service HX heaters made in the 1990s
  • By far, the most important thing is Water Balance. Corrosion from low-pH & High Bromine / Chlorine is the biggest killer of gas heaters. The water can look Crystal Clear & Perfect, while it's eating away at at the Copper heat exchanger fittings. Bromine, Trichlor Tablets, and Dichlor powders lower water pH.

More Information & Downloads:


Gas Pool & Spa Heaters by: (We recommend)

HX 120 - $2495.00

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