AstralPool
AstralPool HX Gas Pool Heater
AstralPool HX Gas Pool Heater
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Astral HX Gas Heater – HX70 & HX120 Models
High-Efficiency Residential Gas Heating for Pools and Spas
The Astral HX Gas Heater range delivers rapid, efficient heating performance tailored for Australian residential pools and spas. Available in two sizes — HX70 (16 kW) and HX120 (24 kW) — this compact unit features a robust cupro-nickel heat exchanger, premium Genus IV LCD digital controls, and electronic ignition for safe and reliable start-up. Designed exclusively for outdoor installation, the HX range combines powerful performance with small footprint convenience.
Built for longevity and backed by AstralPool’s reputation for quality, the HX series suits medium to large residential pools, spa combos, and colder climate installations. We offer expert guidance, fast Australia-wide dispatch, and optional draft hood add-ons for specialty compliance — enquire with our team today.
Key Features
- Durable cupro nickel heat exchanger for enhanced corrosion resistance
- Electronic ignition with flame sensing for reliable start-up and safety
- Outdoor installation only — no flue kit required for operation
- 150–400 L/min flow rate accommodates a wide range of pool plumbing setups
- Powder coated metal cabinet with sleek compact profile
- Optional draft hood kits available for semi-enclosed installs
- 3-year manufacturer warranty for residential use
Model Comparison Table
| Model | Gas Input (MJ/h) | Heat Output (kW) | Thermal Efficiency | Weight | Warranty |
|---|---|---|---|---|---|
| HX70 | 70 MJ/h | 16 kW | ~83% | 21kg | 3 Years |
| HX120 | 120 MJ/h | 24 kW | ~83% | 25kg | 3 Years |
*Specifications sourced from official AstralPool documentation.
Recommended Pool Size
The AstralPool HX Gas Heater Series is designed for small residential pools and spas where space is limited and fast heat-up time is essential. The actual performance will vary based on factors such as outdoor temperature, pool insulation, and use of a cover. The table below provides a general sizing guide:
| Model | Recommended Pool Size |
|---|---|
| HX 70 | Up to 30,000 – 40,000 litres |
| HX 120 | Up to 50,000 – 60,000 litres |
For optimal results, pair your HX heater with a thermal pool cover and ensure the unit is installed in a sheltered outdoor location. The HX Series offers simple installation, low emissions, and quick heating for residential pools and spas that do not require indoor flueing or large-scale output.
Optional Accessories
Need a Draft Hood?
For enclosed or semi-indoor installations, a draft hood is essential to safely ventilate exhaust gases and prevent carbon monoxide buildup. These stainless-steel attachments ensure that combustion byproducts are properly diverted and released via a flue or vent system. Select the correct draft hood for your model below:
• HX70 Draft Hood — suited for enclosed/confined setups using the HX70 heater
• HX120 Draft Hood — suited for enclosed/confined setups using the HX120 heater
Contact us to include them with your order. Required for compliance in certain installations.
Frequently Asked Questions
Q1: Can I install this heater indoors or in an enclosed area?
No — the HX70 and HX120 are outdoor-only units. If semi-enclosed, a draft hood accessory may be required to meet safety compliance.
Q2: Is the heater compatible with saltwater or mineral pools?
Yes — the cupro nickel heat exchanger provides strong resistance to salt, chlorinated, and mineral pool water chemistry.
Q3: Can I connect this to LPG instead of natural gas?
Yes, LPG conversion kits are available on request. Please confirm this option when ordering to ensure correct configuration.
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