Astralpool HiNRG 400 Gas Spa & Pool Heater - Natural Gas or LPG - NLA

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No Longer Available. Consider the JXI 370, IXI 370, Raypak 350 or 430.

Archival Information:

Astralpool HiNRG 400 gas pool and spa heaters. . Available in both Left & Right-hand manifold versions. LPG & Natural Gas. Early models were blue, and now are gray.  These are a very efficient, fan-forced heater that are easily converted for indoor use with the appropriate flue kit.

Important: Anyone selling or advertising pricing online is not an Authorized Astralpool Dealer. We are both an Authorised Dealer & Service / Warranty Agent. 

We are aware, as are Astralpool, that there are unscrupulous unauthorized sellers online. As they are not authorised sellers, this may affect any future warranties. 

We offer 3 Price-points for these heaters, due to various responsibilities:

  • Pick-Up / Delivery price: You Pick-Up in-store, or we deliver (Vic Only)
  • Changeover Price: Replacing like-for-like, and we will request more information.
  • New-Installs: Must be quoted with more information, and site visit.


  • Pick-up / Delivery: Full Manufacturer's Warranty, as per their terms.
  • Changeovers & New-Installs: Full Manufacturer's Warranty, plus our in-house Warranty, with priority call-outs from us, as an Astral Authorized Service Agent.

      HiNRG Features:
      - Improved heat exchanger and manifolds
      - Easier access to burners and igniter
      - Pre-tapped for Pressure-relief Valves
      - General Improvements for Service
      - Improved Combustion  
      - Improved corrosion-resistance
      - Available In-Store, or with Installation

      Easily converted for Indoor Use.

      As per Fluidra's (Astralpool / Zodiac) Authorized Dealer policies, these items can only be purchased in-store, or with installation. Please contact for more information. We currently have installers in Victoria & Western Australia. Note, that anyone selling these items online cannot be an Authorised Astralpool, Zodiac, Fluidra Dealer, so please be aware of this.

      Recommended Retail Prices for HiNRG Gas Pool Heaters:

      Model SKU Recommend Retail Price
      HiNRG 400 Gas Heater 158021 $8,211.98
      HiNRG 400 Gas Heater (left hand) 148021


      High Performance, highly reliable and in a compact package. The AstralPool HiNRG Heaters are designed for rapid heat up of your swimming pool or spa and to work with today’s energy efficient variable speed pumps, even when set on energy efficient low speed.

      Available in three models, the 175, 250 and 400, the HiNRG Heater can be ordered for Natural Gas or LPG and has kilowatt equivalent outputs of 39 kW, 55kW or a massive 90 kW.

      The build quality, an important factor for gas pool and spa heating is so high that the HiNRG Heater is covered by a 5 year limited warranty on both commercial and residential installations.

      Gas Pool & Spa Heaters by: (We recommend)

      Spa Repairs & Pool Heating Services