Gas Pool & Spa Heaters

Pool & Spa Gas Heaters - We only recommend AstralPool and Raypak gas heaters. We can’t confidently recommend other brands (e.g. Hayward / Pentair) due to lack of support and spare parts availability in Australia.

AstralPool Gas Pool & Spa Heaters

HX 70, HX 120 - Super robust, simple spa heater design that’s proven over decades. 2 Year Warranty. 1 Year Labour. Made in Australia
Best for: smaller residential spas and fast heat-up with simple on/off control.
JX 130, JX 160 - Wall-mounted, very robust, strong performance for larger spas and smaller pools. 2 Year Warranty. 1 Year Labour. Made in Australia
Best for: higher heat demand, quicker warm-ups, and wall-mount installations.
ICI 200, ICI 400 - Fan-forced, high efficiency pool & spa gas heaters. Warranty: 3 Years/4500hrs, 1 Year Labour.
Best for: pools where efficiency and consistent heating performance matters.
iXi 370 - Fan-forced, high efficiency, Australian-made pool & spa gas heater. Warranty: 3 Years/4500hrs, 1 Year Labour.
Best for: larger pools needing faster heat-up with efficient operation.

Raypak Gas Pool & Spa Heaters

Raypak 131 Spartan - Outdoor residential spa heater (simple, purpose-built spa heating). 3-Year Warranty* on Domestic use for all parts. 1-Year on Commercial use. 1-Year Labour. Made in Australia
Best for: dedicated spa heating outdoors with a straightforward on/off setup.
Raypak 200, Raypak 280, Raypak 350, Raypak 430 - Time-proven, robust domestic gas pool & spa heaters with a simple, serviceable design. 3-Year Warranty* on Domestic use for all parts. 1-Year on Commercial use. 1-Year Labour. Made in Australia
Best for: dependable pool heating, straightforward servicing, and strong heat-up performance.
Raypak Premium 280, Raypak Premium 430 - Commercial-grade build (bronze headers, stainless base). Among the most robust gas pool & spa heaters available. 3-Year Warranty for all parts. 1-Year Labour. Made in Australia
Best for: higher usage, harsh conditions, and buyers who want “best available” construction.

Note: Warranties may vary. Check with the manufacturer for details & T&Cs.

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
Raypak 200	44	15m	1h 25m	2h 45m	4h 15m	5h 45m	7h	8h 30m	11h 15m	14h 15m	17h	19h 45m	22h 45m	25h 30m	28h 15m
Raypak 280	62	15m	1h	2h	3h	4h	5h	6h	8h	10h	12h	14h	16h	18h	20h
Raypak 350	77	10m	45m	1h 30m	2h 15m	3h 15m	4h	4h 45m	6h 15m	8h	9h 30m	11h	12h 45m	14h 15m	15h 45m
Raypak 430	95	8m	40m	1h 15m	1h 45m	2h 30m	3h 15m	3h 45m	5h 15m	6h 30m	7h 45m	9h	10h 15m	11h 30m	12h 45m

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.