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Natural Gas Pool Heaters

All Pool Heaters

3 natural gas pool heaters from Raypak, Hayward and Pentair. Prices run $4,299 to $4,499.

All filtersFilters (2)×
Heater type: Natural gas  ×Heating output: 400000  ×Clear all
BrandPentair2Raypak1
Heater typeNatural gas3
Heating output26600063990006333000333600034000003105000215000021800002
Show all 17200000240600021250001135000120600012400001264000130000013600001
FuelNatural gas2
Price$2,500 & above2$3,000 & above2$4,000 & above2
Clear allShow 3 Pool Heaters
Heater type: Natural gas  ×Heating output: 400000  ×3 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
Raypak

Natural gas, 400000 Heating output, Inground, Natural gas

+400K BTU output for heating larger inground pools
+Runs on natural gas fuel
+Built for inground pool and spa use
−Requires a natural gas line rather than electric hookup
$4,298.99
as of 11/04/2026 00:49 PST - Details
Pentair

Natural gas, 400000 Heating output, Natural gas

+400,000 BTU output for larger pools
+Natural gas fuel, no propane tank needed
+Titanium heat exchanger for corrosion resistance
−Requires a natural gas line connection
No price recorded yet.
Pentair

Natural gas, 400000 Heating output, Inground

+Rated at 400,000 BTU for inground pool heating
+Runs on natural gas fuel
+Suitable for both pools and spas
$4,499.00
as of 11/04/2026 00:37 PST - Details

Compare specs

pool heaterHeater typeHeating outputFuelSpec scorePrice
Natural gas400000Natural gasn/a$4,298.99
as of 11/04/2026 00:49 PST - Details
Natural gas400000Natural gasn/aNo current price
Natural gas400000n/a$4,499.00
as of 11/04/2026 00:37 PST - Details

Before you buy

Other Heater type options

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Popular filters

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Pool Heaters by use

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Spec scores, pros and cons, and prices are explained in the How it works section of the About page.