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Pool Heaters for Inground Pools

All Pool Heaters

4 pool heaters for inground pools from Hayward and Raypak. Prices run $2,699 to $4,499.

All filtersFilters (2)×
Heater type: Natural gas  ×Pool type: Inground  ×Clear all
BrandHayward2Pentair1Raypak1
Heater typeHeat pump5Natural gas4Propane gas3
Heating output400000213500011500001
Pool typeInground4
FuelNatural gas3
PriceUnder $3,0001$2,500 & above4$3,000 & above2
Clear allShow 4 Pool Heaters
Heater type: Natural gas  ×Pool type: Inground  ×4 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
Hayward

Natural gas, 150000 Heating output, Inground, Natural gas

+150,000 BTU output for heating inground pools
+Runs on natural gas fuel
+Made for inground pools
−Requires a natural gas line connection
$2,999.00
as of 11/03/2026 23:21 PST - Details
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
Hayward

Natural gas, 135000 Heating output, Inground, Natural gas

+135,000 BTU output for inground pool heating
+Runs on natural gas fuel
+Gas-fired design heats quickly regardless of outdoor temperature
−Gas-fired heaters need a natural gas line connection
$2,699.00
as of 11/03/2026 23:21 PST - Details
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 outputPool typeFuelSpec scorePrice
Natural gas150000IngroundNatural gasn/a$2,999.00
as of 11/03/2026 23:21 PST - Details
Natural gas400000IngroundNatural gasn/a$4,298.99
as of 11/04/2026 00:49 PST - Details
Natural gas135000IngroundNatural gasn/a$2,699.00
as of 11/03/2026 23:21 PST - Details
Natural gas400000Ingroundn/a$4,499.00
as of 11/04/2026 00:37 PST - Details

Before you buy

Other Pool type options

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Popular filters

Natural Gas Pool Heaters42Pool Heaters: Natural Gas41Heat Pump Pool Heaters28Pool Heaters: Propane23266,000 BTU Pool Heaters10400,000 BTU Pool Heaters10Pool Heaters for Inground and Above-Ground Pools9399,000 BTU Pool Heaters7

Pool Heaters by use

Inground Pool Heaters20Above Ground Pool Heaters12250,000 BTU Pool Heaters and Up48

Related product types

Pool Heaters for Inground and Above-Ground Pools9

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