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Pool Heaters for Inground Pools

All Pool Heaters

3 pool heaters for inground pools from Hayward and Raypak. Prices run $2,699 to $5,099.

All filtersFilters (2)×
Pool type: Inground  ×Fuel: Propane  ×Clear all
BrandHayward2Raypak1
Heater typePropane gas3
Heating output40000021350001
Pool typeInground3
FuelNatural gas3Propane3
Price$2,500 & above3$3,000 & above2$5,000 & above1
Clear allShow 3 Pool Heaters
Pool type: Inground  ×Fuel: Propane  ×3 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
Raypak

Propane gas, 400000 Heating output, Inground, Propane

+400K BTU output for heating larger inground pools
+Runs on propane fuel
+Built for inground pool and spa use
−Requires a propane supply rather than electric hookup
$3,799.00-10%List: $4,199.00
as of 11/04/2026 00:49 PST - Details
Hayward

Propane gas, 135000 Heating output, Inground, Propane

+135,000 BTU output for inground pool heating
+Runs on propane gas fuel
+Gas-fired design heats quickly regardless of outdoor temperature
−Propane fuel requires a propane supply connection
$2,699.00
as of 11/03/2026 23:21 PST - Details
Hayward

Propane gas, 400000 Heating output, Inground, Propane

+400,000 BTU output for fast heating of large inground pools
+Runs on propane gas fuel
+Gas-fired design heats quickly regardless of outdoor temperature
−Propane fuel requires a propane supply connection
$5,099.00
as of 11/03/2026 23:21 PST - Details

Compare specs

pool heaterHeater typeHeating outputPool typeFuelSpec scorePrice
Propane gas400000IngroundPropanen/a$3,799.00
as of 11/04/2026 00:49 PST - Details
Propane gas135000IngroundPropanen/a$2,699.00
as of 11/03/2026 23:21 PST - Details
Propane gas400000IngroundPropanen/a$5,099.00
as of 11/03/2026 23:21 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.