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250,000 BTU Pool Heaters and Up

All Pool Heaters

10 250,000 BTU pool heaters and up from Raypak, Pentair and Hayward. Most cost $4,281 to $5,099, and half cost less than $4,447.

Pool heaters whose title states a heating output of 250,000 BTU or more.

We do not pick by hand: a pool heater is here because its listed specs pass the checks.

Top brands: Pentair (5)

All filtersFilters (1)×
Heating output: 400000  ×Clear all
BrandPentair5Hayward3Raypak2
Heater typeNatural gas5Propane gas4
Heating output2660001040000010399000740600053360004300000333300032500002
Show all 11264000236000013660001
Pool typeInground6
FuelNatural gas4Propane4
Price$3,000 & above8$4,000 & above7$5,000 & above2
Clear allShow 10 Pool Heaters
Heating output: 400000  ×10 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
Pentair

Propane gas, 400000 Heating output, Propane

+Rated at 400,000 BTU for larger pool heating
+Runs on propane gas fuel
+High performance MasterTemp model for pool use
−Requires a propane gas supply to operate
$4,281.00
as of 11/04/2026 00:37 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
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
Pentair

400000 Heating output

+Rated at 400,000 BTU, a high output for large pools
$4,739.00
as of 11/04/2026 00:37 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
Pentair

Propane gas, 400000 Heating output, Propane

+400,000 BTU output for larger pools
+Low NOx emissions design
+Propane gas fuel option
−Requires a propane supply connection
$4,395.00
as of 11/04/2026 00:37 PST - Details
Hayward

Natural gas, 400000 Heating output, Inground, Natural gas

+400000 heating output: only 5 of 48 here have a higher heating output
$5,099.00
as of 11/03/2026 23:21 PST - Details
Hayward

Natural gas, 400000 Heating output, Inground, Natural gas

+400000 heating output: only 5 of 48 here have a higher heating output
No price recorded yet.

Compare specs

pool heaterHeater typeHeating outputFuelSpec scorePrice
Propane gas400000Propanen/a$3,799.00
as of 11/04/2026 00:49 PST - Details
Propane gas400000Propanen/a$4,281.00
as of 11/04/2026 00:37 PST - Details
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
400000n/a$4,739.00
as of 11/04/2026 00:37 PST - Details
Propane gas400000Propanen/a$5,099.00
as of 11/03/2026 23:21 PST - Details
Propane gas400000Propanen/a$4,395.00
as of 11/04/2026 00:37 PST - Details
Natural gas400000Natural gasn/a$5,099.00
as of 11/03/2026 23:21 PST - Details
Natural gas400000Natural gasn/aNo current price

Before you buy

Other uses

Hot Tubs194Pool Cleaners262Pool Pumps73Saunas1,505Pool Thermometers48Pool Chemicals & Test Kits61Handheld Pool Vacuums66Pool Brushes62Pool Maintenance Kits58Pool Vacuum Heads67Pool Skimmers & Nets65DE Pool Filters61

Popular filters

Natural Gas Pool Heaters42Pool Heaters: Natural Gas41Heat Pump Pool Heaters28Pool Heaters: Propane23Pool Heaters for Inground Pools12266,000 BTU Pool Heaters10400,000 BTU Pool Heaters10Pool Heaters for Inground and Above-Ground Pools9

Pool Heaters by use

Inground Pool Heaters20Above Ground Pool Heaters12

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