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250,000 BTU Pool Heaters and Up

All Pool Heaters

4 250,000 BTU pool heaters and up from Raypak, Pentair and Hayward. Prices run $3,199 to $3,835.

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.

All filtersFilters (1)×
Heating output: 336000  ×Clear all
BrandRaypak4
Heater typeNatural gas3Propane gas1
Heating output2660001040000010399000740600053360004300000333300032500002
Show all 11264000236000013660001
FuelNatural gas3Propane1
Price$3,000 & above4
Clear allShow 4 Pool Heaters
Heating output: 336000  ×4 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
Raypak

Propane gas, 336000 Heating output, Propane

+336,000 BTU output for heating a pool
+Runs on propane
+Digital electronic ignition
$3,199.00-12%Was: $3,632.00
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 336000 Heating output, Natural gas

+336,000 BTU output for heating a pool
+Runs on natural gas
+Digital electronic ignition
$3,615.00-6%List: $3,841.00
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 336000 Heating output, Natural gas

+Delivers 336000 BTU for a large pool heating load
+Runs on natural gas fuel
+Natural gas type for homes with a gas line
−Very high BTU output may be more than small pools need
$3,835.09
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 336000 Heating output, Natural gas

+336,000 BTU output for heating a pool
+Runs on natural gas
+Millivolt controls for simple operation
−Millivolt controls rather than digital controls
$3,669.13
as of 11/04/2026 00:49 PST - Details

Compare specs

pool heaterHeater typeHeating outputFuelSpec scorePrice
Propane gas336000Propanen/a$3,199.00
as of 11/04/2026 00:49 PST - Details
Natural gas336000Natural gasn/a$3,615.00
as of 11/04/2026 00:49 PST - Details
Natural gas336000Natural gasn/a$3,835.09
as of 11/04/2026 00:49 PST - Details
Natural gas336000Natural gasn/a$3,669.13
as of 11/04/2026 00:49 PST - Details

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.