When you buy through our links, we may earn a commission. Learn more ›
Wiki Shopping
Wiki Shopping
TipsLearnAbout
Wiki Shopping

250,000 BTU Pool Heaters and Up

All Pool Heaters

48 250,000 BTU pool heaters and up from Raypak, Pentair and Hayward. Most cost $3,255 to $5,761, and half cost less than $4,100.

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: Raypak (37)Pentair (8)

All filtersFilters×
BrandRaypak37Pentair8Hayward3
Heater typeNatural gas28Propane gas15
Heating output2660001040000010399000740600053360004300000333300032500002
Show all 11264000236000013660001
Pool typeInground6
FuelNatural gas27Propane15
PriceUnder $3,0001Under $4,0001$3,000 & above38$4,000 & above23$5,000 & above8
Clear allShow 48 Pool Heaters
48 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
Raypak

Natural gas, 266000 Heating output, Natural gas

+266,000 BTU output for heating a pool
+Runs on natural gas
+Cupro nickel construction
$4,658.44
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 406000 Heating output, Natural gas

+Large 406,000 BTU output for heating bigger pools
+Runs on natural gas
+Cupro nickel heat exchanger
$4,673.49
as of 11/04/2026 00:49 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
Raypak

Natural gas, 266000 Heating output, Natural gas

+266,000 BTU output for faster pool heating
+Runs on natural gas
+Built for 2,000 to 6,000 foot elevation
$3,374.00
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 266000 Heating output, Natural gas

+266,000 BTU output for heating a pool
+Runs on natural gas
+Digital controls for precise temperature settings
$4,045.59
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 333000 Heating output, Natural gas

+333,000 BTU output for faster heating of larger pools
+Runs on natural gas
+Built for 2,000 to 6,000 foot elevation
No price recorded yet.
Raypak

Natural gas, 399000 Heating output, Natural gas

+399,000 BTU output for high heating capacity
+Runs on natural gas
+Cast iron ASME construction
No price recorded yet.
Raypak

Natural gas, 333000 Heating output, Natural gas

+333,000 BTU output for heating a pool
+Runs on natural gas
+Low NOx design
$4,847.11
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 399000 Heating output, Natural gas

+Large 399k BTU output for heating bigger pools
+Runs on natural gas
+Digital controls for setting temperature
$5,758.15
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 399000 Heating output, Natural gas

+Large 399K BTU output for heating bigger pools
+Runs on natural gas
+Cupro-nickel heat exchanger
$7,308.00
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 399000 Heating output, Natural gas

+Large 399K BTU output for heating bigger pools
+Runs on natural gas
+Low NOx design
$5,867.00
as of 11/04/2026 00:49 PST - Details
Raypak

266000 Heating output

+Rated at 266,000 BTU for heating pools
+Digital controls for setting temperature
+Low NOx design for reduced emissions
$4,167.85
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 399000 Heating output, Natural gas

+399,000 BTU natural gas output for faster heating
+Digital controls for setting the temperature
+Electronic ignition for starting the heater
$7,344.00
as of 11/04/2026 00:49 PST - Details
Raypak

Natural gas, 333000 Heating output, Natural gas

+Runs on natural gas
+333,000 BTU output for mid-size pools
+ASME cast iron construction
$4,538.00
as of 11/04/2026 00:49 PST - Details
Pentair

300000 Heating output

+Rated at 300,000 BTU for faster heating of big pools
$4,099.99
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
Raypak

366000 Heating output

+Rated at 366,000 BTU for high heating output
+Millivolt gas heater design
$3,453.29
as of 11/04/2026 00:49 PST - Details
Pentair

250000 Heating output

+Rated at 250,000 BTU for heating larger pool volumes
No price recorded yet.
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
Natural gas266000Natural gasn/a$4,658.44
as of 11/04/2026 00:49 PST - Details
Natural gas406000Natural gasn/a$4,673.49
as of 11/04/2026 00:49 PST - Details
Natural gas400000n/a$4,499.00
as of 11/04/2026 00:37 PST - Details
Natural gas266000Natural gasn/a$3,374.00
as of 11/04/2026 00:49 PST - Details
Natural gas266000Natural gasn/a$4,045.59
as of 11/04/2026 00:49 PST - Details
Natural gas333000Natural gasn/aNo current price
Natural gas399000Natural gasn/aNo current price
Natural gas333000Natural gasn/a$4,847.11
as of 11/04/2026 00:49 PST - Details
Natural gas399000Natural gasn/a$5,758.15
as of 11/04/2026 00:49 PST - Details
Natural gas399000Natural gasn/a$7,308.00
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.