Raypak
Natural gas, 406000 Heating output, Natural gas
+Large 406,000 BTU output for heating bigger pools
+Runs on natural gas
+Digital electronic ignition
$3,489.00-21%List: $4,426.00
as of 11/04/2026 00:49 PST - DetailsProduct details
Pros+Large 406,000 BTU output for heating bigger pools
+Runs on natural gas
+Digital electronic ignition
Compared with the 28 Pool Heaters on this page+406000 heating output: the highest heating output of the 48 here
How pros and cons are picked (About: Disclaimer) About this product
Raypak
Natural gas, 300000 Heating output, Natural gas
+Delivers 300000 BTU for large pool heating
+Runs on natural gas fuel
+Polymer header and cupronickel tubing
$3,699.00-12%List: $4,207.00
as of 11/04/2026 00:49 PST - DetailsProduct details
Pros+Delivers 300000 BTU for large pool heating
+Runs on natural gas fuel
+Polymer header and cupronickel tubing
+Digital control for temperature settings
Compared with the 28 Pool Heaters on this page−300000 heating output: 31 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
Raypak
Natural gas, 266000 Heating output, Natural gas
+Natural gas fuel type for homes with a gas line
+266,000 BTU output for large pools
+Digital electronic ignition
$3,087.31-8%List: $3,374.00
as of 11/04/2026 00:49 PST - DetailsProduct details
Pros+Natural gas fuel type for homes with a gas line
+266,000 BTU output for large pools
+Digital electronic ignition
Compared with the 28 Pool Heaters on this page−266000 heating output: 34 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+336,000 BTU output for heating a pool
+Runs on natural gas
+Digital electronic ignition
Compared with the 28 Pool Heaters on this page−336000 heating output: 24 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+400K BTU output for heating larger inground pools
+Runs on natural gas fuel
+Built for inground pool and spa use
Cons−Requires a natural gas line rather than electric hookup
Compared with the 28 Pool Heaters on this page+400000 heating output: only 5 of 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
Raypak
Natural gas, 264000 Heating output, Natural gas
+264,000 BTU output for large pools
+Runs on natural gas
+Digital control with WiFi readiness
−Requires a natural gas line and venting
$4,005.01
as of 11/04/2026 00:49 PST - DetailsProduct details
Pros+264,000 BTU output for large pools
+Runs on natural gas
+Digital control with WiFi readiness
+Low NOx emissions design
Cons−Requires a natural gas line and venting
Compared with the 28 Pool Heaters on this page−264000 heating output: 44 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) Raypak
Natural gas, 360000 Heating output, Natural gas
+Delivers 360000 BTU for large pool heating
+Runs on natural gas fuel
+Polymer header and cupronickel tubing
−Very high BTU output may be more than small pools need
No price recorded yet.
Product details
Pros+Delivers 360000 BTU for large pool heating
+Runs on natural gas fuel
+Polymer header and cupronickel tubing
+Digital control for temperature settings
Cons−Very high BTU output may be more than small pools need
Compared with the 28 Pool Heaters on this page+360000 heating output: 24 of the 48 here have a lower heating output
How pros and cons are picked (About: Disclaimer) About this product
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.
Product details
Pros+400,000 BTU output for larger pools
+Natural gas fuel, no propane tank needed
+Titanium heat exchanger for corrosion resistance
Cons−Requires a natural gas line connection
Compared with the 28 Pool Heaters on this page+400000 heating output: only 5 of 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
Raypak
Natural gas, 266000 Heating output, Natural gas
+266,000 BTU output for faster pool heating
+Runs on natural gas
+Polymer header and copper tubing
$2,994.48-6%Was: $3,179.00
as of 11/04/2026 00:49 PST - DetailsProduct details
Pros+266,000 BTU output for faster pool heating
+Runs on natural gas
+Polymer header and copper tubing
Compared with the 28 Pool Heaters on this page−266000 heating output: 34 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+Delivers 336000 BTU for a large pool heating load
+Runs on natural gas fuel
+Natural gas type for homes with a gas line
Cons−Very high BTU output may be more than small pools need
Compared with the 28 Pool Heaters on this page−336000 heating output: 24 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
Raypak
Natural gas, 266000 Heating output, Natural gas
+266,000 BTU output for heating a pool
+Runs on natural gas
+Millivolt controls for simple operation
−Millivolt controls rather than digital controls
$3,254.73
as of 11/04/2026 00:49 PST - DetailsProduct details
Pros+266,000 BTU output for heating a pool
+Runs on natural gas
+Millivolt controls for simple operation
Cons−Millivolt controls rather than digital controls
Compared with the 28 Pool Heaters on this page−266000 heating output: 34 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) 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 - DetailsProduct details
Pros+336,000 BTU output for heating a pool
+Runs on natural gas
+Millivolt controls for simple operation
Cons−Millivolt controls rather than digital controls
Compared with the 28 Pool Heaters on this page−336000 heating output: 24 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) Raypak
Natural gas, 399000 Heating output, Natural gas
+Large 399K BTU output for heating bigger pools
+Runs on natural gas
+Low NOx design
$5,861.02
as of 11/04/2026 00:49 PST - DetailsProduct details
Pros+Large 399K BTU output for heating bigger pools
+Runs on natural gas
+Low NOx design
+Digital IID ignition control
+ASME I bronze headers
Compared with the 28 Pool Heaters on this page+399000 heating output: 26 of the 48 here have a lower heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+266,000 BTU output for heating a pool
+Runs on natural gas
+Cupro nickel construction
Compared with the 28 Pool Heaters on this page−266000 heating output: 34 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+Large 406,000 BTU output for heating bigger pools
+Runs on natural gas
+Cupro nickel heat exchanger
Compared with the 28 Pool Heaters on this page+406000 heating output: the highest heating output of the 48 here
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+Rated at 400,000 BTU for inground pool heating
+Runs on natural gas fuel
+Suitable for both pools and spas
Compared with the 28 Pool Heaters on this page+400000 heating output: only 5 of 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+266,000 BTU output for faster pool heating
+Runs on natural gas
+Built for 2,000 to 6,000 foot elevation
Compared with the 28 Pool Heaters on this page−266000 heating output: 34 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+266,000 BTU output for heating a pool
+Runs on natural gas
+Digital controls for precise temperature settings
+Copper heat exchanger
+ASME I bronze headers
Compared with the 28 Pool Heaters on this page−266000 heating output: 34 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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.
Product details
Pros+333,000 BTU output for faster heating of larger pools
+Runs on natural gas
+Built for 2,000 to 6,000 foot elevation
Compared with the 28 Pool Heaters on this page−333000 heating output: 28 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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.
Product details
Pros+399,000 BTU output for high heating capacity
+Runs on natural gas
+Cast iron ASME construction
Compared with the 28 Pool Heaters on this page+399000 heating output: 26 of the 48 here have a lower heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+333,000 BTU output for heating a pool
+Runs on natural gas
+Low NOx design
+Digital IID ignition control
+Copper heat exchanger
Compared with the 28 Pool Heaters on this page−333000 heating output: 28 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+Large 399k BTU output for heating bigger pools
+Runs on natural gas
+Digital controls for setting temperature
+ASME I bronze headers
+Cupronickel heat exchanger
Compared with the 28 Pool Heaters on this page+399000 heating output: 26 of the 48 here have a lower heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+Large 399K BTU output for heating bigger pools
+Runs on natural gas
+Cupro-nickel heat exchanger
+Professional Series model
Compared with the 28 Pool Heaters on this page+399000 heating output: 26 of the 48 here have a lower heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+Large 399K BTU output for heating bigger pools
+Runs on natural gas
+Low NOx design
+Digital IID ignition control
+ASME I bronze header
Compared with the 28 Pool Heaters on this page+399000 heating output: 26 of the 48 here have a lower heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
Pros+399,000 BTU natural gas output for faster heating
+Digital controls for setting the temperature
+Electronic ignition for starting the heater
Compared with the 28 Pool Heaters on this page+399000 heating output: 26 of the 48 here have a lower heating output
How pros and cons are picked (About: Disclaimer) 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 - DetailsProduct details
Pros+Runs on natural gas
+333,000 BTU output for mid-size pools
+ASME cast iron construction
Compared with the 28 Pool Heaters on this page−333000 heating output: 28 of the 48 here have a higher heating output
How pros and cons are picked (About: Disclaimer) About this product
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 - DetailsProduct details
About this product
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.
Product details
About this product
