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Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required. Corrosion protection: the Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.


Easy-to-use: intuitive front control panel provides easy operation, service and maintenance. Premium performance: the hayward universal H-Series 400, 000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort.


Specifications: voltage: 120/240v; intake/discharge plumbing: 1. 5-inch; 075-inch gas line up to 50 feet from source not included; Dimensions L x W x H: 31. 5 x 21 x 23 inches; Weight: 80 pounds. Compact and efficient: compact design with 82-percent efficiency as compared to larger pool heaters; Quiet operation makes sure not to impose on leisure pool time.





1. Hayward
#ad
Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas
#adHayward #ad - Energy savings: the efficient, industry-leading design reduces circulation pump run time to provide energy savings. Easy-to-use: intuitive front control panel provides easy operation, service and maintenance.Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required. Corrosion protection: the Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.
More information #ad
Best for: in-ground pools and spas with a surface area up to 1, 200 ft. Premium performance: the hayward universal h-series 400, 000 BTU Natural Gas Heater delivers fast premium heating performance for years of reliable, long-lasting comfort. Where natural gas is available.Brand | Hayward #ad |
Manufacturer | Hayward #ad |
Height | 30.6 Inches |
Length | 39.6 Inches |
Weight | 210 Pounds |
Width | 32.8 Inches |
Part Number | W3H400FDN |
Model | W3H400FDN |
Warranty | 3-Year |
More information #ad
2. Raypak
#ad
Raypak 406,000 BTU Digital Electronic Ignition Natural Gas Pool Heater
#adRaypak #ad - Built to withstand various weather conditions, perfect solution for environments requiring efficiency, convenience and versatility. Pilot only comes on when there is a call for heat. Intermittent spark ignition pilot safety controls.More information #ad
Please note: item is unable to be shipped to state of California. Part number: 009219 | model number: P-R406A-EN-C. Space-age material means the heater won't retain residual heat after it is turned off, allowing it to be installed without the use of costly metal heat sinks.Brand | Raypak #ad |
Manufacturer | RAYPAK #ad |
Height | 31 Inches |
Length | 43 Inches |
Weight | 249 Pounds |
Width | 35.3 Inches |
Part Number | 009219 |
Model | 009219 |
Warranty | 1-Year |
More information #ad
3. Hayward
#ad
Propane, Hayward W3H400FDP Universal H-Series 400,000 BTU Pool and Spa Heater
#adHayward #ad - Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required. Energy savings: the efficient, industry-leading design reduces circulation pump run time to provide energy savings.Easy-to-use: intuitive front control panel provides easy operation, service and maintenance. Premium performance: the hayward universal H-Series 400, 000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort.
More information #ad
Best for: in-ground pools and spas with a surface area up to 1, 200 ft. Where natural gas is available. Corrosion protection: the Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.Brand | Hayward #ad |
Manufacturer | Hayward #ad |
Height | 30.6 Inches |
Length | 39.6 Inches |
Weight | 214 Pounds |
Width | 32.8 Inches |
Part Number | W3H400FDP |
Model | W3H400FDP |
Warranty | 3-Year |
More information #ad
4. Raypak
#ad
Raypak 406,000 Btu Digital Natural Gas Pool Heater with Cupro Nickel Ray-014941
#adRaypak #ad - Part number: 014941. Microprocessor controlled thermostat. Model number: p-r406A-EN-X. Pagoda design ensures heater stays active in harsh weather conditions. Cupro-nickel gas pool and spa heater.More information #ad
Brand | Raypak #ad |
Manufacturer | RAYPAK #ad |
Height | 30.5 Inches |
Length | 45 Inches |
Weight | 250 Pounds |
Width | 37 Inches |
Part Number | 014941 |
Model | 014941 |
More information #ad
5. Pentair
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Pentair EC462025 MasterTemp 125 125,000 BTU Compact Energy Efficient Swimming Pool and Spa Natural Gas Heater for Small Pools Up to 15,000 Gallons
#adPentair #ad - Great for smaller pools: natural gas heater boasts 125, 000 BTUs, designed for smaller bodies of water up to 15, 000 gallons. Thoughtful, user-friendly design:: rotating digital display allows for any installation rotation and is easy to read; User-friendly indicator lights allow for simple system operation and monitoring; Corrosion and UV-resistant housing deliver durable, lasting use.More information #ad
Safety features: water pressure and stack flue sensor for overheat prevention, auto shut-off when the temperature exceeds factory limits, and manual shut-off for servicing; Certified for Low NOx emissions. Specifications: voltage: 120/240v; intake/discharge plumbing: 1. 5-inch; 075-inch gas line up to 50 feet from source not included; Dimensions L x W x H: 31. 5 x 21 x 23 inches; Weight: 80 pounds. Compact and efficient: compact design with 82-percent efficiency as compared to larger pool heaters; Quiet operation makes sure not to impose on leisure pool time.
Brand | Pentair #ad |
Manufacturer | Pentair #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 0 Pounds |
Width | 0 Inches |
Part Number | EC-462024 |
Model | EC-462024 |
Warranty | 1-Year |
More information #ad
6. Raypak
#ad
Raypak 009218 PR336AENC49 336000 BTU Natural Gas Pool Heater
#adRaypak #ad - Backlit LCD Controls. Corrosion-Free Polymer Headers. Integral fin Copper Exchanger Tube. Self-diagnostic Microprocessor Controlled Ignition.More information #ad
Brand | Raypak #ad |
Weight | 230 Pounds |
Part Number | 9218 |
Model | R009218 |
More information #ad
7. Raypak
#ad
Raypak 406,000 BTU Natural Gas Millivolt Pool Heater
#adRaypak #ad - Model number: p-r406A-MN-C. High-wind resistance. Corrosion-resistant headers. Part number: 009195. Pvc plumbing directly to the heater.More information #ad
Brand | Raypak #ad |
Manufacturer | RAYPAK #ad |
Height | 31 Inches |
Length | 43 Inches |
Weight | 249 Pounds |
Width | 35.3 Inches |
Part Number | 009195 |
Model | 009195 |
Warranty | 1-Year |
More information #ad
8. Raypak
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Natural Gas, Raypak 105,000 BTU Swimming Pool and Spa Heater
#adRaypak #ad - Gas connection is 1/2" npt and measures 4 5/8" off the ground level. Please note: item is unable to be shipped to state of California. Standard 120v 3-prong power cord or can be easily converted to 220v.More information #ad
Designed for easy installation on above ground pools, smaller in-ground pools, and spas. Simple analog thermostat dial for accurate pool and spa temperature setting. Unit measures 27. 5" h x 12" wide x 24" Deep.Brand | Raypak #ad |
Manufacturer | RAYPAK #ad |
Height | 16 Inches |
Length | 30 Inches |
Weight | 102 Pounds |
Width | 27 Inches |
Part Number | 014779 |
Model | 014779 |
More information #ad
9. Hayward
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Hayward FDXLHXA1250 Heat Exchanger Assembly Replacement for Hayward H250FD Universal H-Series Low Nox Pool Heater
#adHayward #ad - Heat exchanger assembly. Weight 48. 5 pounds. Low nox emissions - Meets Clean Air Quality Standards. 2 inch x 2 1/2 inch cpVC Union Plumbing Connections. Fits hayward universal h-series low nox pool heater model h250fd.More information #ad
Brand | Hayward #ad |
Manufacturer | Hayward #ad |
Height | 3 Inches |
Length | 18 Inches |
Weight | 35 Pounds |
Width | 18 Inches |
Part Number | FDXLHXA1250 |
Model | FDXLHXA1250 |
More information #ad
10. Raypak
#ad
Raypak 406,000 BTU Digital Electronic Ignition Propane Pool Heater
#adRaypak #ad - Also features a stainless steel tube sheet, 2 inch CPVC water connections, burner tray and fire tile. Cabinet and the internals are non-corrosive and rust resistant.More information #ad
Features polytuf powder coating, polymer headers, and an all copper-fin-tube heat exchanger. Microprocessor-controlled thermostat can be set precisely to your liking, set it and forget it. 406, 000 btu propane digital pool and spa heater.Brand | Raypak #ad |
Manufacturer | RAYPAK #ad |
Height | 31 Inches |
Length | 43 Inches |
Weight | 349 Pounds |
Width | 35.3 Inches |
Part Number | 009227 |
Model | 009227 |
Warranty | 1-Year |
More information #ad