Hello there! Are you tired searching for the best gas pool heaters but could not able to find the right one? Worry not readers, because in this article, we have covered everything you need to know before buying the gas pool heaters online. Keep Reading!
Choosing the best gas pool heaters can be a tough job, especially when you are looking for one that suits your budget. Therefore, we have listed the top 10 gas pool heaters available at best prices with all the latest demanding features catering to your needs. We have analysed each and every product and have shared detailed information about them. Based on our personal review, we found this Hayward FDXLGSV0001 FD Natural Gas Valve Replacement for Hayward Universal H-Series Low Nox Pool Heater best in our list. However, if you are looking for a product with a cheaper price, then you can check out Raypak 406,000 Btu Digital Natural Gas Pool Heater with Cupro Nickel Ray-014941 which is equally good with good reviews. We are very much sure that you’ll be able to make a wiser decision in buying the Top gas pool heaters by going through the exclusive list mentioned below.
All the products listed in this guide are good in their own way. You simply have to pick one that you feel delivers on the best performance. Let us get right into them already. Check the quick reviews below.
Best gas pool heaters

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Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas
Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas
Features
- The Hayward Universal H-Series 400,000 BTU Natural Gas Heater delivers premium heating performance for years of reliable, long-lasting comfort
- A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry
- Industry-leading hydraulic design reduces circulation pump run time to provide major energy savings
- Front-panel-only access and intuitive control pad provide easy operation, service and maintenance
- Low NOx emissions meet air quality standards in all low-NOx areas, ensuring low environmental impact
Raypak 014784 PR156AENC 150000 BTU Natural Gas Heater
Raypak 014784 PR156AENC 150000 BTU Natural Gas Heater
$1,941.00 in stock
Features
- Part Number: 014784 | Model Number: P-R156A-EN-C
- Allows you to extend your swim season, open your pool earlier and close it later.
- Perfect choice for above-ground pools and spas
- 2" water connections
- Perfect for above-ground pools and spas
Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater
Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater
Features
- Built to withstand various weather conditions, perfect solution for environments requiring efficiency, convenience and versatility.
- Intermittent spark ignition pilot safety controls. Pilot only comes on when there is a call for heat.
- 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.
- Part Number: 009217 | Model Number: P-R266A-EN-C
- Gas powered and suitable for use with swimming pools and spas
Raypak 406,000 Btu Digital Natural Gas Pool Heater with Cupro Nickel Ray-014941
Raypak 406,000 Btu Digital Natural Gas Pool Heater with Cupro Nickel Ray-014941
$4,071.30 in stock
Features
- Part Number: 014941
- Model Number: P-R406A-EN-X
- Cupro-nickel gas pool and spa heater
- Pagoda design ensures heater stays active in harsh weather conditions
- Microprocessor controlled thermostat
EcoSmart SMART POOL 27 Electric Tankless Pool Heater, 27kW, 240 Volt, 112.5 Amps with Self Modulating Technology
EcoSmart SMART POOL 27 Electric Tankless Pool Heater, 27kW, 240 Volt, 112.5 Amps with Self Modulating Technology
$604.99 in stock
3 used from $442.67
Features
- Flow Activation
- Eco smart Pool Heaters are compact and easy to install for a new or existing pool
- Set your temperature digitally to increments of 1-Degree. Set it and forget it.
- Compatible with Eco smart Remote Control. Activation Flow - 12 +/- 2 GPM
- Can be used as an alternative to or booster to heat pump.
Hayward FDXLGSV0001 FD Natural Gas Valve Replacement for Hayward Universal H-Series Low Nox Pool Heater
Hayward FDXLGSV0001 FD Natural Gas Valve Replacement for Hayward Universal H-Series Low Nox Pool Heater
1 used from $201.99
Features
- Fd natural gas valve
- Fits hayward universal h-series low nox pool heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp
- Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp
- Weight 64.5 pounds
Raypak 105,000 BTU Swimming Pool and Spa Heater – Natural Gas
Raypak 105,000 BTU Swimming Pool and Spa Heater - Natural Gas
$1,622.00 in stock
Features
- Designed for easy installation on above ground pools, smaller in-ground pools, and spas
- Standard 120v 3-prong power cord or can be easily converted to 220v
- Simple analog thermostat dial for accurate pool and spa temperature setting
- Fully serviceable and built for years of operation
- Gas connection is 1/2" NPT and measures 4 5/8" off the ground level. Unit measures 27.5" H x 12" wide X 24" Deep
Hayward W3H400FDP Universal H-Series 400,000 BTU Pool and Spa Heater, Propane
Hayward W3H400FDP Universal H-Series 400,000 BTU Pool and Spa Heater, Propane
Features
- The Hayward Universal H-Series 400,000 BTU Propane Heater delivers premium heating performance for years of reliable, long-lasting comfort
- A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry
- Industry-leading hydraulic design reduces circulation pump run time to provide major energy savings
- Front-panel-only access and intuitive control pad provide easy operation, service and maintenance
- Low NOx emissions meet air quality standards in all low-NOx areas, ensuring low environmental impact
Raypak 105,000 BTU Swimming Pool and Spa Heater – Propane
Raypak 105,000 BTU Swimming Pool and Spa Heater - Propane
$1,599.00 in stock
Features
- Designed for easy installation on above ground pools, smaller in-ground pools, and spas
- Standard 120v 3-prong power cord or can be easily converted to 220v
- Simple analog thermostat dial for accurate pool and spa temperature setting
- Gas connection is 1/2" NPT and measures 4 5/8" off the ground level
- Unit measures 27.5" H x 12" wide X 24" Deep
Raypak 014784 Polymer Headers Digital Control/Electronic Ignition/Natural Gas P-R156A-EN-C Heater
Raypak 014784 Polymer Headers Digital Control/Electronic Ignition/Natural Gas P-R156A-EN-C Heater
Features
- Natural Gas^Automatic Water bypass^Digital Thermostat
So, These are some of the best gas pool heaters with all the major features that you must be looking for. Now you can easily pick out the best one based on your budget, needs and preferences. Still, if you found yourself confused about choosing the best product, then you can try this Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater for more recommendations. Hope you enjoyed reading the article!