10 Best Gas Pool Heaters of 2025

Tested and Reviewed: Top 10 Gas Pool Heaters deals with expert ratings from 8.1 to a perfect 10

July 2025 Edition

Editor's Choice

9.7

Raypak

Raypak 105,000 BTU Swimming Pool and Spa Heater - Natural Gas

Editor's bottom line:

“This gas pool heaters is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

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

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Picked by 342 people today

9.5

Raypak

Raypak 206,000 BTU Digital Electronic Ignition Natural Gas Pool Heater

Main Highlights

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: 009216 | Model Number: P-R206A-EN-C
High efficiency, Small footprint

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9.5

Raypak

Raypak 014779 PR106AENC 105000 BTU Natural Gas Pool Heater

Main Highlights

Polymer headers prevent rust stains on your pool or spa surface
All-Copper-Fin-Tube Heat Exchanger; Made from a single piece of extruded copper
Delivers uninterrupted heating performance regardless of falling leaves, wind, airborne debris, rain, downdrafts, updrafts, sleet, snow, etc
Doesn't require fans to combat drafting problems

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9.2

Pentair

Pentair EC-462024 -Natural Gas 125K Heater - Limited Warranty

Main Highlights

High-performance, affordable heater with premium features
82% energy efficiency is highest in class
1-1/2 in. Plumbing connection -- ideal for smaller bodies of water, including aboveground pools, spas and inground pools up to 15,000 gallons
Pre-mixed combustion technology for ultra-fast heat up
Easy-to-use digital display/controller

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9.0

Pentair

Pentair EC462025 MasterTemp 125 125,000 BTU Compact Energy Efficient Swimming Pool and Spa Propane Gas Heater for Small Pools Up to 15,000 Gallons

Main Highlights

High-performance, affordable heater with premium features
82% energy efficiency is highest in class
1-1/2 in. Plumbing connection -- ideal for smaller bodies of water, including aboveground pools, spas and inground pools up to 15,000 gallons
Pre-mixed combustion technology for ultra-fast heat up
Easy-to-use digital display/controller

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8.8

Raypak

Raypak 014786-156A Propane Gas Pool Heater 150K BTU for 0-1999ft Elevation

Main Highlights

Part Number: 014786
Model Number: P-R156A-EP-C
Black color
Its very easy and elegant to use

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8.6

Hayward

Hayward W3H135FDN H-Series Pool/Spa Heater, 135k BTU, Natural Gas Model

Main Highlights

Durable cupro nickel heat exchanger
Industry-leading hydraulic performance with faster speed-to-heat capability
Intuitive and easy-to-operate electronic panel
Exclusive "Totally Managed" cupro nickel heat exchanger water flow
Low NOx emissionsmeets clean air quality standards

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8.3

Hayward

Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas

Main Highlights

The Hayward Universal H-Series 250,000 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

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8.1

MasterTemp

MasterTemp Pentair EC-462027 250,000 BTU Propane Gas Pool Heater

Main Highlights

Built to last with tough rust proof exterior
Premix combustion technology for fast and efficient warm-ups
Built in safety features to ensure system protection
Rotatable, easy-to-use, intuitive operation controls
Certified for outdoor and indoor installation

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8.1

Raypak

Raypak 406,000 Btu Digital Natural Gas Pool Heater with Cupro Nickel Ray-014941

Main Highlights

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

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Our Best Overall Choice

Best Choice

9.7

Raypak

Raypak 105,000 BTU Swimming Pool and Spa Heater - Natural Gas

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

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

Show Price

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