Top 10 Best gas pool heater in 2026

Last Updated - 6/14/2026

🏆Best Choice

Hayward

Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•The Hayward Universal H-Series 150,000 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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$2599.00

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Raypak

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

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

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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$2500.00

$2999.00

-17%

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Hayward

Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•The Hayward Universal H-Series 150,000 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

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$2599.00

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Rheem

Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater, 7.0 GPM, Gray

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
•Save on Energy Costs – High Efficient Water Heater only runs when needed
•Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
•Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
•Save Space - New smaller size, 19%, and reduced weight by 22% compared to the previous model for easy installation and space savings

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$763.80

$804.00

-5%

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Raypak

Raypak 014779 PR106AENC 105000 BTU Natural Gas Pool Heater

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

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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$1609.70

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Pentair

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

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

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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$1929.00

$2198.75

-12%

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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

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

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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$1929.00

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Raypak

Raypak 014784 PR156AENC 150000 BTU Natural Gas Heater

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•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

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$2175.50

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Raypak

Raypak 009218 PR336AENC49 336000 BTU Natural Gas Pool Heater

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Integral Fin Copper Exchanger Tube
•Corrosion-Free Polymer Headers
•Backlit LCD Controls
•Self-Diagnostic Microprocessor Controlled Ignition

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$3441.80

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TURBRO

TURBRO Swimming Pool Heat Pump - 20,000 BTU - for Above and In Ground Pools and Spas - High Efficiency, All Electric Heater - No Natural Gas or Propane Needed, Manatee M20

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Extend Your Swimming Season: The TURBRO Manatee series pool heat pump warms pools of up to 104℉; great for cooler spring and fall days; maintains a comfortable water temperature but is not intended to turn your pool into a hot tub
•Cost-Saving Choice: High efficiency with a titanium heat exchanger; heating capacity of 20,000 BTU and a COP rating of 5.58; harnesses heat from the air; cut costs by up to 30% compared to using natural gas and up to 60% compared to propane
•For Above-Ground Pools: Compact design and portable for inflatable pools, frame pools, small spas, and smaller in-ground pools; compatible with saltwater pools
•Tips for Use :TURBRO heat pumps perform most efficiently when outdoor temperatures are 60°F or above. As temperatures decrease, performance and efficiency may be affected and can also vary depending on the size of your pool. Using a swimming pool cover in colder weather can help retain heat and reduce the time needed to reach your desired temperature.
•One-Person Assembly: Comes with hose clamps, hose connectors, and an installation guide; simply connect hoses and plug it in to use, no professional help needed; water hoses and a pool filter are not included
•Safe Use: IPX4 waterproof rating; equipped with a UL STD. 943 compliant three-prong plug and an ETL-approved GFCI leakage protection switch; automatically or manually lock the control panel to prevent accidental changes

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$849.99

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With our cutting-edge technology, we examine thousands of products and retailers, assessing reviews, ratings, trends, and sales rankings to identify what matters most to users like you.

Our team evaluates this data alongside genuine user feedback, merging AI analysis with human insights to provide you with real-time, highly-rated recommendations that empower your decision-making with clarity and confidence.