10 Best pool heaters of 2025

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Best Choice

1

WOPOLTOP
WOPOLTOP 100,000 BTU Full DC Inverter Pool Heat Pump for Swimming Pools, Dual Function of Heating and Cooling, 30KW Electric Pool Heater with WiFi Smart Control via APP, 220-240V, up to 26,000 Gallons
Main highlights

Energy Efficient Design
Full frequency conversion minimizes power use, saving energy.

Ideal for Large Pools
Suitable for pools up to 26,000 gallons, both above and underground.

Easy Remote Control
WiFi app control praised for ease and convenience.
Key specs
- heating capacity:100000 BTU
- power source:Electric
- noise level:47-58 decibels
- dimensions:36 x 14 x 25 inches
- cycle time:N/A
9.8

Exceptional

Our Rating
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Value for Money

2

Raypak

Raypak Digital Cupro-Nickel Natural Gas 240,000 BTU Pool Heater - 014939
9.7

Exceptional

Our Rating
3

yoisie

Immersion Water Heater 1800W, Portable Mini Pool Heater, Bucket Heater, Adjustable Thermostat, Real Time Temperature Display, Anti Dry Burn Protection, for Bathtub, hot tub, Inflatable Pools, 120V
9.5

Excellent

Our Rating
4

Varpoolfaye
Varpoolfaye Electric Pool Heater for Inground Pool 30000 BTU Swimming Pool Heater Pump Above Ground Pool Heater 120V 8000 Gallon Heating or Cooling WiFi Control Schedule
Main highlights

High Performance Heating
Delivers up to 30000 BTU with a COP of 5.8, ideal for pools up to 8000 gallons.

All Season Comfort
Perfect for maintaining ideal pool temperatures year-round, from heating to cooling.

Convenient WiFi Control
Easily manage pool temperature and settings remotely using the app.
Key specs
- Max Pool Size:8000 gallons
- Thermostat:WiFi-enabled control
- Installation Type:Inground
- Dimensions:35 x 14 x 22 inches
- Material:Titanium heat exchanger
9.2

Excellent

Our Rating
5

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

Premium Performance and Reliability
The Hayward Universal H-Series 250,000 BTU Natural Gas Heater delivers fast and efficient heating with exceptional corrosion protection and energy savings.

Ideal for In-Ground Pools and Spas
Best suited for in-ground pools and spas up to 750 sq. ft. in areas requiring low-NOx emissions and where natural gas is available.

Ease of Installation and Use
Customers frequently praise the heater's easy installation process and intuitive front control panel for straightforward operation and maintenance.
9.0

Excellent

Our Rating

9.7
Temperature control

9.5
Simple to use

9.3
Efficient Energy Use
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6

Lakkzoom
Immersion Water Heater,with 304 Stainless Steel Cover Intelligent Temperature Control and UL Certification Portable Bucket Heater Heat 5 Gallons of Water in Minutes
Main highlights

Safe and Efficient Heating
1500W power heats 5 gallons quickly; UL certified for safety.

Versatile Use Cases
Ideal for RVs, small baths, emergency kits, and travel.

Reliable Temperature Control
Praised for accurate temperature control and easy operation.
Key specs
- wattage:1500W
- special features:UL certified, portable
- maximum temperature:75°C (165°F)
- voltage:110V AC
- heat output:N/A
8.9

Very Good

Our Rating

9.7
Simple to use

9.3
Heat transferring

8.2
Temperature control
7

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

16% Off
Main highlights

Built for All Weather Conditions
Built to withstand various weather conditions, perfect solution for environments requiring efficiency, convenience, and versatility. High efficiency, small footprint.

Ideal for Quick and Efficient Pool Heating
Intermittent spark ignition pilot safety controls. Pilot only comes on when there is a call for heat. Heats pool quickly and efficiently.

Highly Praised for Energy Efficiency
Runs 50% more efficiently than older models, saving time and energy. Easy to install and maintain, with readily available parts.
8.8

Very Good

Our Rating

9.9
Easy installation

9.9
worth the money

9.7
Efficient Energy Use
8

Dommsinon

2000W Immersion Water Heater UL Listed,Portable Electric Water Heater with 304 SS Anti-scalding,Updated with Digital Thermometer,S Hook,2 Reusable Straps,Heats up to 5 gallons of Water in Minutes
8.5

Good

Our Rating
9

Varpoolfaye
Varpoolfaye Electric Pool Heater Pump 5000 Gallon 120v Pool Heaters for Above Ground Pools 16000 BTU Swimming Pool Heat Pump WiFi Control Heat Or Cool Spa Heater Pump
Main highlights

High Performance Heating and Cooling
16000 BTU output, heats/cools pools up to 4000 gallons efficiently.

Ideal for Versatile Weather Conditions
Dual-mode operation with WiFi control for easy temperature management.

Praised Silent Operation
Operates at 50dB, ensuring a peaceful poolside experience.
Key specs
- heating capacity:16000 BTU
- power source:Electric
- noise level:50dB
- dimensions:16.5 x 14.2 x 17.8 inches
- cycle time:N/A
8.4

Good

Our Rating
10

Varpoolfaye

Varpoolfaye 27000 BTU Above Ground Pool Heater Electric 7000 Gallon Swimming Pool Heater for Inground Pools Heating or Cooling WiFi Control Schedule 120V
8.2

Good

Our Rating

10 Best pool heaters of 2025

1

WOPOLTOP 100,000 BTU Full DC Inverter Pool Heat Pump for Swimming Pools, Dual Function of Heating and Cooling, 30KW Electric Pool Heater with WiFi Smart Control via APP, 220-240V, up to 26,000 Gallons

How do we rank?

How do we rank?

Analyzing top stores

2

Raypak Digital Cupro-Nickel Natural Gas 240,000 BTU Pool Heater - 014939

3

Immersion Water Heater 1800W, Portable Mini Pool Heater, Bucket Heater, Adjustable Thermostat, Real Time Temperature Display, Anti Dry Burn Protection, for Bathtub, hot tub, Inflatable Pools, 120V

4

Varpoolfaye Electric Pool Heater for Inground Pool 30000 BTU Swimming Pool Heater Pump Above Ground Pool Heater 120V 8000 Gallon Heating or Cooling WiFi Control Schedule

5

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

9.7

9.5

9.3

6

Immersion Water Heater,with 304 Stainless Steel Cover Intelligent Temperature Control and UL Certification Portable Bucket Heater Heat 5 Gallons of Water in Minutes

9.7

9.3

8.2

7

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

9.9

9.9

9.7

8

2000W Immersion Water Heater UL Listed,Portable Electric Water Heater with 304 SS Anti-scalding,Updated with Digital Thermometer,S Hook,2 Reusable Straps,Heats up to 5 gallons of Water in Minutes

9

Varpoolfaye Electric Pool Heater Pump 5000 Gallon 120v Pool Heaters for Above Ground Pools 16000 BTU Swimming Pool Heat Pump WiFi Control Heat Or Cool Spa Heater Pump

10

Varpoolfaye 27000 BTU Above Ground Pool Heater Electric 7000 Gallon Swimming Pool Heater for Inground Pools Heating or Cooling WiFi Control Schedule 120V

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Immersion Water Heater 1800W, Portable Mini Pool Heater, Bucket Heater, Adjustable Thermostat, Real Time Temperature Display, Anti Dry Burn Protection, for Bathtub, hot tub, Inflatable Pools, 120V