Best Inground Pool Heaters – Top 8 of 2020

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We looked at hundreds reviews, and put together a list of the top sellers. Check out the top Inground Pool Heaters below.


No. 1
FibroPool FH055 In Ground Swimming Pool Heater
42 Reviews
FibroPool FH055 In Ground Swimming Pool Heater
  • 100% Titanium heat exchanger
  • Quick disconnect piping, 1 1/2" pvc and 17 Amps power-220 volts
  • Digital display and controller
  • 16" x 40" footprint, slim fit
  • US Department of Energy top Energy Efficient System, 25 cents per hour
No. 2
EcoSmart SMART POOL 27 Electric Tankless Pool Heater, 27kW, 240 Volt, 112.5 Amps with Self Modulating Technology
38 Reviews
EcoSmart SMART POOL 27 Electric Tankless Pool Heater, 27kW, 240 Volt, 112.5 Amps with Self Modulating Technology
  • 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.
No. 3
Smart Pool S601 Pool Solar Heaters, Pack of 1, Black
94 Reviews
Smart Pool S601 Pool Solar Heaters, Pack of 1, Black
  • Keep your pool warm with a polypropylene heat collector. Direct Flow System - One Header Hole for Each Heating Tube
  • Solar heater features 80 square feet of solar panels
  • Pool accessory is perfect for heating any in-ground swimming pool
  • Panel array measures 4 feet wide x 20 feet long. Raises Pool Water Temperature 6-10°F (4-6°C)
  • Installation kit required (Sold Separately)
No. 4
Sun2Solar Blue 16-Foot-by-32-Foot Rectangle Solar Cover | 1200 Series | Heat Retaining Blanket for In-Ground and...
1,860 Reviews
Sun2Solar Blue 16-Foot-by-32-Foot Rectangle Solar Cover | 1200 Series | Heat Retaining Blanket for In-Ground and...
  • ATTRACTIVE BLUE DESIGN - Sun2Solar solar blankets are made from a film of thousands of tiny bubbles, which work together to collect and...
  • MINIMIZE WATER EVAPORATION - The use of a solar cover helps in preventing up to 95% of pool water evaporation. When not enjoying a...
  • JUMP INTO WARMTH - Show friends and family your bravery by jumping in without the standard toe dip. Enter the swimming pool confidently...
  • HEAT RETENTION - After everyone has called it a day with wrinkled fingers from too much fun in the sun, make sure to place this solar cover...
  • TRIM TO FIT - Your pool may be uniquely shaped and getting the right fit is as easy as finding a marker and sharp pair of scissors. Have the...
No. 5
Hayward W3H150FDN Universal H-Series 150,000 BTU Pool and Spa Heater, Natural Gas
417 Reviews
Hayward W3H150FDN Universal H-Series 150,000 BTU Pool and Spa Heater, Natural Gas
  • The Hayward Universal H-Series 150,000 BTU Natural Gas Heater delivers premium heating performance for years of reliable, long-lasting...
  • A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water...
  • 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
No. 6
VEVOR Electric Pool Heater 11KW 220V Swimming Pool Electric Heater SPA Heater Electric Assistant Digital fit for...
  • 【HIGH-QUALITY POOL HEATER】- Power: 11 KW; Input Voltage: AC 220-240V 50/60Hz; Current: 50A; Product Size: 18.7 x 14 x 3.9"; The swimming...
  • 【FLOW TEMPERATURE SENSOR】- The electric pool heater adopts the advanced control system. The flow-temperature sensor is always under the...
  • 【INTELLIGENT SELF-CHECKING SYSTEM】- The intelligent self-diagnose function can detect automatically to reach the set temperature....
  • 【SAFE & EASY TO OPERATE】- The electric heat pump pool heater is not complicated to operate the whole installation method. The product is...
  • 【VERSATILE USAGE PLACE】- The swimming pool water heater conducts automatic heating with a stable temperature to create a more...
No. 7
Hayward W3H150FDP Universal H-Series 150,000 BTU Pool and Spa Heater, Propane
79 Reviews
Hayward W3H150FDP Universal H-Series 150,000 BTU Pool and Spa Heater, Propane
  • 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...
  • 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
No. 8
CalPalmy Yellow Immersion Water Heater | One Submersible + One Floating Heater Boiler Heats 5 Gallons of Water in...
  • Twice the Power: Heat water faster with our 1800-watt water heater and within minutes the water (About 5 gallons) will be noticeably warmer....
  • The Special Safe Feature: The heater stays floating while working to ensure the heating element never touches the bottom of the pool or tub.
  • Easy to Use: Fully submerge the UL 499 Standard certified heater in a bucket, small tub or trough of water and plug into a grounded 120v...
  • Widely Application: The immersion water heater can be used in water, especially fit for heating water in large size container like bucket,...
  • For any Cold Weather Application: Heat your farm animals’ water, your tiling water on the job site, car wash bucket, pail of bath water in...