10 Best Pool Heaters of 2021

Top 10  Pool Heaters:  Editor Recommended

1. Sun2Solar Blue 16-Foot-by-32-Foot Rectangle Solar Cover | 1200 Series | Heat Retaining Blanket for In-Ground and Above-Ground Rectangular Swimming Pools | Use Sun to Heat Pool | Bubble-Side Down

Sun2Solar Blue 16-Foot-by-32-Foot Rectangle Solar Cover | 1200 Series | Heat Retaining Blanket for In-Ground and Above-Ground Rectangular Swimming Pools | Use Sun to Heat Pool | Bubble-Side Down

Features:

  • ATTRACTIVE BLUE DESIGN – Sun2Solar solar blankets are made from a film of thousands of tiny bubbles, which work together to collect and retain heat both at night and on those chilly days. The blue color provides an appealing look while also using the sun’s rays to help warm your swimming pool.
  • MINIMIZE WATER EVAPORATION – The use of a solar cover helps in preventing up to 95% of pool water evaporation. When not enjoying a refreshing swim, keeping your pool covered lessens the vast amount of water lost into the environment. Fill up your swimming pool less and enjoy it more!
  • JUMP INTO WARMTH – Show friends and family your bravery by jumping in without the standard toe dip. Enter the swimming pool confidently knowing the Sun2Solar solar cover has kept the water warm just for you. It’s easy to put on and take off allowing more time for showing off.
  • 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 back atop the water. Don’t lose all of that warmth generated throughout the day when the sun sets. Assure your pool’s temperature does not drop too much by protecting it at night through use of a solar blanket.
  • 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 bubbles facing down to the water and trace a line on the cover showing where you should cut off the additional material. Do so confidently knowing this won’t affect the manufacturer’s warranty—they understand.

2. ZZP 240V 3KW Electric Water Heater Thermostat SPA Bath Heater Pump,Premium Quality Water Heater Thermostat Swimming Pool Thermostat Portable Pool Heater

ZZP 240V 3KW Electric Water Heater Thermostat SPA Bath Heater Pump,Premium Quality Water Heater Thermostat Swimming Pool Thermostat Portable Pool Heater

Features:

  • Note:It is 240V 3KW,only made for US.1.【Automatic Heating】This thermostat is designed specifically for the hot tub, adopted Flow Temperature Sensor TechnologyThe sensor is always under the control of the single-chip microcomputer to accurately and timely monitor the temperature status of the entire heating system and the flow.the water temperature bath maintained at 22-50 degrees Celsius, give your Swimming Pool to create a more comfortable environment
  • 2.【Intelligent Self-checking System】Comprehensively monitor the operating status of the system, and quickly make appropriate judgments and displays, thereby avoiding poor water flow, dry fuel and other failures in the absence of water, and more convenient for the user or maintenance personnel to judge and maintain the fault.
  • 3.【High Quanlity】The heating thermostat liner material is 316# stainless steel and the electric heating tube provided by Duan Baker Company which has good corrosion resistance (chlorine corrosion).
  • 4.【Multiple Protections】The Pool Heater has multiple protections, safety and reliability – over-current, ultra-high temperature, short circuit to the power supply line, and water flow protection.
  • 5.【ST Series Pool Heaters】 special used for small pool less than 5CBM, massage pool and hot spring to heat and keep warm; Meanwhile, can be a assistant for heat pump in heating.This product adopts latest constant temperature controller- -temperature sensor replaces traditional magnetic flow switch,it improves greatly of trouble free in working time, adaptability of water environment and stability.

3. Hayward W3H150FDN Universal H-Series 150,000 BTU Pool and Spa Heater, Natural Gas

Hayward W3H150FDN Universal H-Series 150,000 BTU Pool and Spa Heater, Natural Gas

Features:

  • 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

4. SunHeater S120U Universal Solar Pool Heater 2 by 20-Feet, Black

SunHeater S120U Universal Solar Pool Heater 2 by 20-Feet, Black

Features:

  • Simple DIY installation; for in ground or above ground pools
  • Installs on roof, rack, ground or fence
  • Patented web design for maximum exposure to sun’s rays
  • Uses existing pool pump
  • Raises pool water temperature 6-10 degrees F
  • Power Source Type: Manual
  • MADE IN USA

5. Goplus Solar Dome Swimming Pool Heater Above Ground, Pool Solar Heater, Sun Heater

Goplus Solar Dome Swimming Pool Heater Above Ground, Pool Solar Heater, Sun Heater

Features:

  • ☀️ Heat your pool in the environmentally friendly way, No electricity or gas connections
  • ☀️ Extend your swimming season with warm water and heat your pool to a warm, comfortable temperature
  • ☀️ Space saving and aesthetically pleasing when compared to solar panels
  • ☀️ A protective cover is included to protect the dome when not in use
  • ☀️ Solar powered swimming pool heater, Connects to 1.5 inch hoses

6. 1500W Immersion Heater, Gesail UL-Listed Bucket Water Heater with 304 Stainless-steel Guard, Submersible Bucket Heater with Thermostat and Auto Shutoff, Perfect for Home Travel and Winter Job

1500W Immersion Heater, Gesail UL-Listed Bucket Water Heater with 304 Stainless-steel Guard, Submersible Bucket Heater with Thermostat and Auto Shutoff, Perfect for Home Travel and Winter Job

Features:

  • High Power: 1500W, 120V(MUST USE 15A OUTLET, THIS HEATER IS 12.5A CURRENT) travel immersion water heater, High power for quickly heating, heats 5 gallons of water in few minutes, portable immersion heater will heat water continuously over 180 degrees F and towards boiling(It can’t boil water).greatly saving your time. Note:people can’t be in the water while the heater is working.
  • Thermostat and Auto Shut off – The middle stainless steel tube contains a thermal overload safety switch, when water reaches a certain temperature(about 180-194 degrees F), immersion heater for water can automatically cycle on and off to maintain water temperature. It will not overheating and save power.Dry burning will auto shut off power to avoid catching fire.
  • 304 Stainless-steel Guard – The heavy duty 304 stainless-steel guard on the electric bucket heater protects the heating element from directly contacting persons or animals. The holes on the guard help release heat into the water faster.
  • Simple Operation – Immerse in water at proper level. Plug into any grounded wall outlet. Check power indicator light in plug to make sure the water bucket heater is on. then the portable water heater starts working. Warning: the cord and handle can’t be submerged in water.
  • UL-Listed against to the US safety standards, 12-month warranty. Package included: 1 pack bucket heater + Manual.

7. SunHeater WS220P S220 Solar Heating System 2′ X 20′ Panel, Black

SunHeater WS220P S220 Solar Heating System 2

Features:

  • Keep your pool warm with a polypropylene heat collector, solar heater features two threaded-elbow adapters
  • Includes, end caps, stainless steel hose clamps, teflon tape, hoses for second collector
  • Trilingual installation/operation manual (english/French/Spanish)
  • Ordering Guide for Round Pools, 12 to 18 feet: One box, 21 to 24 feet: Two boxes, 27 to 28 feet: Three boxes
  • Ordering guide for oval pools, 12 to 24 feet: one box, 15 to 30 or 16 to 25 feet: two boxes, 16 to 32 or 18 to 34 feet: three boxes

8. SSR SSRA-100 Solar Sun Rings Pool Water Heater w/ Anchors (3 Pack)

SSR SSRA-100 Solar Sun Rings Pool Water Heater w/ Anchors (3 Pack)

Features:

  • HEAT YOUR POOL – Solar Sun Rings are passive solar swimming pool heating devices, constructed from two layers of U.V. resistant vinyl. The upper clear layer directs the suns rays onto the bottom blue layer which absorbs about 50% of the sunlight, converting it to heat. The remaining sunlight filters through the ring into your pool water.
  • WARMING DISCS – The majority of heat loss from a pool comes from the water surface at night. Solar Sun Rings do not cover the entire surface of your pool; therefore it allows heat to escape. To help keep the warm water in your pool at night we recommend you use additional insulation such as solar fish or a solar blanket.
  • WHAT’S INCLUDED – Each unit contains 6 magnets that are used to attach the rings together. Do not over inflate. Do not use as a flotation device.
  • SOLAR ACTIVATED – Use the Solar Sun Rings to provide heat to your swimming pool from the sun. Swim comfortably without wasting energy
  • PLEASE NOTE – These Solar Sun Rings are NOT a solar cover or a replacement for a solar cover. These are floating disc heating devices.

9. JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes

JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes

Features:

  • 【Heating Helper】The instant hot water heater is suitable for rapid heats water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc. The Package includes 1 x digital thermometer, 1 x stainless steel cleaning ball, 1x water heater. It is deal gift for your friends and family during winter.
  • 【Safety & Practicality】The pool heater with stainless steel protective guard can effectively prevent the heating element from directly contacting the human body, which is more safer. Heat dissipates to the water faster by flowing through the holes in the guard. It can boil 5 gallons of water in a few minutes. d fire. Please use it strictly according to the instructions! !
  • 【Easy To Use】Fully submerge the heater in the water and connect it to a 120V power supply. Check power indicator light to make sure immersion water heater is working then it will heat water continuously. JESTOP heater is perfect for any cold weather application.
  • 【Widely Application】JESTOP Heater is small and portable. You can easy to carry it to heat your farm animals’ water, your tiling water on the job site, car wash bucket, pail of bath water in a tiny home or camper, window washing water and more!
  • 【Warning Tips】The heater must be completely immersed in water during working! Please take out the heater before touching the water! Please do not use it continuously for more than 3 hours! Please do not plug the two water heaters into the same socket to avoid fire.

10. Hayward W3H150FDP Universal H-Series 150,000 BTU Pool and Spa Heater, Propane

Hayward W3H150FDP Universal H-Series 150,000 BTU Pool and Spa Heater, Propane

Features:

  • 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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