Top 10 Best solar heater in 2026

Last Updated - 6/15/2026

🏆Best Choice

Intex

Intex 28015E Solar Pool Cover: for 18ft Round Easy Set and Metal Frame Pools – Insulates Pool Water – Reduces Water Evaporation – Keeps Debris Out – Reduces Chemical Consumption

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•EASY TO USE – Simply lay the Solar Pool Cover flat on top of your INTEX pool and let the air bubbles absorb and transfer sun heat into the pool water
•PROTECTS POOL FROM DEBRIS – Intended for a 18-foot round pool, this pool cover will minimize debris, leaves, and trash from getting into your pool; while also reducing consumption of chemicals
•EFFICIENT – The Solar Pool Cover is the most efficient type of pool cover; the Solar Pool Cover insulates pool water and reduces water evaporation by 95%
•SAFETY, QUALITY and VALUE – Intex designs, builds, and tests all its products to the highest standards with safety the first order of business; our affordable and innovative products are built to last
•CUSTOMER SATISFACTION – Our dedicated customer service team is available via phone, chat, or email to help with any questions you may have on use, installation, or service needs

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$68.96

$77.99

-12%

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BigXwell

BigXwell Solar Pool Cover, Blue 16-mil 18x36 Foot Rectangle Pool Heaters for In-Ground Pools, 1600 Series Heavy-Duty Insulating Pool Heater Cover for Swimmer

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Harness the Power of Sun: Our solar pool cover effectively utilizes sunlight to naturally heat your swimming pool, reducing reliance on expensive heaters and limiting energy expenditure.
•Maximize Heat Retention: our pool cover traps and maintains the heat within your pool. Enjoy a warm swim, regardless of the weather condition!
•educes Water & Chemical Evaporation: The solar pool cover creates a barrier that minimizes water and chemical evaporation, keeping your pool cleaner for longer and cutting down maintenance costs.
•Protect Your Pool: Secure your pool from dust, leaves, debris, and animal. Our solar pool cover provides the ultimate protection.
•Durable & Lightweight: The solar pool cover is constructed from high-quality material, promising longevity even under harsh weather conditions. It's lightweight and easy to install or remove.

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$354.99

$499.99

-29%

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Intex

Intex 28685E 47 Inch x 47 Inch Solar Pool Water Heater Mat for 8,000 Gallon Above Ground Swimming Pool with Hose Attachment and Adaptors, Black

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Solar heater mat uses solar technology to increase the temperature of the pool water by approximately 5 to 9 degrees depending on the weather
•Features an 11-square-foot surface to absorb the sun's rays to heat up above-ground pools; Dimensions (L x W): 47.25 x 47.25 inches (flat)
•Simple and economical to use, compatible with filter pumps with up to 1/3 HP or a pump flow rate less than 2,000 GPH; Weight: 6.41 pounds
•Includes a 1.25-inch hose attachment point, a bypass valve, 1 adaptor A, and 1 adaptor B for a 1.50-inch hose connection
•Constructed of heavy-duty UV stabilized PVC; Suitable for above-ground pools up to 8000 gallons; Folds for compact winter storage

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$27.95

$31.03

-10%

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Lo-Chlor

LO-CHLOR Aqua Blanket - The Liquid Solar Blanket for Pools and Energy Saving Liquid Pool Cover, Non-Toxic and Safe Pool Evaporation Prevention, Greatly Reduces Heat and Chemical Loss AB009-12 (32 Oz)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Hassle-Free: Just one small weekly dose of this liquid pool cover offers an invisible solar pill for pool water evaporation prevention, reducing the need for bulky pool warmers for inground pools.
•Cost-effective Pool Care: Save money on water, chemicals, and energy with Aqua Blanket, an advanced liquid cover for pool protection that preserves your pool’s aesthetic without an unsightly cover.
•Maintains Pool Heat: This liquid solar cover helps prevent heat loss during cool weather, extending your swimming season and acting as a liquid pool heater for greater energy efficiency.
•Reduces Water Evaporation: Aqua Blanket liquid solar blanket for pool forms an invisible layer that dramatically reduces evaporation by up to 40%, saving thousands of gallons of water annually.
•Eco-friendly & Safe: Aqua Blanket’s natural chemistry pool-perfect formula is non-toxic, biodegradable, and safe for all pool surfaces, including vinyl, and compatible with all sanitizing methods.

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$17.99

$19.49

-8%

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SunHeater

SunHeater Pool Solar Blanket - Heavy Duty Rectangular Thermal Cover with Bubbles - Heat Transfer Solar Pool Heater for In-Ground Swimming Pools - Durable 12 Mil Thick Polyethylene - 16' x 32' Feet

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Soak Up The Sun - Heat your pool the natural way with this blue solar blanket! When placed on top of the pool with the bubbles facing down, it traps the warmth from the sun and transfers it to the water.
•Keep Refills To A Minimum - Using this above ground pool heater can help minimize evaporation by up to 95%. This translates to significant savings since you don't have to add more water as often.
•Cut Down Cleaning Time & Costs - Our pool solar cover also helps keep leaves, dirt, and debris at bay. Cut down time spent on skimming and fishing out impurities and save on cleaning products!
•Customize According To Your Needs - This 16x32 feet solar pool cover is suitable for rectangular in-ground and above-ground pools. It can also be trimmed to fit square, round, and kidney-shaped pools.
•Storage Made Convenient - Despite its large dimensions, this 12 mil pool solar heater can be easily folded down to a compact size. Simply store it away in your shed or on a shelf when it's not in use.

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$182.22

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KETNET

KETNET Solar Pool Cover 6 Ft Round Solar Blanket for Above Ground Inground Pools, Hot Tub SPA Bubble Wrap Pool Cover Protector, 12 Mil Circle Thermal Covers Floating Blanket Mat for Swimming Pools

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•[Heating Your Pool /Hot Tub Water]: KETNET Solar pool cover made of thousands of tiny bubbles, which work together to collect and retain heat both at night and on those chilly days, so you can heat the water ahead of swimming or spa, or keep the water warm after swimming. Allows you to enjoy swimming all year round
•[Water Save & Dustproof]: Our bubble round pool covers can reduce water evaporation by 95%. You can reuse the water because the pool cover keeps the pool water clean, helps keep your swimming pool away from dirt and leaf, reducing the frequent cleaning time
•[12 Mil Thickness]: Most solar thermal pool covers on the market are 4-10 mils thick. Our solar pool blankets mat covers are 12 mils thick, so solar pool covers can last more longer and work efficiently. It features excellent tensile and tear resistance, ensuring durability without fading or warping under intense sun exposure
•[Perfect for Inground / Above-fround Pools / Spa]: Great for easy all kinds of such as inground or above ground frame Circular swimming pools! Your pool may be uniquely shaped and getting the right fit just need to find a marker and sharp pair of scissors, these bubble covers can be cut to any shape(round/ circle/ rectangle/ etc)
•[Multiple Size Options]: These floating bubble pool cover is waterproof and won't be damaged by soaking in water or sunlight. Pool Size Compatibility: 6/8/10/12/15/18/24 feet. Whether it's a home swimming pool or a commercial spa. It offers a perfect fit for any size. Please select the appropriate size before placing your order

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$29.99

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Solar Sun Rings

Solar Sun Rings Portable Above Ground Inground Swimming Pool Hot Tub Spa Heating Accessory Circular Heater Solar Cover, Blue (6 Pack)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•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.

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$148.99

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Solar Sun Rings

SSR1 Solar Sun Ring Swimming Pool Spa Heater 21K BTU Cover Heating SSR-1

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Absorbs Sunlight: Solar Sun Ring is composed of two sheets of UV-resistant vinyl that convert solar energy into heat, adding free heat to your pool with only the power of the sun
•Retains Heat and Water Chemistry: This solar blanket cover retains heat at night and reduces evaporation of water and chemicals
•All Weather: Water anchors add stability and weight for storms and windy conditions
•Salt Water or Chlorine: Compatible with automatic pool cleaners and not affected by salt or chlorine systems
•Easy to Clean: Easy to clean and store; when not in the water, do not store in direct sunlight as the product can burn whatever items are below it; Color: Sunburst-blue; Dimensions (W x H): 60 x 2 inches

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$37.99

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Goplus

Goplus Solar Pool Heater Above Ground, Inground Swimming Pool Dorm Heater with Rotatable Hose Connectors and Foldable Legs, Solar Powered Water Heating

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•【Enhanced Solar Absorption】 Equipped with a black coil, this water warmer allows it to capture and retain heat more effectively, boosting your pool's temperature by 5.4-7.2℉. The transparent dome cover not only maximizes sunlight penetration but also acts as a protective barrier to prevent heat loss.
•【Flexible & Space-Saving Design】 Featuring foldable legs, you can easily adjust this solar heater's angle to capture the optimal amount of sunlight throughout the day. Plus, the wider legs ensure great stability. When the season changes, the 2 legs can be folded down to make storage compact, saving you valuable space.
•【Versatile Connection Options】 This water heater includes 90° rotatable hose connectors, offering unparalleled flexibility for long and short hose connections. You can even connect up to 3 solar pool heaters in series to maximize heating power. We recommend pairing this solar water heater with a 1-2HP power pump (not included) with a flow rate of up to 16 GPM. It fits joints of 1½" and 1¼".
•【Universal Pool Compatibility】 Whether you have an above-ground or in-ground swimming pool, this pool warmer is perfectly suited. When using this heater, ensure the pressure does not exceed 0.8 kPa with a daily air pressure of 35PSI for safe and efficient operation.
•【Easy Setup & Complete Package】 In addition to the 2 hoses, this solar power heater also comes with 1 flat gasket, 1 thread nut hose, 1 sealing tape, 2 hose clamps and 2 hose reducers. Everything you need for a hassle-free setup is included in the package. Note: The package comes ready with one heater.

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$129.99

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SpaChoice

SpaChoice 1-Quart Premium Liquid Pool Heater Solar Cover In a Bottle, Liquid Solar Blanket for Pool, Made in USA

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•4 ounces per 15,000 gallons of water every 2 weeks
•Solar cover in a bottle
•Helps prevent heat loss and minimizes evaporation
•Conserves water, energy and chemicals
•Extends pool season

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$22.97

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