To keep your pool water warm and inviting, you need a heater that provides enough heat to last your family a day or two if the power goes out. We researched the best pool heaters based on ratings, effectiveness, ease of use, and energy efficiency.
Our top pick, the Intex Solar Heater Mat for Above Ground Swimming Pool, is portable, energy-efficient, and easy to install.
Here are the best pool heaters.
Best Swimming Pool Heaters: Editor Recommended
Our Editor’s Best Swimming Pool Heaters Reviews
SaleBestseller No. 1
Aquastrong Inverter Swimming Pool Heat Pump, 55,000 BTU 16,000 Gallons Electric Pool Heater for Above Ground and Inground Pool, WiFi Capable Timer, Heating and Cooling Pool Heater 220V
- Extend Your Swim Season: The pool heat pump features a dual-mode heating and cooling system that maintains optimal water temperatures year-round. Precision control ensures heating from 47–104℉ and cooling from 47–83℉, allowing you to enjoy extended swimming sessions through autumn’s crisp chill and spring’s cool mornings.
- Rapid Heating & APP Control: Engineered for speed and efficiency, it delivers 55,000 BTU warmth in hours, perfect for large pools, up to 16,000-gallon systems, or chilly climates. Take full control via the app & control panel. Adjust temperatures remotely, track energy use, and program heating schedules to fit your lifestyle.
- Inverter Energy Saving: Intelligent heat pump system featuring full DC variable frequency technology delivers 15.8 COP for maximum heating output. Adaptive frequency conversion algorithm dynamically adjusts power in real-time, achieving 70% energy savings over traditional electric heating and 40% higher efficiency than gas systems.
- Ultra-Quiet & Auto-Defrost: Variable frequency technology reduces operational noise to just 50 dB, paired with an intelligent defrosting system featuring automatically initiated cycles every 40 minutes that complete the process in just 5 minutes, ensuring uninterrupted winter operation with continuous heating performance.
- Easy to Assemble: Our heat pump features 3 versatile connection options designed to integrate with all pools, (1.25" & 1.5" hose adapter, 1.5" adapter conversion kit, 1.5" PVC pipe converter), ensuring hassle-free installation and optimal performance. Enjoy peace of mind with our 3-year warranty. Dive into comfort and reliability.
$2,199.00
Buy on Amazon
Bestseller No. 2
TURBRO 58,000 BTU DC Inverter Swimming Pool Heat Pump, WiFi Control Electric Pool Heater for Above and Inground Pools up to 18,000 Gal, Heating and Cooling, Up to 15.8 COP, 220-240V, Beluga B58V
- Swim Any Season: Beluga series heats or cools your pool to maintain comfort all year long; set your desired water temp from 46-104°F in ambient outdoor temps from 5-109°F; programmable timer functions and smart WiFi control
- Cost-Effective Performance: Delivers 33,000 or 58,000 BTU output with a COP rating up to 15.8 (AHRI Standard 1160(I-P); air source technology utilizes ambient heat for outstanding efficiency and saves up to 70% on energy costs compared to natural gas heaters
- Inverter Technology: The Beluga series features a renowned brand’s full DC inverter compressor; intelligently adjusts working power to ensure a stable water temperature; saves up to 40% energy compared to traditional on-and-off models
- Built to Perform: Advanced titanium heat exchanger improves heat transfer efficiency while resisting corrosion to be compatible with saltwater pools; includes a four-way valve for seamless switching between heating and cooling modes
- For Variable Pools: B33V is suitable for pools up to 10,000 gallons (maximum size of 20’ round or 12’x24’ rectangular); B58V is suitable for pools up to 18,000 gallons (maximum size of 26’ round or 14’x42’ rectangular); not recommended for inflatable pools due to low water pressure. Enjoy peace of mind with a 2-year warranty on the full machine and a 5-year warranty on the compressor
SaleBestseller No. 3
TURBRO 50,000 BTU Inverter Swimming Pool Heat Pump, Electric Pool Heater for in and Above-Ground Pools up to 16,000 Gallons, WiFi Enabled, Timer, 15.90 COP, 220-240 V, IPX4-Waterproof, Beluga Series
- Extend Your Swimming Season: The TURBRO Beluga series pool heat pump is designed to maintain a consistent pool temperature, allowing you to enjoy swimming during cooler spring and fall days; please note that it is not intended to turn your pool into a hot tub
- Inverter Technology: The Beluga series features full DC inverter compressor; intelligently adjusts the heating power based on ambient temperature, water flow, and set temperature to ensure a stable water temperature
- Cost-Saving Choice: Harnesses heat from the air with a heating capacity of up to 75,000 BTU and a COP rating of up to 16.2; cuts costs by up to 40% compared to using natural gas and up to 70% compared to propane
- 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.
- For Variable Pools: Suitable for swimming or spa pools up to 21,100 gallons and a maximum size of 28.3-foot round or 20 by 40-foot oval; not recommended for inflatable pools due to low water pressure; features a titanium heat exchanger; corrosion resistant to chemicals and saltwater; compatible with seawater environments
Bestseller No. 4
VARMINPOOL Electric Pool Heat Pump, 30,000 BTU Pool Heater, 8000 Gallons, WiFi Control, Titanium Heat Exchanger, Smart Inverter, for Above Ground and Inground Pools, 120V
- Warm Your Pool Year-Round: Designed for pools up to 8000 gallons or 18 feet in diameter, this heat pump keeps your water at the perfect temperature, extending your swimming season and allowing you to swim longer.
- Efficient & Cost-Effective: The advanced inverter technology adjusts to the specific needs of your pool, optimizing energy usage and reducing operating costs while maintaining consistent warmth.
- Control from Anywhere: Manage your pool heater remotely with the WiFi-enabled app. Set schedules, adjust the temperature, and monitor performance on the go for ultimate convenience.
- Long-Lasting Performance: Built with a corrosion-resistant titanium heat exchanger, this heat pump is designed to work effectively in saltwater pools, ensuring reliability and efficiency over time.
- Built for Harsh Weather: Constructed from galvanized steel and equipped with an evaporator shield, this heat pump is protected against harsh weather conditions, providing consistent operation year-round.
$999.99
Buy on Amazon
SaleBestseller No. 5
MICOE 35000 BTU Inverter Pool Heater for Above Ground and Inground Pool Up to 24ft/12000 Gallons, Electric Swimming Pool Heat Pump with APP-Scheduled Heating and Cooling, 220-240V
- Large Heating Capacity: 35000 BTU high-efficiency heating system designed specifically for 8-24ft (12000 gallon) above ground or inground pools.Corrosion-resistant titanium heat exchanger efficiently heats filtered saltwater
- Extend the Swimming Season : Designed for above ground pools, the micoe pool heater operates in 32°F to 109°F and heats water to 104°F under optimal conditions, extending your pool season through early spring and late fall
- Smart Control: Adjust temperature and schedule heating/cooling via control panel or app. For optimal pool temperature, start 12 hours in advance. Heating range: 46-104°F; Cooling range: 45-82°F. Features auto-defrost function
- Energy-Saving Professional: Harnessing a advanced Mitsubishi compressor and a corrosion-resistant titanium heat exchanger, our air-source pool heater delivers 50% faster heating while reducing your energy costs by 40%
- Quiet Operation : Maintains peaceful family swim time with near-silent 52dB noise level，the pool heaters for inground pools ensure zero disturbance for you and your children even at night
$1,161.21
Buy on Amazon
Bestseller No. 6
TURBRO 18,000 BTU Swimming Pool Heat Pump, Electric Pool Heater for Above-Ground Pools and Spas up to 6,000 Gallons, Titanium Heat Exchanger, 5.5 COP, IPX4-Waterproof, 110-120V, Manatee M18
- Extended Swim Seasons: Heat or cool your pool to maintain comfort from spring to fall; enjoy programmable timer functions; cooling temp range of 46-82°F and heating temp range of 59-104°F; set your desired water temp in ambient temp from 41-109.4°F
- Cost-Effective Performance: Delivers 18,000 BTU output with a 5.5 COP rating; air source technology utilizes ambient heat for outstanding efficiency, which saves up to 40% on energy costs compared to natural gas heaters
- Built to Perform: Advanced titanium heat exchanger improves heat transfer efficiency while resisting corrosion to be compatible with saltwater pools; includes a four-way valve for seamless switching between heating and cooling modes
- Universal Pool Compatibility: Compact and portable design works great with inflatable pools, frame pools, small spas, and in-ground pools; fits round pools up to 16 ft or rectangular pools 12x20 ft; suitable for pools up to 6,000 gal
- Quick Setup: Includes hose clamps, hose connectors, drain outlet adapter, and a detailed user instruction; just connect the hoses, plug it in, and start using with a simple panel, no professional help required; water hoses and pool filters not included
Bestseller No. 7
Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas
- 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
Bestseller No. 8
Full Inverter Heat Pump for Hot Tub and Bath, 78000BTU Electric Swimming Pool Heater, 25000 Gallons, for Above Ground and In ground Pools, WiFi Capable Timer, Heating and Cooling, Defrosting, 220-240V
- 【Extend Your Swim Season】This full-inverter pool heater is designed to maintain comfortable water temperatures across varying weather conditions, helping extend your swim season into early spring and late autumn. Precision control ensures stable and efficient water heating for hot tubs and swimming pools.
- 【Efficient Heating & APP Control】 Built for reliable and fast temperature rise, this unit supports pools up to 25,000 gallons. Adjust temperature settings, set schedules, and manage operation through the integrated app or control panel for convenient, remote pool-side management.
- 【Full Inverter Energy-Saving Technology】Equipped with a full DC inverter compressor, the system intelligently adjusts output according to ambient temperature and water flow. This maintains steady heating performance while helping reduce overall energy consumption.
- 【Low-Noise Operation & Cold-Weather Support】Operating at just 41 dB, the heater ensures quiet performance around your pool area. Its advanced low-temperature operation support helps maintain consistent heating during cooler seasons for uninterrupted use.
- 【Reliable Warranty & Dedicated Support】We provide a 3-year warranty along with professional 24/7 customer assistance. If you ever need help, our support team is ready to ensure your pool heater continues delivering dependable performance year-round.
$2,199.99
Buy on Amazon
Bestseller No. 9
Aquastrong Inverter Swimming Pool Heat Pump, 35,000 BTU 9,000 Gallons Electric Pool Heater for Above Ground and Inground Pool, WiFi Capable Timer, Heating and Cooling Pool Heater 120V
- Extend Your Swim Season: The pool heat pump features a dual-mode heating and cooling system that maintains optimal water temperatures year-round. Precision control ensures heating from 47–104℉ and cooling from 47–83℉, allowing you to enjoy extended swimming sessions through autumn’s crisp chill and spring’s cool mornings.
- Rapid Heating & APP Control: Engineered for speed and efficiency, it delivers 35,000 BTU warmth in hours, perfect for large pools, up to 9,000-gallon systems, or chilly climates. Take full control via the app & control panel. Adjust temperatures remotely, track energy use, and program heating schedules to fit your lifestyle.
- Inverter Energy Saving: Intelligent heat pump system featuring full DC variable frequency technology delivers 15.8 COP for maximum heating output. Adaptive frequency conversion algorithm dynamically adjusts power in real-time, achieving 70% energy savings over traditional electric heating and 40% higher efficiency than gas systems.
- Ultra-Quiet & Auto-Defrost: Variable frequency technology reduces operational noise to just 48 dB, paired with an intelligent defrosting system featuring automatically initiated cycles every 40 minutes that complete the process in just 5 minutes, ensuring uninterrupted winter operation with continuous heating performance.
- Easy to Assemble: Our heat pump features 3 versatile connection options designed to integrate with all pools, (1.25" & 1.5" hose adapter, 1.5" adapter conversion kit, 1.5" PVC pipe converter), ensuring hassle-free installation and optimal performance. Enjoy peace of mind with our 3-year warranty. Dive into comfort and reliability.
$1,499.00
Buy on Amazon
Bestseller No. 10
XCLBTFDC 1800W Immersion Water Heater Portable Electric Bathtub & Inflatable Pool Submersible Water Heater with Thermostat, GFCI for Bucket, Swimming Pool, Baptistry, Sap, Above Ground Pool & Hot Tub
- Precision Thermostat and User-Friendly Design: Thermostat Immersion Water Heater features a temperature probe made from corrosion-resistant material, with a length matching the 118-inch cable, making it ideal for setups where the socket is far away. The temperature can be precisely controlled within ±0.1°C. It’s easy to operate; simply press and hold the SET button for 3 seconds to adjust the temperature using the up and down buttons. The heater supports both Fahrenheit and Celsius readings and comes with a user manual for guidance. Additionally, the bottom of the Heater rod includes a silicone gasket to prevent overheating from burning through the bottom of inflatable pools.
- GFCI Leakage and Overload Protection: Safety is the top priority for this 100% waterproof Immersion water heater, which features GFCI (Ground Fault Circuit Interrupter) leakage protection that automatically cuts off power in the event of a leak. Additionally, it has an overload protection function that activates if your home’s aging wiring cannot support the heater's load, reducing the risk of accidents during extended unattended heating sessions.
- Fast Heating, Safe Design & Easy Cleaning: This submersible immersion heater combines rapid performance with thoughtful safety features. Made of 316 stainless steel, it heats water quickly and evenly—reaching optimal temperature in just 1 second while reducing preheating time. The fully waterproof design, paired with a silicone-wrapped power cable, provides reliable insulation against water exposure and electrical hazards. Its smooth stainless steel surface resists scale buildup for easy cleaning and long-term stable heating. For added protection, the bottom of the heater rod includes a silicone gasket that helps prevent overheating damage to soft-sided containers like inflatable pools.
- High-Quality Materials & Corrosion Resistance: Made entirely from thickened seamless 316 stainless steel, this salt‑water pool heater delivers outstanding corrosion resistance, ensuring reliable performance during long‑term submersion and continuous use. Its robust 316 stainless‑steel construction resists rust and degradation over time. The power cable is insulated with corrosion‑resistant rubber, providing excellent electrical insulation and dependable protection in demanding environments for safe, long‑lasting operation.
- Portable & Multifunctional Use: Flexible, powerful, and truly portable, this hot tub and pool heater stands out from bulky traditional heaters. Its compact design allows you to easily move it anywhere and even take it outdoors for on-the-go heating. Ideal for heating liquids in various environments — including inflatable pools, baptismal pools, bathtubs and hot tubs (soaker and large tubs), swimming pools (large and saltwater), ponds, aquariums, and livestock drinking troughs. Perfect for both indoor and outdoor use.
$169.99
Buy on Amazon
Best Swimming Pool Heaters Buying Guide
Before choosing the best swimming pool heaters you should consider the following options:
1. Energy Efficient Pool Heaters: One of the most important things to consider when choosing a swimming pool heater is energy efficiency.
The Department of Energy estimates that more than 25 percent of the energy used in a typical pool is lost through dissipation.
This can be reduced by choosing a more energy-efficient option, such as a heat pump.
Heat pumps move heat from one place to another, typically from the environment to the pool, using a fan and a heat exchange system.
They are more efficient than other types of heaters, reducing energy consumption by up to 75 percent and potentially cutting your energy bills by up to 30 percent.
2. Pool Volume: The size of your pool will also affect what type of pool heater you should choose.
Heat pump heaters are best for pools measuring up to 50,000 gallons. Above that size, you may need to look at other options.
Gas pool heaters, for example, are best for pools with a volume of 20,000 gallons or less. If your pool is larger, you will likely need two heaters to ensure the water is heated evenly.
3. Pool Shape and Location: The shape of your pool will also impact your choice of heater. If your pool has a very shallow end, for example, you may want to consider a heat pump, which is best suited to shallow pools.
You will also need to consider your climate. In cold climates, heat pumps are the most energy efficient option, while in milder climates, it is possible to use heat pumps all year round.
Other factors to consider include how efficiently heat is absorbed into the water, which depends on factors such as the depth and temperature of the water.
If your pool is in a shaded area, you will also need to look at heaters with a larger capacity to ensure the pool is heated evenly.
4. Pool Use: The type of pool heater you choose will also depend on how you plan to use your pool. If you plan to use it for swimming, for example, heat pump heaters are the most efficient option.
If you plan to use your pool for parties and entertaining, you may want to look at heaters that have a faster recovery rate.
What else you should know about best swimming pool heaters
1. What are the different types of swimming pool heaters?
There are three main types of swimming pool heaters: gas, electric, and solar.
2. How do I size a swimming pool heater for my pool?
A good rule of thumb is to select a heater that is able to raise the temperature of your pool by 20 degrees Fahrenheit in 8 hours or less.
3. How do I install a swimming pool heater?
There is no one-size-fits-all answer to this question, as the installation process for a swimming pool heater can vary depending on the type and model of heater you have. However, in general, you will need to connect the heater to the pool’s filtration system and then to a power source. You may also need to install a gas line if your heater runs on natural gas.
4. How do I maintain my swimming pool heater?
Swimming pool heaters require regular maintenance to function properly. The most important thing to do is to keep the filter clean. The filter keeps the water clean and free of debris. It also helps to circulate the water.
Conclusion
On the market, there are numerous best swimming pool heaters. Hopefully, the list of the top ten best swimming pool heaters will save you time researching and deciding on the best one for you.