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
Bestseller No. 1
AQUASTRONG Inverter Swimming Pool Heat Pump,Pool Heater for Above Ground and Inground Pool Heating Smart WiFi Control and Cooling Pool Heater Pools Up to, 9000 Gallons
- 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.
Bestseller No. 2
AQUASTRONG Inverter Swimming Pool Heat Pump,Pool Heater for Above Ground and Inground Pool Heating Smart WiFi Control and Cooling Pool Heater Pools Up to, 7000 Gallons
- Strong Heating, Slim Design: Aquastrong 22,000 BTU newly upgraded compact model features a smaller size and more powerful heating output!Ideal for above-ground pools, it can heat up to 7000 GAL of water, easily meeting the heating needs of most above-ground pools on the market.Its compact design takes up less space and offers greater mobility.Start your exquisite pool lifestyle with the HEX022MINI.
- Year-Round Swimming Enjoyment: The AQUASTRONG HEX022MINI pool heat pump supports both cooling and heating modes, maintaining a comfortable and pleasant water temperature no matter spring, summer, autumn or winter.Aquastrong HEX022MINI compact unit comes with a built-in WiFi smart control module for mobile remote operation, allowing you to adjust water temperature anytime and anywhere, greatly improving convenience and overall user experience.
- Inverter Energy Efficiency: The AQUASTRONG HEX022MINI heat pump uses full DC inverter technology with 7.5 COP Its smart frequency conversion adjusts power in real time, saving 70% energy vs. traditional electric heating and 40% more efficient than gas systems. Using a pool cover helps retain heat and lower energy use further, reducing running costs while ensuring stable performance.
- Quiet Inverter Heating: Upgraded core for quieter operation lowers noise to only 38dB, combined with an intelligent defrosting system that automatically runs cycles every 40 minutes and finishes defrosting in just 5 minutes, guaranteeing stable winter operation and consistent heating performance.
- Simple Installation & Reliable Support:AQUASTRONG HEX022MINI heat pump includes 1.25" hose adapters and 1.5" conversion kits for hassle-free setup, which can be finished in less than 10 minutes. It features multi-mode intelligent control via the control panel, plus a 3-year full warranty and lifetime technical support.
Bestseller No. 3
AQUASTRONG Inverter Swimming Pool Heat Pump,Pool Heater for Above Ground and Inground Pool Heating Smart WiFi Control and Cooling Pool Heater Pools Up to, 7500 Gallons
- 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 22,000 BTU warmth in hours, perfect for large pools, up to 7000-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.
Bestseller No. 4
Vidapool 18,000 BTU Swimming Pool Heater 7.5 COP Electric Pool Heat Pump for Above Ground and Inground Pools Heating and Cooling Smart WiFi Control Pools Up to,6500 Gallons
- High-Power Heating & Versatile Performance: Vidapool pool heater equipped with an upgraded high performance compressor and titanium heat exchanger, this heater efficiently heats both freshwater and saltwater pools. With a maximum output of 18,000 BTU, it reliably warms pools up to 6,500 gallons. It delivers fast, stable heating from 59–104°F and cooling from 46–82°F. The included 16.5ft GFCI plug makes it ideal for small above-ground pools.
- Smart Control Longer Swims:Engineered with integrated WiFi in its slim body,it brings full remote control to small pool owners. With both heating and cooling modes, it effectively extends your swimming season from early spring to late autumn. Simple app adjustments deliver consistent, comfortable water temperature, maximizing your pool enjoyment and quality of life all year round.
- High Efficiency & Ultra-Quiet Performance:Say goodbye to high electricity bills. The Vidapool pool heat pump delivers an impressive 5.5 COP, utilizing air-source technology to heat your pool with minimal power consumption. Running at only 38dB, it provides ultra-quiet operation, letting you enjoy your pool in peaceful comfort.
- Hassle‑Free Installation:Featuring 1.25" & 1.5" hose adapters plus a 1.5" conversion kit, this swimming pool heater fits most above-ground pools. Installation is quick and tool-free, allowing you to set it up manually with ease. Our dedicated support team is always ready to assist with any setup questions.
- Optimal Tips:To ensure your heat pump delivers peak performance and efficiency, please pay close attention to your pump’s flow rate. We recommend a minimum flow rate of 530 GPH. Excessively high flow may prevent water from fully absorbing heat, reducing efficiency. Using a pool cover will also help retain warmth and save energy. Our team is ready to assist with any further inquiries.
Bestseller No. 5
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. 6
Raypak 206,000 BTU Digital Electronic Ignition Natural Gas Pool Heater
- 206,000 BTU Output with Digital Control: Delivers reliable heating capacity ideal for mid to large pools while offering an intuitive digital interface for temperature settings and diagnostics.
- Cast-Iron Construction & Bronze Components: Heavy-duty cast-iron headers and bronze manifolds deliver durability and corrosion resistance, built to withstand pool chemicals and continuous operation.
- Electronic Ignition & Self-Diagnostic System: Features automatic spark ignition and built-in diagnostic feedback to streamline operation, troubleshoot issues, and ensure safe performance.
- Flow & Condensation Protection Built In: Designed with internal bypass and flow regulation to protect the heat exchanger from low-flow condensation and maintain consistent heating efficiency.
- Service-Friendly Design & Install Features: Equipped with standard plumbing ports, removable access panels, and weather-resistant housing to simplify installation and field maintenance.
Bestseller No. 7
Hayward Pool Heater for Inground Pools Universal H-Series 150,000 BTU (Natural Gas Pool Heater) Pool and Spa Heater W3H150FDN Replacement for H150FDN
- EASY TO USE: Intuitive inground pool heater control panel enables easy operation and maintenance. The digital LED display helps maintain pool water temperature while monitoring pool water heater performance with self-diagnostic capabilities
- MULTIPLE COVERAGE OPTIONS FOR POOLS AND SPAS: This gas pool heater and pool and spa heater suits in-ground pools and spas up to 450 sq ft with a natural gas connection; additional models cover 600, 750, or 1,200 sq ft
- ENERGY SAVING AND BUILT TO LAST: Efficiently designed pool heater for inground pools helps deliver consistent hot water for swimming pools, reduce pump run time for energy savings, and protect against corrosion caused by unbalanced water chemistry
- SIMPLE INSTALLATION: This 150,000 BTU Hayward natural gas pool heater allows flexible gas and electric connections on the right or left side, with an H-Series built-in 3/4" gas connection for easier fuel line setup
- LOW ENVIRONMENTAL IMPACT: Hayward gas pool heaters for inground use are certified for low-NOx emissions and eco-friendly operation, reducing circulation pump run time while delivering a reliable swimming pool heater solution for inground pools
Bestseller No. 8
Aquastrong 110,000 BTU Top Discharge Inverter Swimming Pool Heat Pump, Electric Pool Heater for Above Ground and Inground Pool, WiFi Capable Timer, Heating and Cooling Pool Heater for 32000 Gallons
- Upgraded Top Air Flow Design: Aquastrong Top Discharge pool heat pump efficiently covers the heating needs of most above-ground pools. Unlike traditional side-vent models, the top vent design frees you from space limitations, making it perfect for tight areas. Built for greater efficiency and long-lasting durability, it delivers reliable heating even in compact installations.
- High-Power Performance: Featuring an upgraded titanium heat exchanger, this swimming pool heat pump is ideal for saltwater pools and efficiently heats up to 32,000 gallons. Boasting 110,000 BTU of powerful heating.
- Eco Inverter Performance: Featuring advanced full inverter technology, the Aquastrong Top Discharge pool heat pump automatically shifts to low-power operation once your target temperature is reached. This maintains consistent comfort while cutting energy use and minimizing operational issues. Its redesigned structure with vertical air intake achieves an impressive 12 COP, delivering efficient, eco-friendly performance for long-term savings.
- Quieter Pool, Better Living: This pool heater delivers stronger heating power and hassle-free installation, running at an ultra-quiet 37dB for truly peaceful pool time. By maintaining consistent, comfortable water temperature across every season, it lets you relax, unwind, and fully savor your pool throughout the entire year.
- Easy Setup, Smooth Operation: This pool heater includes 2" adapters and a 2" to 1.5" conversion kit, compatible with most pools for effortless installation. Our professional team provides full setup support to ensure everything goes smoothly. A pool cover helps maximize heating efficiency while keeping your pool clean for more enjoyable use.
Bestseller No. 9
VARMINPOOL Pool Heat Pump 16000 BTU, Electric Pool Heater for Above Ground Pools up to 5500 Gallons, Energy Efficient Heat Pump Pool Heater with WiFi Control,110V- V5
- Perfect Pool Heater for Above Ground Pools: 16000 BTU pool heat pump designed for above ground pools up to 5,500 gallons (10–14 ft). Ideal for inflatable, steel frame, and backyard family pools, it helps extend your swimming season with consistently comfortable water temperature.
- Energy-Efficient Heating with Smart Temperature Control: Save energy compared with traditional pool heaters. This electric pool heat pump automatically adjusts operation based on water temperature and system conditions, delivering efficient heating while reducing unnecessary electricity consumption.
- 110V Plug and Play – No Electrician Needed: Powered by standard 110–120V household outlets, this plug and play pool heater installs in under 30 minutes with basic hose connections. No special wiring or professional installation required—perfect for residential use.
- Titanium Heat Exchanger for Saltwater & Chlorine Pools: Built with a corrosion-resistant pure titanium heat exchanger, this pool heater works safely with both saltwater and chlorine systems. Ensures long-lasting durability and efficient heat transfer for reliable performance.
- Smart WiFi Control for Easy Pool Management: Control your WiFi pool heater anytime via mobile app. Adjust temperature, set schedules, and monitor operation remotely. For best performance, we recommend installing within 10 meters (33 ft) of your WiFi router for a stable connection.
Bestseller No. 10
WARMBLU H5 Swimming Pool Heat Pump 18,000BTU 5,000 Gal High Efficiency COP4.1 Energy Save 45% Above Smart WiFi Control 110V
- SpringBreath 1.0 Heating System with Quantifiable Results---Built to efficiently handle large pools up to 5,000 gallons. H5, centered on a corrosion-proof pure titanium heat exchanger, delivers an industry-leading the Max COP up to 4.1. This isn't just heating; it's high-efficiency engineering for rapid, reliable temperature rise.
- Drastically Cuts Energy Costs---Intelligent Chip and Dynamic Algorithm provide intelligent inverter control, constantly optimizing performance for unwavering reliability. The result is dramatically lower operating costs compared to gas or conventional electric heaters, maximizing your long-term investment.
- Ultimate Ease of Use & Installation---Simplicity from start to finish. Enjoy a worry-free, straightforward installation process, followed by effortless daily control via the intuitive mobile App or the sleek, modern touch panel at home. Total convenience is at your fingertips.
- Sub-50 dB Quiet Operation---Protect the tranquility of your property. With a noise level below 50 dB, its operation is quieter than the hum of a standard refrigerator. You'll get powerful heating without the disruptive noise, ensuring your backyard remains a peaceful retreat.
- Engineered Safety: Water & Electricity Fully Separated---Invest with absolute confidence. The core of our design is a fully isolated system that guarantees complete separation of water and electrical components. It's the failsafe, industrial-grade protection you require for total peace of mind.
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.