Water is much colder than you might expect. The temperature can vary depending on the season, the location, and the depth, but even in the middle of summer, the temperature of your pool water is likely to be around 68 F.
In order to enjoy your pool for swimming, you need to heat the water to at least 80 F, but most people prefer the water to be in the mid-to high 80s.
The type of pool you have and how you heat it will affect how much it costs to heat your pool water.
We researched dozens of the most popular pool heaters currently available, evaluating them based on effectiveness, longevity, and ease of installation and use. Our top pick, the Hayward ProSeries SP1515 15,000-BTU Pool Heater, is easy to install and ready to use right out of the box.
Here are the best pool heaters to keep your pool warm, comfortable, and ready for summer.
Best Swimming Pool Heat Pumps: Editor Recommended
Our Editor’s Best Swimming Pool Heat Pumps Reviews
- CLEAN AND GREEN: The FH270 is powered by clean electricity, reducing the harmful environmental effects and cost of traditional heaters that use natural gas or propane. Our pumps instead move heat from the air into the water, which saves you money and is a breeze to maintain
- COMPATIBLE WITH: In ground pools up to 15,000 gallons and above ground pools up to 27 foot round or 18 by 33 foot oval. As with all heat pumps, we recommend using in a humid climate down to 50 degrees for best performance. Dry climates are better served by a traditional gas heater
- HIGH EFFICIENCY: Utilizing high-pressure differential compressors and titanium heat exchangers, FibroPool heat pumps are meticulously designed to be the most energy efficient in their class. You can rest comfortably knowing your family will enjoy years of late season swimming without feeling a squeeze on your electric bill
- RUGGED DESIGN: Enamel-coated steel chassis is designed to withstand outdoor elements season after season. Slim profile measures just 13"x38"x27", offering a wide range of mounting options. Conveniently installs with included 1 1/2 inch compression fittings on a 240 volt circuit
- EASY OPERATION: Digital control panel with an easy-to-read display offers convenient temperature setting and monitoring. Optional extension cable allows you to mount the control panel in a location that works best for you
- 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 75,000 BTU warmth in hours, perfect for large pools, up to 21,000-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 53 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.
- 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: Utilizes advanced air-source pool heater technology that heats 50% faster than standard electric pool warmer while reducing 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
- Impressive performance: Pool heater pump with a high-power compressor, titanium heat exchanger max output of 16000 BTU for above pool up to 5000 gallons, heat from 59-104°F and cool from 46-82°F
- Multi-Season use and WiFi control: Electric pool heater has both heating and cooling mode, allowing us to extend swimming season by months and adjust settings via WiFi and set timed on/off anywhere by a mobile app
- Engineering research and development: Limited electrical input, achieving a COP of 4.3, 120v pool heater absorbs energy from the air and transfers it to the water, whether fresh or salt water
- Quiet operation: Equipped with additional soundproofing, above ground pool heater operates at a low 50dB noise level, allowing us to enjoy a peaceful experience
- Easy installation: Pool heater comes with two DN32-38 mm connectors and a 118 inch power cord, making installation a breeze. For any inquiries during use, refer to the manual or our store for assistance
- 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
- ♨️ Full Frequency Conversion Design: WOPOLTOP 30KW pool type heat pump is suitable for both above ground and underground water pools, with a recommended maximum pool capacity of 26000 gallons. The compressor and fan adopt frequency conversion technology to minimize power consumption and eliminate the need for frequent on/off cycles, thereby saving energy.
- ♨️ Advanced Compressor: Equipped with high-quality compressors, the 100000 BTU heat pump can provide excellent heating power in different working conditions, with a COP of up to 6.8, ensuring first-class performance and stability. The fully DC variable frequency fan motor and compressor can adjust the heating capacity within the maximum range, achieving the most efficient operation.
- ♨️ WiFi Control for Heating and Cooling: The heat pump has a dual function of heating and cooling, and the wireless WiFi control function allows for remote and complete control of the heating system of the swimming pool. Seamless adjustment of settings and monitoring of temperature levels through smartphones or tablets brings you endless convenience and peace of mind.
- ♨️ Noise Reduction and Vibration Reduction Design: The high-quality compressor adopts anti vibration technology, and the set includes four sound insulation pads supported by sound insulation materials. All connection points are equipped with additional sound insulation materials, effectively reducing vibration and damping noise. Maintain a noise level of around 47~58 decibels within a distance of approximately 1 meter.
- ♨️ High Quality ABS Material: The casing of the WOPOLTOP heat pump is made of high-quality ABS material, ensuring high corrosion resistance, rust resistance, durability, and lightweight. It can withstand outdoor conditions such as sunlight and rain well (attention should be paid to preventing lightning strikes), effectively extending the service life of the equipment.
- CLEAN AND GREEN: The FH135 is powered by clean electricity, reducing the harmful environmental effects and cost of traditional heaters that use natural gas or propane. Our pumps instead move heat from the air into the water, which saves you money and is a breeze to maintain
- COMPATIBLE WITH: In ground pools up to 7,500 gallons and above ground pools up to 18 foot round or 12 by 24 foot oval. As with all heat pumps, we recommend using in a humid climate down to 50 degrees for best performance. Dry climates are better served by a traditional gas heater
- HIGH EFFICIENCY: Utilizing high-pressure differential compressors and titanium heat exchangers, FibroPool heat pumps are meticulously designed to be the most energy efficient in their class. You can rest comfortably knowing your family will enjoy years of late season swimming without feeling a squeeze on your electric bill
- RUGGED DESIGN: Enamel-coated steel chassis is designed to withstand outdoor elements season after season. Slim profile measures just 16"x40"x24", offering a wide range of mounting options. Conveniently installs with included 1 1/2 inch compression fittings
- EASY OPERATION: Digital control panel with an easy-to-read display offers convenient temperature setting and monitoring. Optional extension cable allows you to mount the control panel in a location that works best for you
- This all-DC inverter heat pump, powered by electricity and equipped with an inverter compressor, features a variable-speed fan motor that transfers energy from the air to the water, ensuring you enjoy your pool season in the most economical and efficient way.
- With 35,000 BTU, it is suitable for in-ground pools up to 7,000 gallons and above-ground pools, offering both cooling and heating functions that operate between 5 to 109.4 ℉, maintaining your pool temperature consistently comfortable. It boasts a COP of up to 6.8 for heating and an EER of up to 6.7 for cooling, with further improved efficiency if the pool is equipped with a cover.
- A titanium heat exchanger resistant to chemicals and corrosion from seawater is essential, featuring a drain outlet on the side to empty internal water during long periods of inactivity, prolonging the equipment's lifespan. The titanium heat exchanger supports three adapters, including the included 1.5 inch PVC pipe adapter, as well as compatibility with 1.25 & 1.5 inch hose adapters and a 1.5 inch adapter conversion kit (Additional purchase required).
- Equipped with a built-in WIFI module, the device can be connected to an app for remote control from anywhere. An optional extension cable allows you to mount the control panel in your desired location.
- The equipment requires an input voltage of 220-240V, with a maximum input power of 1.78kW and a maximum voltage of 8.3A. For self-installation, one must have a certain level of electrical knowledge or seek installation by a certified electrician, and select a 15A circuit breaker.
- Powerful Performance: Pool heater pump with a high-power compressor, titanium heat exchanger, max 16,000 BTU output for pools up to 5,000 gallons. Heats 59-104°F, cools 46-82°F
- Multi-Season and WiFi Control: 120v pool heater Heats and cools to extend swim season. Adjust settings via WiFi and schedule on/off anytime with the mobile app
- Efficient Design: Electric pool heater with 4.3 COP absorbs air energy to heat fresh or saltwater, using minimal electricity
- Quiet Operation: Above ground pool heater enhanced soundproofing keeps noise at just 50dB, ensuring a peaceful swim
- Easy Setup: Varpoolfaye pool heater includes two DN32-38mm connectors and a 118-inch power cord for quick installation. For help, check the manual or contact us
- NEXT GEN TECHNOLOGY: Based on our best selling FH270, the FH285 heat pump has been upgraded with next generation, full inverter technology, allowing it to warm your pool from even lower temperatures while using even less electricity
- CLEAN AND GREEN: The FH285-I is powered by clean electricity, reducing the harmful environmental effects and cost of traditional heaters that use natural gas or propane. Our pumps instead move heat from the air into the water, which saves you money and is a breeze to maintain
- COMPATIBLE WITH: In ground pools up to 17,500 gallons and above ground pools up to 27 foot round or 18 by 33 foot oval. As with all heat pumps, we recommend using in a humid climate down to 55 degrees for best performance. Dry climates are better served by a traditional gas heater
- RUGGED DESIGN: Weather resistant chassis is designed to withstand outdoor elements season after season. Compact profile measures just 26"x26"x31", offering a wide range of mounting options. Conveniently installs with included fittings
- EASY OPERATION: Digital control panel with an easy-to-read display offers quick temperature setting and monitoring. Wi-Fi and app integration allow you to make adjustments from the convenience of your phone
Best Swimming Pool Heat Pumps Buying Guide
Before choosing the best swimming pool heat pump you should consider the following options:
1. Power Consumption: One of the most important aspects to consider when buying a swimming pool heat pump is power consumption.
The higher the power consumption, the higher your electricity bills will be. The ideal pool heat pump will have a low power consumption so that your bills don’t go up.
In general, the more efficient the heat pump, the higher the annual operating cost. This is because the energy is extracted from the surrounding environment, which has a low temperature, and therefore requires more energy input to heat the pool water.
You can find the power consumption of a heat pump in two ways. First is the energy efficiency ratio (EER). The higher the EER, the lower the operating cost.
The second way is the input rate measure (IM). The lower the IM, the lower the operating cost.
For example, if a heat pump has an EER of 8 and an IM of 1.8, then the operating cost will be half that of a heat pump with an EER of 10 and an IM of 2.0.
The higher the EER or IM, the lower the operating cost. Therefore, the ideal heat pump will have a low EER and IM.
Things to note:
The EER is calculated based on the pool water temperature of 35 degrees Celsius and the air temperature of 25 degrees Celsius. Therefore, the EER is different from the energy efficiency label (EFL) on the heat pump.
The input rate measure is calculated based on the water temperature of 20 degrees Celsius and the air temperature of 30 degrees Celsius. Therefore, the IM is different from the energy label on the heat pump.
The EER and IM are calculated based on the standard operation mode of the heat pump, and therefore, the real energy consumption will be higher than the standard operation.
2. Capacity: You need to purchase a heat pump that can meet the temperature requirements of your swimming pool. The ideal heat pump will have a large capacity so that it can heat the water in a short period of time.
The larger the capacity, the higher the energy input and operating cost. Therefore, you should purchase a heat pump with a capacity that meets your needs but doesn’t exceed them.
What else you should know about the best swimming pool heat pumps
1. What are the best swimming pool heat pumps?
Some of the best swimming pool heat pumps on the market include the Hayward HeatPro HP21104, the Pentair UltraTemp 70, and the Jandy LXi.
2. How do swimming pool heat pumps work?
A swimming pool heat pump is a device that uses the heat from the air to heat the water in a swimming pool. The heat pump consists of a compressor, a condenser, and an evaporator. The compressor pumps the refrigerant through the system. The refrigerant absorbs heat from the air and transfers it to the water. The water is then circulated through the pool.
3. How do I choose a swimming pool heat pump?
There are a few things you need to consider when choosing a swimming pool heat pump:
1. The size of your pool – you need to make sure the heat pump is powerful enough to heat your pool.
2. The climate you live in – heat pumps work best in warmer climates.
3. Your budget – heat pumps can be expensive, so you need to make sure you can afford the one you want.
4. How do I install a swimming pool heat pump?
Most swimming pool heat pumps come with easy-to-follow installation instructions. In general, you will need to install the heat pump near your pool, connect it to a power source, and then connect it to your pool’s filtration system.
5. How do I maintain a swimming pool heat pump?
The best way to maintain a swimming pool heat pump is to regularly check and clean the filters, as well as the coils. You should also make sure that the pump is properly lubricated and that the unit is free of any debris.
Conclusion
On the market, there are numerous best swimming pool heat pumps. Hopefully, the list of the top ten best swimming pool heat pumps will save you time researching and deciding on the best one for you.