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10 Best Electric Pool Heaters 2025 in the United States

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Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Our Top Picks

#1

Winner

Aquastrong 75,000 BTU Inverter Swimming Pool Heat Pump, 21,000 Gallons Electric Pool Heater for Above Ground and Inground Pool, WiFi Capable Timer, Heating and Cooling Pool Heater 220V

Rating
9.8
Chosen by1,323
Heating Capacity (BTUs)
Energy Efficiency

Most important from
26 reviews

Heating Capacity (BTUs)
Delivers impressive heating performance, raising pool temperature significantly even when outdoor temps are as low as 656F.
Energy Efficiency
Optimizing water flow with additional accessories like a flow meter and diverter can maximize heating efficiency.

The Aquastrong 75,000 BTU Inverter Pool Heat Pump stands out for its strong heating capacity, suitable for large pools up to 21,000 gallons. This means it can quickly warm your pool water even in cooler climates, extending your swimming season comfortably. Its dual heating and cooling modes provide flexibility, allowing you to both heat the water in cold weather and cool it on hot days, a feature not always found in similar products. The inverter technology is a big plus, as it adjusts power use efficiently, resulting in up to 70% energy savings compared to traditional electric heaters. This also helps reduce your electricity bills over time. The heat pump operates quietly at about 53 decibels, which won't disturb your outdoor relaxation. Additionally, it includes an intelligent auto-defrost system that keeps it running smoothly in winter by preventing frost buildup automatically.

Control-wise, it offers WiFi connectivity and an app, letting you adjust temperature settings and program schedules remotely, adding convenience especially if you’re frequently busy or away from home. The unit’s size and weight (218 pounds, about 18×29×43 inches) make it fairly substantial, so you’ll need adequate space for installation, but it comes with versatile connection adapters to fit different pool setups easily. Made with cast iron, the build quality suggests good durability, supported by a 3-year warranty for peace of mind.

The relatively large size and weight might require professional help during installation. While the product excels in efficiency and comfort features, it requires a 220V power supply, which may need specific electrical arrangements if your home doesn't already support it. This heat pump is a solid choice for pool owners looking for efficient, quiet, and year-round temperature control, especially for larger pools and those who value smart app-based operation.

Rating
9.8
Chosen by1,323
Heating Capacity (BTUs)
Energy Efficiency

Most important from
26 reviews

Heating Capacity (BTUs)
Delivers impressive heating performance, raising pool temperature significantly even when outdoor temps are as low as 656F.
Energy Efficiency
Optimizing water flow with additional accessories like a flow meter and diverter can maximize heating efficiency.
#2

Aquastrong 35,000 BTU Inverter Swimming Pool Heat Pump, 9,000 Gallons Electric Pool Heater for Above Ground and Inground Pool, WiFi Capable Timer, Heating and Cooling Pool Heater 120V

Rating
9.6
Heating Capacity (BTUs)
Energy Efficiency
Size and Installation Requirements

Most important from
26 reviews

Heating Capacity (BTUs)
Heats the pool remarkably fast, raising water temperature by 15 degrees in just 24 hours.
Energy Efficiency
Energy efficiency is outstanding with a high COP of 15.2, delivering quicker heating at lower operating costs.
Size and Installation Requirements
Installation is straightforward with clear instructions and multiple plumbing connection options.
Control Features
App and touchscreen controls make adjusting settings and scheduling temperatures convenient from anywhere.
Durability and Build Quality
The unit includes a winterizing drain port, simplifying seasonal maintenance.
Noise Level
The heat pump operates quietly around 48 decibels, preserving backyard tranquility.

The Aquastrong 35,000 BTU Inverter Swimming Pool Heat Pump is designed to efficiently heat pools up to 9,000 gallons, suitable for both above-ground and inground pools. It provides strong heating capacity to quickly warm your water and includes a cooling function for comfortable swimming temperatures throughout the year. The inverter technology dynamically adjusts power use to save about 70% energy compared to traditional electric heaters and operates more efficiently than many gas heaters, resulting in lower electricity bills while maintaining a cozy pool environment.

Installation is straightforward with multiple connection options compatible with common pool plumbing sizes. The unit is manageable in size but weighs about 117 pounds, so assistance may be needed during setup. Constructed with durable materials like cast iron, the heat pump ensures long-lasting use. It operates quietly at around 48 decibels, preserving your backyard tranquility, and features an automatic defrost function to maintain performance during colder months.

Control is convenient through a smartphone app and an onboard panel, enabling remote setting adjustments and scheduling. Considering its efficient, year-round temperature control combined with easy app-based management and quiet operation, this heat pump offers a reliable solution for pool owners seeking consistent comfort.

Rating
9.6
Heating Capacity (BTUs)
Energy Efficiency
Size and Installation Requirements

Most important from
26 reviews

Heating Capacity (BTUs)
Heats the pool remarkably fast, raising water temperature by 15 degrees in just 24 hours.
Energy Efficiency
Energy efficiency is outstanding with a high COP of 15.2, delivering quicker heating at lower operating costs.
Size and Installation Requirements
Installation is straightforward with clear instructions and multiple plumbing connection options.
Control Features
App and touchscreen controls make adjusting settings and scheduling temperatures convenient from anywhere.
Durability and Build Quality
The unit includes a winterizing drain port, simplifying seasonal maintenance.
Noise Level
The heat pump operates quietly around 48 decibels, preserving backyard tranquility.
#3

Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas

Rating
9.4
Heating Capacity (BTUs)
Energy Efficiency
Size and Installation Requirements

Most important from
523 reviews

Heating Capacity (BTUs)
The heater warmed our pool from 65°F to 80°F overnight, making it perfect for extending the swimming season.
Energy Efficiency
Despite some installation challenges, the unit operates quietly and efficiently warms the pool, keeping it at comfortable temperatures.
Size and Installation Requirements
Installation can be complex and costly, involving extensive gas line work and professional help.
Control Features
The heater has a tendency to display the LO code and enter protection mode, requiring backwashing to reset.
Durability and Build Quality
A user praised Hayward for the product's longevity, having a similar model that lasted 17 years with minimal issues.

The Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater is a strong performer in the electric pool heater category. With a substantial heating capacity of 250,000 BTUs, it’s well-suited for heating both in-ground pools and spas. This model stands out with its energy efficiency, thanks to an industry-leading hydraulic design that reduces the circulation pump run time, leading to significant energy savings. The heater’s size (33.3 x 32.8 x 30.6 inches) and weight (165 pounds) are notable and may require professional installation due to its bulk.

However, the front-panel-only access and intuitive control pad simplify operation, service, and maintenance, making it user-friendly once installed. Durability is another strong point, with a cupro nickel heat exchanger that offers excellent protection against corrosion and premature failure, even in the face of unbalanced water chemistry. Additionally, it meets low NOx emission standards, making it environmentally friendly. Despite its higher rank, some users may find the upfront cost and potential installation challenges as drawbacks. This heater is highly suitable for those needing a reliable, efficient, and durable solution for their pool or spa heating needs.

Rating
9.4
Heating Capacity (BTUs)
Energy Efficiency
Size and Installation Requirements

Most important from
523 reviews

Heating Capacity (BTUs)
The heater warmed our pool from 65°F to 80°F overnight, making it perfect for extending the swimming season.
Energy Efficiency
Despite some installation challenges, the unit operates quietly and efficiently warms the pool, keeping it at comfortable temperatures.
Size and Installation Requirements
Installation can be complex and costly, involving extensive gas line work and professional help.
Control Features
The heater has a tendency to display the LO code and enter protection mode, requiring backwashing to reset.
Durability and Build Quality
A user praised Hayward for the product's longevity, having a similar model that lasted 17 years with minimal issues.

Buying Guide for the Best Electric Pool Heaters

Choosing the right electric pool heater can make a significant difference in your swimming experience, extending your pool season and ensuring comfortable water temperatures. When selecting an electric pool heater, it's important to consider several key specifications to ensure you get the best fit for your needs. Understanding these specs will help you make an informed decision and enjoy your pool to the fullest.
Heating Capacity (BTUs)Heating capacity, measured in British Thermal Units (BTUs), indicates the amount of heat the heater can produce. This is crucial because it determines how quickly and effectively the heater can warm your pool. Smaller pools or spas may require heaters with lower BTUs (50,000-100,000), while larger pools will need higher BTUs (200,000-400,000). To pick the right one, consider the size of your pool and how quickly you want it to heat up. Larger pools or those in cooler climates will benefit from higher BTU ratings.
Energy EfficiencyEnergy efficiency refers to how effectively the heater converts electricity into heat. This is important because a more efficient heater will cost less to operate over time. Look for heaters with high Coefficient of Performance (COP) ratings, which indicate better efficiency. A COP of 5.0 or higher is considered very efficient. If you use your pool frequently or for extended periods, investing in a more efficient model can save you money on energy bills.
Size and Installation RequirementsThe physical size of the heater and its installation requirements are important to consider, especially if you have limited space. Some heaters are compact and can be installed in tight spaces, while others may require more room for proper ventilation and maintenance access. Check the dimensions and installation guidelines to ensure the heater will fit in your designated area. If space is a concern, look for models specifically designed for smaller installations.
Control FeaturesControl features include the options available for setting and adjusting the heater's operation. Modern electric pool heaters often come with digital displays, programmable timers, and remote control capabilities. These features can enhance convenience and allow you to maintain precise control over your pool's temperature. If you prefer ease of use and advanced functionality, look for heaters with comprehensive control features.
Durability and Build QualityDurability and build quality refer to the materials and construction of the heater. A well-built heater will last longer and require less maintenance. Look for heaters made with corrosion-resistant materials, especially if you have a saltwater pool. Stainless steel and titanium components are good indicators of a durable heater. If you want a long-lasting investment, prioritize models known for their robust construction and reliable performance.
Noise LevelNoise level is the amount of sound the heater produces during operation. This is important if you value a quiet pool environment. Some heaters are designed to operate more quietly than others. Check the decibel (dB) rating of the heater; lower dB ratings indicate quieter operation. If you plan to use your pool frequently and want to maintain a peaceful atmosphere, opt for a heater with a low noise level.

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