10 Best Electric Pool Heaters 2025 in the United States

The Aquastrong Inverter Swimming Pool Heat Pump is a solid choice for pool owners looking to extend their swimming season with reliable heating and cooling capabilities. With a heating capacity of 55,000 BTUs, it’s well-suited for larger pools up to 16,000 gallons, meaning it can heat your pool quickly even in cooler climates. Its inverter technology is a big plus, delivering high energy efficiency with a reported COP of 15.8, which can save up to 70% energy compared to traditional electric heaters and perform better than many gas heaters. This means lower running costs over time. The heater’s size is fairly compact (29 x 18 x 43 inches) and it comes with multiple connection options, so installation is flexible for both above ground and inground pools. The inclusion of WiFi control and an app is very convenient, letting you adjust water temperature, set schedules, and monitor energy use remotely, which adds to user-friendliness.

Durability looks promising with cast iron materials and a 3-year warranty backing it. Noise is kept low at about 50 dB, so it won’t be a major disturbance near your pool area. The automatic defrost feature also ensures smooth performance in colder months. On the downside, while 50 dB is quiet compared to some, it may still be noticeable in very quiet environments. Also, because it runs on 220V power, installation might require professional help if your setup doesn’t support this voltage. This pool heater provides reliable and efficient performance for owners seeking smart control and energy savings without excessive noise or complicated installation.

The Raypak Crosswind V Pool Heat Pump is designed to efficiently heat both above ground and in-ground pools, making it a versatile choice for many pool owners. It uses a smart hybrid heating system that can automatically switch between electric and gas sources (if gas is available), which helps reduce energy costs while keeping your pool comfortably warm throughout the year. This feature is great if you want to save on your utility bills.

The unit is built tough, with a powder-coated metal cabinet and a titanium tube heat exchanger, which means it should last a long time even in outdoor conditions. Weighing 330 pounds and measuring roughly 34 inches on each side, it’s a sizable unit, so you'll want to ensure you have enough space and proper installation support. The Crosswind V also offers convenient smart controls via Wi-Fi, allowing you to adjust temperatures or schedule heating remotely from your phone. This makes managing your pool’s temperature easy and flexible, especially if you have a busy lifestyle.

Heat pumps typically operate quietly compared to gas heaters, but because it has a fan and compressor, some sound is expected during operation. Its high customer ratings suggest users are happy with its performance and reliability. The unit may carry a higher upfront cost due to advanced features and sturdy build, which might be a consideration if you have a tight budget. For those seeking a durable, energy-efficient, and smart pool heater with hybrid capabilities, the Raypak Crosswind V represents a solid choice that offers convenience and long-term savings.

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.