10 Best Pool Heat Pump 2025 in the United States

The Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool and Spa Heater is designed for in-ground pools and spas, offering robust heating performance. With a heating capacity of 150,000 BTU, it can efficiently warm up your pool or spa, making it suitable for medium to large-sized installations.

A notable strength is its cupro nickel heat exchanger, which enhances durability and protects against corrosion, especially useful if your pool's water chemistry is often unbalanced. This means the heater is likely to last longer and require less maintenance over time. The industry's leading hydraulic design is another plus, reducing the circulation pump's run time and saving on energy costs. The heater also meets low NOx emission standards, making it environmentally friendly and compliant with air quality standards in low-NOx areas.

Ease of use is ensured with front-panel-only access and an intuitive control pad, simplifying operation, service, and maintenance. However, one potential downside is its size and weight. At 150 pounds and dimensions of 33.3 x 32.8 x 30.6 inches, this unit is quite bulky and may be challenging to install without professional help. Additionally, while it does rank well in the swimming pool heaters category, some users have noted that the customer service and warranty support could be improved. The Hayward W3H150FDN is a powerful and efficient choice for those needing a reliable pool and spa heater, especially if you prioritize durability and energy savings. However, consider the installation complexity and available support when making your decision.

The DR. INFRARED HEATER DR-900HP Full DC Inverter pool heat pump is designed to heat pools up to 28,000 gallons efficiently. With a heating capacity of 90,000 BTU, it provides powerful performance for both in-ground and above-ground pools. One of its significant strengths is its electric efficiency, with a COP of 540%, meaning it converts energy to heat very effectively.

The unit features market-leading technology with a Full DC Inverter fan motor and compressor, which adjust heating capacity for optimal efficiency, resulting in lower vibration and quieter operation. Durability is another strong point, with CSA and AHRI certifications ensuring stable performance and a soft-start function that enhances the longevity of the unit. Additionally, the built-in WiFi enables remote control and scheduling via a mobile app, offering convenience for users to manage pool temperatures from anywhere.

The USA-based customer support provides peace of mind for addressing any concerns or issues. However, the unit is quite bulky, with dimensions of 43 x 16.5 x 37.7 inches and a weight of 187 pounds, which might require adequate space for installation. Noise level specifics are not provided, but it is likely quieter than typical models due to its twin rotary compressor design. Control features are advanced, but could be complex for users not familiar with app-based management. This heat pump is ideal for users looking for efficient, powerful, and technologically advanced pool heating solutions.

The TURBRO 50,000 BTU Swimming Pool Heat Pump from the Beluga series is an efficient option for maintaining consistent pool temperatures during cooler seasons. Designed for in-ground and above-ground pools up to 16,000 gallons, it offers reliable heating with a COP of 15.90, making it cost-effective.

The inverter technology adjusts heating power based on various parameters to ensure stable temperatures, and it's especially efficient in temperatures above 60°F. Its size makes it manageable for smaller spaces, but the weight at 146.3 pounds means it requires a sturdy installation area.

It features a titanium heat exchanger, which is resistant to chemicals and saltwater, enhancing its durability. The control panel and WiFi capability allow for convenient operation and monitoring, adding modern functionality. However, professional installation is necessary due to the 220-240 V power requirement, which could add to the initial setup cost. Safety is a priority, with multiple sensors and automatic shutdown in case of faults.

It's an ideal choice for those looking to extend their swimming season efficiently, but it might not be as effective in colder temperatures or for larger pools beyond its capacity.