10 Best Pool Heat Pumps 2025 in the United States

The Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater is a robust choice for those with in-ground pools and spas looking for reliable heating performance. With a heating capacity of 250,000 BTU, it provides substantial warmth, making it suitable for medium to large pools. One of its highlights is the durable cupro-nickel heat exchanger, which offers excellent resistance to corrosion, particularly useful if your pool water chemistry isn't perfectly balanced. This can enhance the longevity of the unit.

The product's energy efficiency is noteworthy due to its hydraulic design that minimizes the circulation pump's running time, leading to potential energy savings. However, its efficiency in terms of Coefficient of Performance (COP) isn't specified, which might leave some ambiguity about its operating cost effectiveness. While noise level specifics aren't detailed, natural gas heaters like this generally tend to be quieter than electric variants. The heater's design facilitates easy access for maintenance, thanks to its front-panel-only accessibility and intuitive control pad, which makes operation straightforward even for those not technically inclined.

Environmentally conscious users may appreciate its low NOx emissions, which meet air quality standards, indicating a reduced impact on the environment. On the downside, installation might require professional help due to its size and weight, which could add to the initial setup costs. At 165 pounds, it is relatively heavy, and its dimensions (33.3 x 32.8 x 30.6 inches) occupy a considerable amount of space, so ensure your installation area can accommodate it. With a customer rating of 4.1 out of 5 stars from over 500 reviews, it is generally well-received, though you may want to consider these potential limitations before purchasing.

The Aquastrong 35,000 BTU Inverter Swimming Pool Heat Pump is a versatile option for pool owners looking to extend their swimming season. Its dual-mode system for heating and cooling supports year-round use, which is ideal for those living in areas with varying climates. The heating capacity of 35,000 BTUs is suitable for pools up to 9,000 gallons, ensuring efficient temperature maintenance.

One standout feature is its energy efficiency, boasting a coefficient of performance (COP) of 15.8. This suggests substantial energy savings compared to traditional electric and gas heating methods. Coupled with its inverter technology, it dynamically adjusts power usage, potentially reducing energy bills significantly. Noise can often be a concern with such equipment, but this heat pump operates at a low noise level of just 48 dB, making it less disruptive. Additionally, it includes an auto-defrost function, which is beneficial for uninterrupted winter operation.

Controlling the unit is straightforward with its WiFi-capable app, allowing users to adjust settings remotely. This adds a layer of convenience, especially for programming heating schedules. In terms of build, the heat pump is made from durable cast iron, suggesting robustness, although weighing 116.8 pounds might make initial installation effortful. The product offers multiple connection options, enhancing its compatibility with various pool setups. However, the installation might still require professional assistance for optimal performance.

Backed by a 3-year warranty, the Aquastrong heat pump provides peace of mind. While its price point is not mentioned, the blend of features and energy efficiency potentially offers good value, especially for pool owners with mid to large-sized pools looking for reliable and efficient temperature control.

The TURBRO 50,000 BTU Swimming Pool Heat Pump is a versatile option for those looking to extend their swimming season in both in-ground and above-ground pools up to 16,000 gallons. Its strong heating capacity of 50,000 BTU, paired with an impressive Coefficient of Performance (COP) of 15.90, makes it an energy-efficient choice. The inverter technology allows it to adjust heating based on various conditions, providing steady temperatures and potential cost savings on energy bills. However, it's important to note that this heat pump is not designed to heat pools to hot tub temperatures.

A notable feature is its smart control capabilities, which include a user-friendly control panel and the ability to manage settings via a mobile app. This modern convenience may appeal to tech-savvy users who appreciate easy management from their smartphones. Additionally, multiple built-in safety sensors ensure safe operation by monitoring various parameters and shutting down in the event of a fault.

On the downside, the TURBRO heat pump operates most efficiently when outdoor temperatures are above 60°F. Its performance may decline in colder conditions, so using a pool cover can help maintain efficiency. The pump's noise level isn't specifically mentioned, so prospective buyers may want to consider this if noise is a concern.

Durability is bolstered by a titanium heat exchanger, providing corrosion resistance even in saltwater environments. However, professional installation is required due to its hardwired 220-240 V connection, which could add to the cost and complexity for some users.

The TURBRO Beluga series heat pump offers robust performance and smart features for those aiming to maintain comfortable pool temperatures during cooler seasons. Its efficiency and control features make it a strong contender, though installation requirements and temperature limitations are worth considering.