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Best Air Source Heat Pump for Swimming Pools (top pick)

An air source heat pump is an energy-efficient and eco-friendly solution for heating swimming pools. It harnesses heat from the surrounding air and transfers it to the pool water, providing comfortable swimming temperatures while reducing energy consumption. In this article, we will recommend the top choice for the best air source heat pump for swimming pools, along with a list of honorable mentions. These products are known for their performance, durability, and energy efficiency, ensuring optimal pool heating for an enjoyable swimming experience.

Hayward HP21404T HeatPro Titanium

The Hayward HP21404T HeatPro Titanium stands out as the best air source heat pump for swimming pools. It combines advanced technology, energy efficiency, and durability to provide reliable heating performance. Key features of this heat pump include:

High Efficiency 

The HeatPro Titanium boasts an industry-leading coefficient of performance (COP) rating, ensuring efficient operation and maximum energy savings.

Durable Construction

With a corrosion-resistant titanium heat exchanger and a rugged injection-molded UV-resistant body, the HP21404T is built to withstand harsh outdoor conditions and provide long-lasting performance.

Quiet Operation

The heat pump is designed with an acoustic compressor cover and a vibration-resistant base, minimizing noise and ensuring a peaceful swimming environment.

  • User-Friendly Interface: The digital control panel allows easy temperature adjustment and provides diagnostic codes for troubleshooting.

Honorable Mentions

While the Hayward HP21404T HeatPro Titanium is our top recommendation, here are some honorable mentions worth considering:

What size air source heat pump do I need for my swimming pool? 

The size of the air source heat pump depends on factors such as the pool's volume, location, desired temperature increase, and climate. It's best to consult with a professional or use an online pool heat pump sizing calculator to determine the appropriate size for your specific pool.

Can an air source heat pump work in cold climates? 

Yes, air source heat pumps can work in cold climates, although their efficiency may decrease as the temperature drops. Some models, like the Hayward HP21404T HeatPro Titanium, are designed to perform well in a wide range of ambient temperatures. However, in extremely cold regions, additional heating methods or a heat pump with a low-ambient temperature capability may be necessary.

Are air source heat pumps energy-efficient for pool heating?

Yes, air source heat pumps are known for their energy efficiency. They can deliver more heat energy to the pool than the electrical energy they consume. Look for heat pumps with a high coefficient of performance (COP) rating, as they provide greater efficiency and cost savings. Proper installation and maintenance of the heat pump also contribute to its energy efficiency.


For an efficient and reliable air source heat pump for swimming pools, the Hayward HP21404T HeatPro Titanium is the top choice. With its energy efficiency, durability, quiet operation, and user-friendly interface, it offers excellent heating performance and a comfortable swimming environment. Don't forget to consider the honorable mentions mentioned above as alternative options. When choosing an air source heat pump, consider your pool's specific needs and consult with professionals for expert advice. Enjoy the benefits of an energy-efficient and comfortable pool heating solution with the right air source heat pump.

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