Swimming pools are a great addition to any backyard, offering you the possibility to enjoy a relaxing bath during the hot summer days. Unfortunately, the warm season eventually comes to an end and most people choose to close their outside pool until the next summer. Why is that? Well, many of those who have a swimming pool consider that using it during the cold season is quite challenging. Warming the water requires time and money and not all people are willing to make this effort.

But what if we tell you there is a way to warm your pool quickly and without too much effort? For this, you need a pool heat pump that helps you extend your swimming season. The heat pump is cost-efficient in the long term even if it may require a higher initial cost. From the many models available, we have rigorously selected the best 5 and compared them for you. Read their specifications and reviews and decide which of them best suits your needs.

Top 5 Pool Heat Pumps Comparison

1. Pentair UltraTemp 460932 2. Raypak 013331 R8350TIE 3. Jandy Zodiac JE2000T 4. Hayward HP21104T 5. Hayward HP50TA
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General Information

Manufacturer Pentair Raypak Zodiac Hayward Hayward
Dimensions (in.) 43 x 34 x 50 48 x 38 x 37 43 x 40 x 36 31.5 x 31 x 46 31 x 40 x 35
Weight (lbs.) 300 385 220 245 120
Pool Type Above Ground Pools & Inground Pools Above Ground Pools & Small Inground Pools Inground Pools Inground Pools Above Ground Pools

Technical Specifications

Heating Performance (BTU) 108000 133000 108000 110000 50000
Coefficient of Performance (C.O.P.) 6.0 5.5 6.0 5.7 5.4
Heat Exchanger Titanium Titanium Titanium Titanium Titanium
Compressor Scroll Scroll Scroll Scroll Scroll
Phase Type Single Single Single Single Single
Minimum Water Flow Rate (GPM) 30 15 20 30 30
Maximum Water Flow Rate (GPM) 120 60 70 75 75
Refrigerant R410-A R410-A R410-A R410-A R410-A
Volts 230 230 230 240 240
Hertz 60 60 60 60 60


LCD Control Board Digital Controls Advanced Digital Control Electronic Temperature Control Electronic Temperature Control
Dual Thermostat for Pool and Spa Independent Temperature Controls for Pool and Spa Dual Thermostat for Pool and Spa Dual Thermostat for Pool and Spa Polypropylene Exterior
AutoSet 4-Port Base Hydraulic Efficiency Profiled Fan Blade Fan and Sound Blanket
Automatic Defrost Built-In Internal Bypass Acoustic Compressor Cover
Corrosion-Resistant Composite Cabinet Polyester Powder-Coated Cabinet Corrosion-Resistant Evaporator Fin
Self-Diagnostic Software Durable Injection-Molded UV-Resistant Body Panels


Warranty 60-Day Warranty on Parts 2-Year Warranty on Labor 2-Year Warranty on Heat Pump 2-Year Warranty on Parts 2-Year Warranty on Parts
2-Year Exteded Warranty on Parts and Labor 7-Year Warranty on Parts 5-Year Warranty on Compressor 1-Year Warranty on Labor 1-Year Warranty on Labor
10-Year Extended Warranty on Compressor Parts and Labor 2-Year Warranty on Parts and Labor 5-Year Warranty on Exchanger 5-Year Warranty on Compressor 5-Year Warranty on Compressor
Lifetime Extended Warranty on Titanium Heat Exchanger 10-Year Warranty on Titanium Tube 10-Year Warranty on Titanium Tube 10-Year Warranty on Titanium Tube
User Manual
Customer Support

Read More Details on Products

1. Pentair UltraTemp 460932

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With an impressive list of features and superior performance, this heat pump made by Pentair is among the best options available at this moment. It is also an economical and Eco-friendly way to heat both your pool and your spa. Besides this, it is pretty silent and very user-friendly.

Intuitive and Durable Design

This unit features a rectangular design, so it is narrower on the sides. This allows you to find it a place much easier. The cabinet is made of composite material that is highly resistant to corrosion. As a result, it is very durable and pretty heavy – it weighs 300 pounds.

  • LCD control board and digital controls: the menu is very intuitive and the controls allow you to set the temperature for the pool and spa.

Great Overall Performance

Being equipped with a titanium heat exchanger that provides a long-lasting performance and a scroll compressor that is more silent and resistant – in comparison to a piston-driven compressor – the unit won’t disappoint. The built-in ozone-friendly refrigerant is Eco-friendly and very efficient. It features a heat release rate of 108000 BTU and has a coefficient of performance of 6.0. This makes it a reliable option for medium to large-sized pools.

  • AutoSet temperature control: it comes as the default setting and it maintains the water temperature selected by the user – the pump turns on and off as many times as necessary.
  • Dual thermostats: for a separate control of the pool and spa.
  • Automatic defrost: prevents freezing when operating at low temperatures.

Easy to Install and Cheap to Run

Based on a cost comparison analysis made in 2014, the unit will only cost you up to $0.12/kWh. Some other types of heaters can cost you up to $3.75/Gal – no. 2 heating oil or $1.13/Therm – natural gas.

  • Self-diagnosis software: provides continuous monitoring for a more efficient operation.
  • Easy installation: features 2″ plumbing connections.
  • Convenient LCD control board with controls
  • Easy to set and operate
  • Comes with a thermostatic expansion valve (TXV) which controls the refrigerant flow
  • Rigid construction that makes it very durable
  • The performance is affected when the water temperatures gets too low

In what concerns the usage, this model is more versatile as it works for both inground and above ground pools. It features a convenient automatic defrost and the cabinet is made of a corrosion-resistant cabinet. At the same time, the self-diagnostic software monitors the system to make sure there aren’t any malfunctions.

2. Raypak 013331 R8350TIE

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Raypak 013331 R8350TIE is another great option because it is versatile and user-friendly. The versatility comes from the fact that you can use the pump for above ground pools, but also for small inground pools. With a 130000 BTU output and a coefficient performance of 5.5, this model will help you heat the water in no time.

The Titanium heat exchanger is a great addition as it maximizes the heat transfer, being able to withstand the test of time. In what concerns the R410A refrigerant, this is both eco-friendly and efficient, so you can be sure that your choice is among the best possible. Also, for more convenience, the unit features digital controls and separate temperature controls for pool and spa. Other interesting features are the 4-port base that enables 4 plumbing configurations and the durable polyester powder-coated cabinet. For ease of mind, the pump comes with a generous warranty for parts and labor, but also for the titanium tube.

  • Features diagnostic lights
  • Great air flow for increased efficiency
  • Sound isolating pads that block the sound transfer to equipment pad
  • On board diagnosis
  • Rather heavy

This model is designed for both above ground pools and small inground pools. Even though it’s a little bit heavier, the heater is solid enough to stand the test of time as it features a polyester powder-coated cabinet. Also, the separate controllers for pool and spa are a great addition, as well as the 4-port base that allow 4 plumbing configurations.

3. Jandy Zodiac JE2000T

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Jandy Zodiac JE2000T, is another great heat pump for your inground swimming pool. The unit has a 108000 BTU output and a 6.0 coefficient of performance. The titanium heat exchanger for increased hydraulic flow and the R410-A refrigerant make it a high-quality unit that certainly won’t disappoint you. With this pump, you can be sure that your pool will be heated without paying a fortune for electricity.

The advanced digital controls make it very easy to operate while the dual thermostat allows you to monitor both the pool and spa separately. The pump also comes with 2- 2.5 inches plumbing unions.

As about the warranty, although it’s not the longest on the market, you will still rest assured knowing that besides the unit, the compressor and the heat exchanger are covered against any manufacturing defects.

  • Superior energy efficiency
  • User-friendly
  • Features multilingual capability
  • Reliable brand
  • Works only for inground pools
  • Short warranty

Designed for inground pools, this model features a dual thermostat for both spa and pool, for conveniently monitoring each of them. Additionally, the heat pump is Versa Plumb ready which ensures up to 50% more hydraulic efficiency. The manufacturer backs not only the heat pump, but also the compressor and exchanger.

4. Hayward HP21104T

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From our point of view, Hayward HP21104T is one of the best options you can go with simply because it’s performant and comes at a reasonable price. The unit was specially made for inground pools and comes with some innovative features that will take the pool heating to another level.

The 110000 BTU heating performance and the 5.7 coefficient of performance make it appropriate for many residential pools. Additionally, the unit comes with a titanium heat exchanger that increases its efficiency and its capability to transfer the heat. Just like all the other models, the pump features an environmentally friendly R410-A refrigerant. The most interesting features you will find in this unit are the electronic temperature control, the acoustic compressor cover, and the profiled fan blade.

For this heat pump, the manufacturer provides a warranty for parts and labor, but also for compressor and titanium tube. Therefore, you can rest assured that your investment will be protected against any possible manufacturing defects.

  • Very efficient
  • Durable housing
  • Easy installation
  • Quiet operation
  • Works only for inground pools

You can opt for this model only if you have an indoor pool. The many features it comes with makes it more convenient in terms of use and efficiency. The electronic temperature control helps maintain a constant temperature while the profiled fan blade allows an optimal air flow. For a silent operation of the compressor, the manufacturer added an acoustic cover.

5. Hayward HP50TA

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The Hayward HP50TA was specially designed for above ground pools, providing superior performance in all weather conditions. However, with a heat release rate of 50000 BTU, the unit is not the best choice for swimming pools of more than 13000 gallons.

Just like all the other models, this pump features a titanium tube for excellent heat transfer and increased efficiency. Also, the manufacturer added an R410-A refrigerant that is both eco-friendly and very performant. Features like the electronic temperature control and the polypropylene exterior make this unit both easy to use and durable, so you can enjoy it for many years to come.

As about the warranty, you will enjoy a warranty for parts and labor, but also for the compressor and the titanium tube. This means that in case there are any manufacturing defects, the customer service will take care of your purchase.

  • Durable construction
  • Very efficient
  • Cheap to operate
  • Easy installation
  • Works only for above ground pools

If you’re looking for a heater that works only for above ground pools, this is what you’re looking for. Make sure your pool is not too large as it features a heating performance of 50000 BTU. You can control the temperature electronically, thus allowing you to maintain a constant temperature. Also, the polypropylene exterior does a great job at keeping away the rust.

6. AquaPro PRO1100

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You can use this pump for both above and inground pools of maximum 28,000 gallons. It is equipped with a titanium heat exchanger and it can deliver a high amount of heat, more specifically 112,000 BTU. When it comes to energy use, the pump has a COP of 60. Of course, this may vary depending on the air and water temperature. The built-in refrigerant is R410-A. Furthermore, this model is certified by the Air-Conditioning, Heating, and Refrigeration Institute.

What we like about this unit is the fact that if features self-diagnose codes, letting you know the exact issue it may have. At the same time, it comes with a digital thermostat for pool or spa settings. You can select the desired temperature within a 45 and 104 degrees Fahrenheit range. The LED display shows you the current water temperature. Additionally, this model has a high-temperature lock-out feature.

In order to set it up, you will need a 208/230V electrical connection. The minimum flow rate is 25 GPM and the maximum is 80 GPM. The heater is 35 inches long, 35 inches wide, 39 inches tall and weighs 285 pounds. You will receive a 5-year warranty for the heat exchanger.

  • Due to the small footprint you can use is not only for in ground pools but also for above ones
  • Features an air management system that boost heat
  • Works with all remote systems
  • Silent operation
  • Built-in electronic self-diagnosis codes
  • Pretty expensive

This is a reliable heat pump that does its job. It comes with some nice features and is easy to use. For purchasing it you will have to pay more money but it’s a long-term investment for your swimming pool. Like all the models made by this brand, this one too provides excellent performance.

7. Trane TR21174T

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Made for residential use, this model is ideal for covered swimming pools of up to 32,000 gallons or uncovered swimming pools of up to 15,000 gallons. This is possible due to the 110,000 BTU output. It has a coefficient of performance ranging from 4.0 to 5.7, depending on the ambient air temperature and relative humidity. Just like most similar models, it comes equipped with a titanium heat exchanger as it is the most corrosive resistant material.

This model also comes with a corrosion resistant evaporator coil and a R410-A refrigerant. Also, it features a dual thermostat for pool and spa and you can control the water temperature with the help of the electronic temperature control. The digital LED display shows you the temperature of the water in 1° increments. For more convenience, it features self-diagnosis codes.

The unit is 30.2 inches wide, 34 inches deep, and 37 inches tall and it weighs 195 pounds. In order to prevent rust and corrosion, the cabinet is made of polymer. Additionally, it is easy to install and comes with 2 x 2.5 inches plumbing unions. This model is AHRI certified and is warranted for 5 years.

  • Dual thermostat for pool and spa
  • Features electronic temperature control
  • Digital LED control panel
  • Self-diagnostic codes
  • Short warranty

All in all, this electric heat pump is a nice option. It is easy to operate and install and features a quite operation without vibrations. Also, it comes with great features. However, we would’ve wanted it to come with a longer warranty.

Reduce Searching Time by Answering These Simple Questions

We know your time is valuable, so we are here to help you get the heater pump you are searching for. Just ask yourself several questions to find out which model classifies as the best one for your pool.

  • Do You Have an Inground or Above Ground Pool?

    Not all heat pumps are suitable for both inground and above ground pools because the swimming pools usually have different sizes and connection ports. Those units that work for both types of pools are more versatile from this point of view, but this is not necessarily a big advantage.

    The only models that can easily adapt to any type of pool are Pentair UltraTemp 460932 and Raypak 013331 R8350TIE, the second one having a restriction in what concerns the size of the inground pool. The others are suitable only for inground or above ground pools.

  • What Size Is Your Pool?

    The heating performance represents the amount of heat the pump can deliver and it’s measured in British Thermal Units or BTUs. One BTU can raise the temperature of one pound of water by 1 degree Fahrenheit. So, the more BTUs, the faster the heating process. However, when you determine how many BTUs you need for heating your swimming pool, you have to also consider the surface area of the pool and the temperature rise.

    Raypak 013331 R8350TIE generates 130000 BTUs, while the last model generate up to 50000 BTUs.

  • Do You Want to Reduce Energy Costs?

    The coefficient of performance tells you how performant is the pump in terms of energy use. With a simple method of calculation (energy output – which in this case is the heat created by the pump – divided by the energy input – which in this case is the energy input to the pump) you can find out how much the electricity bill will increase at the end of the month. The result of this formula is the COP, and the higher it is, the more efficient the heat pump. For every unit of energy input, the pump produces 1 x COP heat energy. Now based on what we’ve said, let’s take for example one of the 5 pumps and make a fast estimation.

    Hayward HP21104T has a COP of 5.7, so this means that for every unit of energy it consumes, there are produced 5.7 units of energy. In comparison to all the other models from our chart, the ones with the highest COP are Pentair UltraTemp 460932 and Jandy Zodiac JE2000T.

  • How Important Is the Heat Exchanger?

    The main purpose of a heat exchanger is to warm the water that passes through. After the water is warmed it’s reintroduced into the pool. This operation is just a small part of the entire working procedure of a pool heat pump and it continues until the entire water gets to the desired temperature. The heat exchanger may be made from various metals including nickel and titanium. The quality of the material adds more durability to the unit and increases its resistance to corrosion.

    All the models we’ve selected feature a titanium heat exchanger, which makes them rust resistant when they get in contact with water. Additionally, the titanium heat exchanger is suitable for both salt and freshwater swimming pools.

  • How Important Is the Compressor?

    There are two types of compressors, reciprocal and scroll. The reciprocal compressors are less used because they are outdated and not quite efficient. On the other hand, the scroll compressors have become more popular because they have a compact design and are much more performant.

    All the heat pumps from our comparison table use the innovative scroll compressor.

  • Do You Care about the Environment?

    The pool heat pumps that use a R410-A refrigerant are made with the environment in mind. According to the manufacturers, this type of refrigerant is a better choice in comparison to other refrigerants which are less efficient and more polluting.

    For this reason, we made sure that all the products selected have an eco-friendly R410-A refrigerant.

  • Do You Want the Manufacturer to Stand Behind the Product?

    We paid a special attention to the warranty of the selected products, this being a proof that manufacturers are confident about the durability of their products. In order to generate consumer confidence, a product has to be covered by a generous warranty.

    Pentair UltraTemp 460932 comes with the longest warranty, but there’s one condition, you have to register the product and make proof of payment. Once you do this, you will be able to enjoy an extended warranty.

Pool Heating Systems Available

Besides the heat pumps, there are other types of systems that can warm the water in your swimming pool. They work slightly different, but the final purpose is the same, that is to extend the swimming season. Including the heat pumps, we can say that there are 4 pool heating systems you can choose from, the other 3 being electric heaters, gas heaters, and solar heaters. To better understand how they work and how exactly they differentiate, we will outline their main characteristics.

  • Heat Pumps

    You may think that the heat pumps produce heat, but this is not quite true. Using electricity, they extract heat from the air, then compress it, and finally, they release it in the water. The heat produced is circulated all through the swimming pool. In general, the heat pumps are cheap to operate, even though you have to pay more money to purchase them. The trick with these pumps is that they aren’t the best solution when the air temperature is too low as they require more electricity to operate. However, they are very durable and environmentally friendly because they don’t pollute the environment with all sorts of gases.

  • Electric Heaters

    As opposed to the heat pumps, the electric heaters use electricity to generate heat. In general, they are recommended for small pools because they tend to use a great amount of electricity to heat the water. Most models have a COP of 1.0. Installing them may be complicated and expensive and you may need the help of a professional. The main advantage of this type of pool heating system is that is cheaper in comparison to other types, the most expensive models being under $2000. Also, they are an eco-friendly alternative if that’s what you’re looking for.

  • Gas Heaters

    The gas heaters are the best option in terms of promptitude, being able to warm the water very fast. For this reason, they are ideal for swimming pools that aren’t used regularly. However, it seems that their popularity has decreased significantly in the last years. The reason is quite simple: they use propane or natural gas. This doesn’t make them an eco-friendly option for all those who care about this planet. In what concerns the price, the gas heaters cost less than $1500 but they aren’t cheap to operate and they aren’t energy efficient.

  • Solar Heaters

    The solar heaters have to be installed on the roof of the house for best results and they are ideal for sunny areas. Using solar panels that collect the sun’s heat, these heaters warm the water in your pool through a pool pump. They are a green solution because they don’t emit any harmful gasses. Also, they are very durable, easy to install, and don’t require maintenance. But there are some drawbacks. Firstly, they are very expensive, some models being priced at $3500 – $4000. Secondly, they require time to heat the swimming pool. Thirdly, they got energy from the sun, so they need constant sun in order to operate.

These Are the Brands You Can’t Go Wrong With

There are many heat pump brands on the market, but it seems that only some of them have managed to gain the customers’ trust. All well-known manufacturers offer you the advantage of buying reliable pumps that can efficiently heat the water without rising your electricity bills. Knowing that you buy a quality product from a respectable manufacturer offers you peace of mind, even though you may have to pay more money. Let’s find out more about the brands you can confidently go with.

  • Pentair

    You’ve certainly heard about Pentair as this brand comes with a history of approximately 150 years. The company offers a wide range of product lines including water and food solutions. Always searching for the best alternatives to simplify our lives, Pentair has managed to be at the top of the most reliable manufacturers.

  • Raypak

    With a long history behind and a commitment to quality, Raypak has succeeded in becoming among the best in this industry. There are many models of heat pumps sold under the name of this brand, thus having the possibility to choose the right unit for your needs. Besides the heat pumps for pool and spas, the company also produces and sells electric and gas-fired heaters.

  • Jandy

    Ever since the company was established in 1958, Jandy has produced innovative swimming pool equipment. The brand is also recognized for manufacturing the first automatic swimming pool cleaner. The company sells 8 models of heat pumps for your swimming pool, each of them being carefully designed to meet your expectations. Starting with 2007, the company merged with Zodiac Pool Systems, Inc. offering the same high-quality products.

  • Hayward

    Hayward is a leader in the pool equipment industry, having an experience of more than 80 years. The main purpose of the company is to make innovative products for clients all over the world, offering them simple solutions for their swimming pools. In what concerns the heat pumps, they offer models for both inground and above ground pools, so you can choose what is best for you. Other products manufactured by Hayward are cleaners, pumps, filters, and so on, all of being user-friendly and efficient.

  • AquaCal

    Founded in 1981, AquaCal is among the largest heat pump manufacturers at this moment. Focusing on quality and innovation, all AquaCal products are an excellent choice for all those who want to invest in quality. Besides this, the company offers great customer support for all those who have bought or are interested in buying an AquaCal product.

  • Rheem

    Rheem company has been founded in 1925 by Richard and Donald Rheem. Apart from the pool & spa heating products, you can find a wide range of other product, including heating and cooling products or commercial refrigeration products. Among their family of brands, we should mention Ruud, Ecosmart, and Kramer.


All in all, each of the models selected by us is a long-term option for warming your pool. Although you have to make pay more when buying the heater, in time, you will recover your investment. If you’re looking for a model that is suitable for both above ground and inground pools, we recommend you Pentair UltraTemp 460932. It is great for larger pools and comes with many built-in features. We also like Hayward HP21104T. This model delivers great performance and will impress you with features like the acoustic compressor cover or the injection-molded UV-resistant body panels. Nevertheless, if you have a smaller pool, you can go with Hayward HP50TA. This one is more affordable but is designed only for above ground pools. Before buying, weigh up both the advantages and disadvantages and then choose the right model for your pool.

Frequently Asked Questions

?How to Protect the Heat Pump in the Winter?

The best thing you can do to protect the pump during the winter months is to cover it with a special cover made by the manufacturing company. This should let the unit to breathe by allowing the moisture to escape.
?Does Any of These Models Can Also Cool the Water?
No, none of the models reviewed in this article can cool the water. They can only heat it.
?What Does the Phase Type Mean?
The phase represents the type of electrical supply needed by the pump. In general, small pumps feature a single phase while the larger ones have a 3-phase.

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