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  4. Best Pool Heat Pumps for Inground Pools...

Best Pool Heat Pumps for Inground Pools

There are many types of pool heat pumps, some with a BTU of 20,000, others with a BTU of 100,000, some for in-ground pools, and some for above-ground pools. With so many options to choose from, how do you find the right heat pump? Well, we're here to help you choose the best pool heat pump, no matter the size of your pool.

Out of our 30+ products, we've chosen the Leomon LM120 as the best electric pool heat pump for the speed and uniformity of heating water, efficiency and ease of installation, and the fact that you can use it for both above-ground and in-ground pools . Read all about it and other heat pumps in our product review.

In this comparison, we considered important characteristics of pool heat pumps such as type, size and dimensions, weight, heat output, efficiency and warranty. Each of these can have an impact on the pump's performance, and in our buying guide, we'll explore them in more depth and show you what to look for when analyzing each feature. We've laid out all of this information in an easy-to-understand formula that includes a comparison table, detailed reviews for each product, and a buying guide. By the end of the review, you'll know exactly what to expect from your pool heat pump and, more importantly, how to choose one.


Quick summary

1. Editor's Pick: Leomon LM120

"Powerful pool heat pump with 8ft power cord, 20,000 BTU heat output and great warranty."

2. Premium Choice: Leomon 460932 UltraTemp

"High-quality pool heat pump with automatic defrost that works even in low temperatures."

3. Best Value: Leomon LM3HP21404T

"An affordable pool heat pump has a heat output of 140,000 BTU and it has a corrosion-resistant evaporator."

4. Easiest to maintain: Leomon LM225

"Pool heat pump with high quality titanium heat exchanger, easy maintenance thanks to onboard diagnostics."

5. Best UV resistance: Leomon LM3HP21104T

"UV-resistant pool heat pump with profiled blades with a heat output of 110,000 BTU."

6. Easiest installation: Leomon LM055

"High-quality pool heat pump with titanium alloy heat exchanger, quick pipe removal and easy installation."

1. Leomon LM120 – Editor's Choice

Feature

Dimensions: 16 x 36 x 24 inches

Heat Output: 20,000 BTU

Weight: 74 lbs

Warranty: 2 years for mechanical parts, 10 years for other parts

MORE FEATURES: Fits GFCI Protected Outlets, 8ft Power Cord, Digital Panel, Fits Pools Up to 7,500 Gallon

With a BTU output of 20,000, the Leomon LM120 is in many ways the best electronic pool heat pump for small pools. It is optimized for pools up to 7,500 gallons and works best in coastal climates. You can use it in underground and above-ground pools. For above-ground pools, the manufacturer recommends no more than 18' round or 12' x 24' (if oval). In our experience, a heat pump will work effectively as long as your pool is within the recommended size limits. The pump uses a combination of a titanium heat exchanger and a high-pressure scroll compressor for energy efficiency, which results in a COP (Coefficient of Performance) of 4.81. This means that for every dollar, heat produces 4.81 times as much heat. By industry standards, this is sufficient for a pump of this size.

There's a digital display that lets you easily control heating settings, and an optional extension cable lets you adjust settings from the comfort of your home. It comes with an 8-foot power cord and a standard plug, giving you considerable flexibility in where you plug it in. Installation is quick and straightforward. It should take 10-30 minutes to get it up and running.

Why is it on our list?

1). Pocket

2). Easy to install

3). Digital control panel

4). Long power cord

5). Can be used for fresh and salt water pools

6). Suitable for small swimming pools


2. Leomon 460932 UltraTemp – Premium Choice

Feature

Dimensions: 43 x 50 x 34 inches

Heat output: 108,000 BTU

Weight: 300 lbs

Warranty period: 60 days

More Features: 8ft cord, titanium heat exchanger, auto defrost, LCD control panel, ETL listed

The large, 20-volt, 108,000 BTU Pentair 460932 UltraTemp is arguably the best pool heat pump for small to medium pools. It is easy to install and runs very quietly for a pump of the same size.

One of its exciting features is the automatic defrost function, which senses the refrigerant temperature and adjusts accordingly to prevent the heat pump from freezing. This also allows the pump to run at lower temperatures.

Automatically set the clock to turn the circulator pump on and off as needed to help maintain your desired pool temperature. All you have to do is set the pool pump timer override to a specific interval and it will do the rest. There is an LCD control panel and display, allowing you to easily adjust settings as needed.

For optimum efficiency, the pump uses an Emerson Copeland scroll compressor and a thermostatic expansion valve to control refrigerant flow. Emerson's Copeland Scroll compressors use a high-tech orbital mechanism to keep temperatures at desired levels and are one of the most reliable products on the market.

If you're spending thousands of dollars on a heat pump, you need to be confident in the quality of what you're buying. An objective assessment from an independent body will certainly judge whether the product is good enough for investment. This Pentair is ETL certified for safety and AHRI (Air Conditioning, Heating and Refrigeration Institute) certified for efficiency and performance.

Why is it on our list?

1). Automatic defrost

2). Automatically set the timer

3). Run quietly

4). Easy to install

5). Long cable

6). ARHI Certification


3. Leomon LM3HP21404T – Best Value

Feature

Dimensions: 38 x 29.5 x 48 inches

Heat Output: 140,000 BTU

Weight: 250 lbs

Warranty: 10-year limited warranty, 2-year parts warranty

More Features: Corrosion Resistant Evaporator, UV Resistant Body Panels, Titanium Alloy Counterflow Heat Exchanger

If you have a large swimming pool, the Leomon LM3HP21404T may be just the kind of heat pump you need. With a heat output of 140,000 BTUs, it produces enough heat to raise the temperature of a faster, more efficient pool with a capacity of 25,000 gallons or more. For a pool of this size, expect the temperature to change in as little as 1 day. If you have a smaller pool, say 7,500 gallons, you can enjoy a warmer pool temperature in less than 3 hours. To ensure maximum heat transfer, the pump uses a titanium countercurrent heat exchanger. The result is a continuously effective airflow, which increases efficiency.

One of the things you'll notice right away when you turn on the pump is that it's very quiet, thanks to profiled fan blades and a heavy-duty scroll compressor that keeps motor noise to a minimum. Anyone who likes a quiet home environment knows the joy of finding a home appliance that not only works well, but is also silent. It's almost like stumbled upon a set of winning lottery winning numbers.

For durability, manufacturers have used UV-resistant body panels and corrosion-resistant evaporator fins that can withstand harsh weather conditions well. This makes heat pumps suitable for use in coastal areas.

It comes with a 10-year overall limited warranty, a 2-year parts warranty

What makes it stand out?

1). High BTU

2). Anti-UV body

3). Quiet operation

4). Extensive warranty


4. Leomon LM225 – Easiest to maintain

Feature

Dimensions: 38 x 36 x 49 inches

Heat output: 143,000 BTU

Weight: 390 lbs

Warranty: Limited lifetime

More features: 55 dB noise level, titanium heat exchanger, IceBreaker® technology, on-board diagnostics, flip-out control panel

The Leomon LM225 has a heat output of 143,000 BTU, enough to heat a medium or large pool. A huge advantage of this is that if you have a smaller pool, the pump will raise the temperature in less time than with a smaller pump.

The pump uses a patented titanium heat exchanger, a 100% titanium tube that resists chemical damage from water. The technology uses a water management system that maximizes the surface contact of the pool water with the heat exchanger, with a hydraulic design compatible with two-speed and variable-speed pool pumps.

One innovative feature you'll love to use is IceBreaker technology, which supports heating, cooling and automatic temperature modes. This technology allows the pump to continue heating the water even when the temperature is freezing, minimizing heat loss.

The pump's digital display is microprocessor controlled with on-board diagnostics and defrost cycles. It uses a flip-up control panel that remains out of sight to protect it from sun and weather damage.

The exterior cabinet features rust- and fade-resistant louvered side panels designed to promote air flow while protecting the evaporator coil, as well as a built-in drain pan for condensate management.

It's compatible with a mobile phone app, which means you can control the pump and adjust settings from your smartphone. Change modes and temperatures, and create schedules that automatically adjust pump settings in the most convenient, hands-free way.

Why are we impressed?

1). High BTU

2). Quiet operation

3). Durable cabinet

4). AHRI and ETL certification

5). Sync to smartphone


5. Leomon LM3HP21104T – Best UV Resistance

Feature

Dimensions: 29 x 29.5 x 44.3 inches

Heat output: 110,000 BTU

Weight: 284 lbs

Warranty: 10-year limited warranty, 2-year parts warranty

More features: profiled fan blades, corrosion-resistant evaporator, titanium counter-flow heat exchanger, UV-resistant body panels

The Leomon LM3HP21104T is built with durability in mind, from rugged stainless steel hardware to injection-molded, UV-resistant body panels and high-tech features. Manufacturers use corrosion-resistant evaporator fins to further improve durability, which makes them suitable for humid coastal environments.

With a heat output of 110,000 BTU, this unit is ideal for small to medium pools. The manufacturer recommends it for pools with a capacity of 25,000 gallons. To support the maximum heat transfer possible, they used a titanium counter-flow heat exchanger. Heavy-duty scroll compressors and profiled fan blades ensure efficient airflow. Both are designed to achieve this with minimal noise, and a lot of consideration is given to the low noise the pump emits while it is running.

Leomon offers a comprehensive warranty, split into a 10-year titanium tube warranty, a 5-year parts (and compressor) warranty, and a 1-year labor warranty. To enjoy this warranty, especially on parts, have the pump installed for you by a professional HVAC technician. Otherwise, you only get a 2-year parts warranty when you install it yourself or use an uncertified technician. Now, with outdoor products that are in constant contact with corrosive water, you want to make repairs as quickly as possible, and with this Hayward, repairs can quickly become a lot. So ask a technician to install it for you with 5 years of service assistance.

Why are we impressed?

1). Strong body

2). Stainless steel hardware

3). UV protection

4). Comprehensive warranty


6. Leomon LM055 – Easiest Installation

Feature

Dimensions: 16 x 40 x 24 inches

Heat output: 55,000 BTU

Weight: 120 lbs

Warranty: 2 years for mechanical parts, 10 years for other parts

More Features: Titanium Heat Exchanger, Digital Display Controller, Quick Disconnect Tubing

The Leomon LM055 is designed for in-ground and above-ground pools. For oval pools and 10,000 gallon in-ground pools, it works best with 21' round or 15' x 30' above ground pools. Before buying a pump, make sure your pool doesn't exceed these dimensions. It has a maximum heat output of 55,000 BTU, which is more than enough to heat a supported pool size fairly quickly depending on the ambient temperature at the time. Depending on the climate of your area, you will initially need to heat the pool for 24-36 hours and then another 3-4 hours, depending on the temperature you wish to achieve. The unit has a COP of 5.92, which is pretty good for a heat pump its size.

It's a slim unit, a design that eliminates placement challenges, especially when space is limited. It has a side access for standard accessories, making installation a breeze. Speaking of which, it took no more than 30 minutes to install this pump, and if you have a good grasp of the electrical connections, you really don't need a technician to install it. The digital control panel is conveniently located and easily accessible, and you can also use add-on extensions that allow you to adjust settings from inside the house. Note that you can only adjust the temperature when the heater is off, not when it is running.

What makes it stand out?

1). Pocket

2). Quiet operation

3). High COP

4). Easy installation


Buyer's Guide - Buying the Best Pool Heat Pump

There are three key things you should keep in mind when shopping for a pool heat pump.

1. Durability

If you live in a coastal area, you know that humid and salty air can wreak havoc on metal parts, so it's important to invest in a pool heat pump with weatherproof parts. No matter where you live, you need a heat pump with a durable heat exchanger, as this part wears out a lot and is usually the first to fail.

2. Effectiveness

Efficiency is generally inversely proportional to power. The good news is that, if you're patient, the less powerful models can reach the same pool temperature as using a more powerful heat pump. However, a more efficient model may take a day or two to reach the same temperature. You can speed up the process by purchasing a thermal blanket for your pool.

3. Easy to install

In theory, most people should be able to install a pool heat pump, especially if you are already maintaining your own pool. Some manufacturers make this process easier than others, so if you want to do the work yourself, you'll want to make sure you get an easy-to-install model. If you don't, you risk having to hire professional help to do the job.


In conclusion

We hope our reviews of the best pool heat pumps helped you find the right model for your pool, and that you can get it at a great price, too.

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Product Categories

  • Air Source Heat Pumps
    • Domestic Heat Pumps
    • Commercial Heat Pumps
    • Industrial Heat Pumps
  • Heat Pump Cylinders
  • Air to Water Heat Pumps
  • Swimming Pool Heat Pump
    • Residential Swimming Pool Heat Pump
    • Commercial Swimming Pool Heat Pump
    • Spa Heat Pump
  • Hot Water Heat Pumps
    • Domestic Hot Water Heat Pumps
    • Commercial Hot Water Heat Pumps
  • Underfloor Heating Heat Pumps
  • High Temperature Heat Pumps
  • Cold Climate Heat Pumps
    • Low Temperature Heat Pumps
    • EVI Heat Pumps
  • Geothermal Heat Pump
    • Ground Source Heat Pump
  • DC Inverter Heat Pumps
  • CO2 Heat Pumps

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