5 Best Heat Pumps for Swimming Pool in 2021 – A Complete Guide

Best heat pump for swimming pool

If you are looking to upgrade your pool heating system you have come to the right place. We will have a look at which are the best heat pumps for the swimming pool.

You have probably done enough research by now that you know heat pumps are the most efficient way to heat your swimming pool. They can provide consistent performance throughout the season or the year independent of the weather variations. I am not saying they are completely independent. But if you will have cloudy weather for 2-3 weeks the heat pump will still provide heat for your pool. While on the other hand, any system that relies on solar power would let you down.

Which heat pump you should choose for your pool?

There are several key factors you must consider:

  • Climate – Pool Heat Pumps are tipically air to water. While water to water heat pumps also exist, they are more expensive and usually not worth the extra price over air to water pumps.
    So you have to consider what is the average ambient temperature at you location when considering how powerful heat pump do you need. Below is an estimation how many BTUs per Gallon of water you need, depending on your average ambient temperature when using the pool.
    • 4 BTUs per gallon or 1 BTU per litre of water when an average 24h temperature is around 70°F (21 °C).
    • 5 BTUs per gallon or 1.3 BTUs per litre of water when an average 24h temperature is around 60°F (15 °C).
    • 6 BTUs per gallon or 1.6 BTU per litre of water when an average 24h temperature is around 55°F (12 °C) or below.
  • Usage – When are you using your pool? Is it during Summer only or also during Spring and Fall. This fact is important to consider because of the average ambient temperature that was discussed above. You can use the given numbers as a good estimation of how powerful heat pump you need.
  • Above Ground or In-Ground – Some heat pumps are designed for optimal use for above ground pools and others for in ground. So you have to consider what kind of pool you have when buying a pool heat pump. Also, in-ground pools are tipically a bit better with retaining the heat just because the ground temperature does not fluctuate as much as the air temperature.
  • Pool Size – This one is pretty straightforward. The larger the size of your pool the more powerful heat pump you will need.
  • Heat Retainment Covers – I always recommend using some sort of covers to retain the heat of the pool as much as possible when not in use. A solar cover can be a great way to keep your pool covered. Not only will it prevent any debris or kids from falling in, but it can also help keep the temperature nice and warm. It will also reduce water evaporation, which means you can keep your costs down and further reduce costs by not needing to run a water heater.

Which are the best heat pumps for swimming pool?

I have compiled a list of the best swimming pool heat pumps. The table contains the most important data for each to help you make your decision.

Best Affordable for Above Ground Pools
FibroPool FH120 Above Ground Swimming Pool Heat Pump
MOST EFFICIENT
AquaCal Tropical T55 Heat Pump 51,000 BTU, T055AHDSBND, 690449050744, Swimming Pool Heater
Aqua Cal Tropical T75 Heat Pump 72,000 BTU, T075AHDSBLH, 1 Phase, 60 Hz, 220v R410A
Puri Tech Quiet Heat 112,000BTU Pool Heat Pump with Savings Optimizer
Best for Large In-Ground Pools
Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools
FibroPool FH120 Above Ground Swimming Pool Heat Pump
AquaCal Tropical T55 Heat Pump 51,000 BTU, T055AHDSBND, 690449050744, Swimming Pool Heater
Aqua Cal Tropical T75 Heat Pump 72,000 BTU, T075AHDSBLH, 1 Phase, 60 Hz, 220v R410A
Puri Tech Quiet Heat 112,000BTU Pool Heat Pump with Savings Optimizer
Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools
Pool type
Above-Ground and In-Ground
Above-Ground and In-Ground
Above-Ground and In-Ground
In-Ground
In-Ground
BTU
20 000
52 000
72 000
112 000
140 000
Max. Pool Surface Area
280 square feet (26 square meters)
700 square feet (65 square meteres)
970 square feet (90 square meters)
1050 square feet (98 square meters)
1125 square feet (104 square meters)
Max. Pool Size
7500 gallons (28.4 cubic meters)
19 000 gallons (72 cubic meters)
26 000 gallons (98 cubic meters)
28 000 gallons (106 cubic meters)
30 000 gallons (114 cubic meters)
COP
4.81
6
5.6
Not specified
5.7
201 Reviews
2 Reviews
1 Reviews
2 Reviews
141 Reviews
Price not available
$2,579.00
$2,889.00
$3,645.82
$4,299.00
Best Affordable for Above Ground Pools
FibroPool FH120 Above Ground Swimming Pool Heat Pump
FibroPool FH120 Above Ground Swimming Pool Heat Pump
Pool type
Above-Ground and In-Ground
BTU
20 000
Max. Pool Surface Area
280 square feet (26 square meters)
Max. Pool Size
7500 gallons (28.4 cubic meters)
COP
4.81
201 Reviews
Price not available
MOST EFFICIENT
AquaCal Tropical T55 Heat Pump 51,000 BTU, T055AHDSBND, 690449050744, Swimming Pool Heater
AquaCal Tropical T55 Heat Pump 51,000 BTU, T055AHDSBND, 690449050744, Swimming Pool Heater
Pool type
Above-Ground and In-Ground
BTU
52 000
Max. Pool Surface Area
700 square feet (65 square meteres)
Max. Pool Size
19 000 gallons (72 cubic meters)
COP
6
2 Reviews
$2,579.00
Aqua Cal Tropical T75 Heat Pump 72,000 BTU, T075AHDSBLH, 1 Phase, 60 Hz, 220v R410A
Aqua Cal Tropical T75 Heat Pump 72,000 BTU, T075AHDSBLH, 1 Phase, 60 Hz, 220v R410A
Pool type
Above-Ground and In-Ground
BTU
72 000
Max. Pool Surface Area
970 square feet (90 square meters)
Max. Pool Size
26 000 gallons (98 cubic meters)
COP
5.6
1 Reviews
$2,889.00
Puri Tech Quiet Heat 112,000BTU Pool Heat Pump with Savings Optimizer
Puri Tech Quiet Heat 112,000BTU Pool Heat Pump with Savings Optimizer
Pool type
In-Ground
BTU
112 000
Max. Pool Surface Area
1050 square feet (98 square meters)
Max. Pool Size
28 000 gallons (106 cubic meters)
COP
Not specified
2 Reviews
$3,645.82
Best for Large In-Ground Pools
Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools
Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools
Pool type
In-Ground
BTU
140 000
Max. Pool Surface Area
1125 square feet (104 square meters)
Max. Pool Size
30 000 gallons (114 cubic meters)
COP
5.7
141 Reviews
$4,299.00

Last update on 2021-09-08


FibroPool FH120 – Best affordable heat pump for smaller pools

Although this heat pump has an “Above Ground” part in the name in most stores, it can be used for In-Ground pools also.

With the output power of 20 000 BTUs, it can heat above-ground, and in-ground pools up to 7500 gallons (28400 liters or 24.8 cubic meters). The COP factor of 4.81 means that it provides 4.81 times more heat to the water than it uses electricity from the power grid. This can bring down the cost of heating by up to 85% compared to other heaters.

It is designed so it allows quick installation. Advanced titanium heat exchanger guarantees a long life span and protects against the damaging effects of corrosion or rust. By using a titanium heat exchanger, the heat pump is compatible with all types of water treatment such as chlorine, bromine, and salt.

The heat pump supports multiple functions:

  • Cooling and heating functions
  • Auto-operation, Auto-restart, Auto defrost
  • Timer on/off: no attendance is required
  • Wide ambient working condition: 23°F to 109°F (-5°C to 43°C)

If your pool fits the requirements for this pump I would definitely recommend it first. It is an affordable choice compared to other heat pumps. Additionally, it will save you money in the long run.

FibroPool FH120 Above Ground Swimming Pool Heat Pump
201 Reviews
FibroPool FH120 Above Ground Swimming Pool Heat Pump
  • 120 Volt, 60Hz, 10A draw
  • Built in 8 foot long power cable with standard USA plug
  • Suitable for pools up to 7500 gallons in coastal climates
  • Plug into an GFCI protected outlet

Last update on 2021-09-08


AquaCal Tropical T55

More than two times more powerful but also almost 2 times more expensive is the Tropical T55. it features a high-performance titanium heat exchanger. Microprocessor-controlled defrost cycle allows operation down to 40°F.

Heat pumps cabinet is very robust, impact-resistant, and rust and fade-proof. It is also supposed to run quieter than some other pumps.

T55 settings can be controlled via an LCD Display. To list some of the settings available:

  • Flip-out, lockable control panel is protected against sun and weather and can be easily programmed to prevent others from tampering with settings
  • Digital control panel with 24 character full-text display provides easy-to-read menu options and unit status
  • Ability to connect to most external controllers
  • Hybrid functionality can initiate a gas heater when an extra boost of heat is needed
  • Connect and control your heat pump with your phone

It can provide up to 52 000 BTUs depending on the external conditions. The COP factor is extremely good 6.

AquaCal Tropical T55 Heat Pump 51,000 BTU, T055AHDSBND, 690449050744, Swimming Pool Heater
2 Reviews
AquaCal Tropical T55 Heat Pump 51,000 BTU, T055AHDSBND, 690449050744, Swimming Pool Heater
  • New 2021 Model, PoolSync Ready. With the PoolSync WiFi Controller and app, you can adjust your heat pump's setting from the palm of your hand!
  • New 2021 Model, PoolSync Ready. With the PoolSync WiFi Controller and app, you can adjust your heat pump's setting from the palm of your hand!

Last update on 2021-09-08


Aqua Cal Tropical T75

T75 shares many similar features to the T55 with the exception of being more powerful. It can output 72 000 BTUs at nominal conditions. This means it can heat the pool as large as 26 000 gallons. The Cop factor is a little lower than T55 at 5.6. Nevertheless, this is still very good. The pump runs very efficiently under nominal and more demanding conditions.

Aqua Cal Tropical T75 Heat Pump 72,000 BTU, T075AHDSBLH, 1 Phase, 60 Hz, 220v R410A
1 Reviews
Aqua Cal Tropical T75 Heat Pump 72,000 BTU, T075AHDSBLH, 1 Phase, 60 Hz, 220v R410A
  • Due to production delay, the current lead time is 12 weeks.
  • New 2021 Model, PoolSync Ready. With the PoolSync WiFi Controller and app, you can adjust your heat pump's setting from the palm of your hand!

Last update on 2021-09-08


Puri Tech Quiet Heat

Puri Tech Quiet Heat features a durable weatherproof cabinet made for long-lasting use. The manufacturer claims that Savings Optimizer can save up to $2000 per year. This means the device pays itself off in less than 2 years. This is pretty good.

It is simple and easy to use, control panels include lockout security, and an automation-friendly system. It can output 112 000 BTUs in nominal conditions and is ideal for up to 28 000 gallon pools.

Sale
Puri Tech Quiet Heat 112,000BTU Pool Heat Pump with Savings Optimizer
2 Reviews
Puri Tech Quiet Heat 112,000BTU Pool Heat Pump with Savings Optimizer
  • Ideal for pools up to 28,000 gallons
  • Durable weatherproof cabinet made for long-lasting use.
  • Savings Optimizer saves up to $2,000 a year, extends the life of the pump, and reduces the noise of the system.
  • QZ Quiet Technology for quiet operation.
  • Simple and easy to use control panels include lockout security and an automation friendly system.

Last update on 2021-09-08


Hayward W3HP21404T HeatPro

For the after-market and new construction, the HeatPro is the only round, compact designed heat pump that combines excellent energy efficiency, industry-leading quiet operation, easy installation, and for superior value, performance, and reliability, a standard ultra gold fin evaporator coil for superior coastal corrosion resistance.

This really is your best choice for large in-ground pools.

Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools
141 Reviews
Hayward W3HP21404T HeatPro 140,000 BTU Pool Heat Pump for In-Ground Pools
  • BEST FOR: In-ground pools that are used regularly and benefit from maintaining an ideal consistent temperature. Non-corrosive design makes it durable for coastal climates.
  • ECONOMICAL HEATING: Using the surrounding air to heat the pool, HeatPro is more economical than propane, natural gas and electric heaters for maintaining the ideal water temperature.
  • UNPARALLELED DURABILITY: Ultra Gold corrosion-resistant technology provides unparalleled durability, even in harsh coastal environments.
  • CORROSION RESISTANT: Titanium heat exchanger ensures maximum heat transfer and provides excellent salt water and chemical corrosion resistance. UV-resistant body panels are impervious to corrosion and deterioration
  • TRUSTED BRAND: With over 80 years of experience, Hayward is an industry leader in manufacturing advanced pool equipment.

Last update on 2021-09-08


Final words

As you have learned heat pumps are probably the most efficient way to heat your pool water. In combination with some solar covers or even solar cells that generate electricity, it is a win combination. Compared to classical propane heaters the cost of heating can be even 5 times lower.

There are a few factors you should consider when selecting an appropriate heat pump. These are climate, use, pool type and size, and some other.

Choosing a heat pump as your swimming pool heating system is definitely the right decision. Firstly, you will reduce pool heating costs. Secondly, from an ecology point of view, heat pumps are the most nature-friendly technology. Let it be for heating your pool or heating your house.

I hope our guide gave you the information needed to help you make the right decision. Wish you nice swimming in your pool heated by your new heat pump 😄.

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