15 Best Pool Heater Reviews in 2021 You Should Know


Swimming isn’t necessarily an enjoyable experience, especially during the spring and winter seasons if colder winds begin blowing. If you reside in colder weather and would like to expand your swimming season by a couple of weeks or months, then pool heaters are almost a necessity.

Discovering the proper pool heater, though, can be somewhat tricky. Obtaining a super-powerful heater may wind up costing you a lot of money in utilities, whereas obtaining a little pool heater may not really do the trick when you’ve got a bigger pool. The fantastic thing is that we are here to guide you through the process of finding one of the best pool heaters to suit your requirements and price range.

Types of Pool Heater

Use Solar

Utilizing the sun’s energy, the present pool pump circulates the water through the pool heater, which is usually found on the rooftop or onto a framework built in the lawn.


  • It’s quite effective in southern climates year-round and goes swim period in northern climates.


  • Requires a system equivalent to 50 percent –100% of the pool surface. While solar energy might be liberated, the pool pump has to be operating to your solar heater to function correctly, which may boost your electrical bill.

Use Electric

It warms your pool quickly and reliably than solar heating. Electric pool heaters run by means of a heat exchanger, which broadcasts warmth from the air and transfers it into the water from your swimming pool.


  • It may nevertheless collect heat in the air if there’s not any sunlight, like on cloudy days and throughout the evening.


  • Not tend to maximize your water temperature just as far as solar heating system, so the water may not feel too comfortable, particularly if you’re relaxing at the pool instead of swimming. It’s also more costly to operate and less environmentally friendly since they utilize a much greater quantity of electricity.

Use Gas

This really is the most common kind since it heats a swimming pool fast and efficiently. Most versions utilize natural gas, which demands a line from the regional gas company, although some pool heaters operate on gas. Gas can be rather inexpensive when compared with other gas forms; therefore, it’s an inexpensive alternative for many pool owners.


  • Extremely good at keeping consistent water temperatures, but maintaining the water hot may call for an excellent deal of gas from chilly weather. Many newer versions have pilotless ignition, so the pilot light does not need to run continuously, which can save money and gas.


  • Their gas emissions create them environmentally friendly. They have a much shorter lifespan than other pool heaters types, lasting only approximately five decades.

List of 15 Best Pool Heater Reviews

1. Fafco Solar Bear Economy Heating System for Above-Ground Pools

Fafco is among the main businesses in the solar industry in America. The Fafco Solar Bear Economy Heating System is designed especially for use with above-ground pools. Unlike a number of other pool heating methods which use solar, the Solar Bear is both very inexpensive and easy to install.

These above-ground solar pool heaters generate up to 80,000 BTUs of heat every day, which is sufficient to heat a 24 ft. round pool 7-10 degrees warmer than their neighboring temperatures value. In any case, the solar pool heater kit also comprises an integral bypass valve, mounting base, cap straps, and rubber tubing plugs.

This item is simple to set up as it merely takes about 30 minutes to finish the setup, and it’s received a great deal of favorable solar pool heaters inspections.


  • Durable
  • Far less expensive than a number of other heaters
  • 10-year guarantee
  • Easy setup
  • Ease of use


  • The pool heater must be stored throughout winter

2. XtremepowerUS Inground/Above Ground Swimming Pool Solar Panel Heating System 28″ X 20′

The XtremepowerUS Solar Panel Heating System is constructed from exceptionally high-grade materials, which are demonstrated to survive in all sorts of weather, meaning there is hardly any demand for repair and upkeep through time.

The machine is intended for use with above-ground pools or in-ground pools, in more or less any light to warm climate. The Pool filter and pump system circulate pool water through the SOLAR PANELS if it’s heated & subsequently returned into a pool.

Once set up, these panels are cheap, produce no greenhouse gases, and require no maintenance. Stretch your swimming this season at a minimal cost with assistance from sunlight!


  • Very simple to use and application
  • Quick heating and incredibly efficient


  • Can work until sunlight can make them fragile

3. Hayward W3H400FDN Universal H-Series 400,000 BTU Pool and Spa Heater, Natural Gas

There are lots of other pool heaters in the marketplace, but Hayward is new with a solid standing. This pool heater will last you several years to come and remember you’ll save money in comparison to other manufacturers since it works so efficiently.

The Hayward H400FDN is the best pool heater for a major pool. It is heating power goes around 400,000 BTUs, which ought to be more than sufficient to warm any typical residential-sized swimming pool. The H400FDN layout resembles other Hayward merchandise layouts. This permits you to easily replace old Hayward merchandise, which you might have already. The compatibility will not be a problem.

The H400FDN generates few springs and runs very efficiently. Though you’ll notice an increase in your heating bill, it will not function as much as it might be with different kinds of heating methods. Its electronic panels can readily be utilized to rapidly correct settings, for example, temperature settings of the pool.


  • Efficient
  • It runs quietly and easily
  • Eco-friendly
  • Speedy heating time


  • May not be sent to some regions

4. Intex Solar Heater Mat for Above Ground Swimming Pool

Heating your above-ground swimming pool is made simpler with this Intex Mat. It utilizes the natural sun to boost your pool’s temperature by between 5-9 degrees F. Of course, that will depend on the weather around the mat along with your area.

The pool heaters are simple to install and need a filter pump of 0.5 HP or 25000 gallons per hour pump flow speed. It’s one of the best pool heating systems which assist pool owners in recouping their cash in the long term. 1 thing to remember is that the version functions all above-ground pools of 8000 g effective.

You could even rely upon the 11ft. Sq. of this mat to consume maximum sunlight’s rays on a bright day and extend your swimming season. The bundle also has an A-type adaptor, a B-type adaptor for a 1.5-inch hose, along with an 11/4-inch nozzle attachment point. You get all you would have to set up the pool heater to your own facility.


  • It has a pocket-friendly cost tag
  • It is compact and lightweight.
  • It works like a charm using almost all Intex above- ground pools
  • The plan allows for quick and easy connecting of over 1 unit
  • Power – efficient and environmentally friendly


  • Just compatible with Intex pools

5. Smart Pool S601 Pool Solar Heaters, Pack of 1

Should you have to increase your pool’s temperature without springing a substantial spill on your account, contemplate The SmartPool SunHeater. Its frame might be a solar-powered pool heater that uses the sun’s power to gradually warm your pool.

Using 80 square feet of sunlight-oriented planks using collector tubes bolstered from the pool pump, this sunlight-introduced plank pool radiator functions nicely to increase pool temperatures by at least a couple of degrees–based on sunlight exposure and climate conditions.

It’s ideal for medium-sized over-floor pools. Whereas it may not operate exceptionally productively in harsh winter, even when the temperature is close to 70, it may rise to some more wonderful level fairly rapidly. The frameworks nicely for the two in-ground and above-mentioned pools.


  • Low cost
  • Use in a variety of places.
  • Utilizing polypropylene heating collector
  • Favorable with the surroundings


  • Depend much on Solar Power

6. Raypak 406,000 BTU Natural Gas Millivolt Pool Heater

Raypak 406,000 BTU Natural Gas Millivolt Pool Heater is a handy and effective alternative if your house currently has a natural gas line, and this version comes in many sizes, including 206,000 to 406,000 BTU per hour, ideal for big in-ground pools.

The pool heater features a very durable corrosion-resistant solid metal cupboard with a wind-resistant layout, providing uninterrupted functionality in almost all weather. It’s a dependable electronic pilot ignition and can be controlled through digital controllers, and the layout can be used with most major pool control and remote systems, too.

Just remember that a port top is necessary for indoor setup, and this element is sold individually.


  • Large capacity
  • Several sizes


  • Professional installation recommended

7. SunHeater Pool Heating

This is most likely the most economical 80 square foot solar pool heaters you can purchase. It is still fairly affordable, even in the event you need to purchase a few of those. However, most clients discovered that only one is sufficient to warm their above-ground pool.

As a result of the massive surface area of the collector, the pool heater works amazingly quickly. It will increase your pool’s temperature by a couple of levels in a matter of hours on a sunny day.

Additionally, it works pretty well when the sunlight isn’t too powerful. In most areas, it is possible to start your pool a month before and shut it a month after.


  • Cheap — excellent worth for the money.
  • All accessories included
  • Large surface area
  • Heats a pool fast in a matter of hours.


  • You might need to buy another pump.

8. EcoSmart SMART POOL 27 Electric Tankless Pool Heater

The Smart Pool show by EcoSmart presents quick and effective heating of pools around 15,000 gallons.

Satisfied customers of this Smart Pool electric pool heater often portray the device as little and silent. It stands out because of its streamlined; it’s too straightforward to operate, much valued through an innovative control board that allows you to establish exact target temperatures to your pool.

This item is a fair alternative for gas pool heaters around as long as many heat pumps fetched twice as much.


  • Compact and easy to install
  • Flow activation
  • Space-saving layout


  • No long-term reliability

9. GAME 4714 SolarPRO Contour Solar Pool Heater for Intex

The Game 4714 SolarPro ball-shaped solar-powered pool heater is another and advanced way to heating your swimming pool throughout the spring and autumn seasons.

The SolarPro shape solar pool was created for both above-ground and inground pools in which high-quality substances allow maximum sunlight exposure without causing any damages to this item for the long term.

The Game 4714 SolarPro ground pool solar heater can gradually raise the water temperature by 5°F in seven days to get an estimated 10,000-gallon pool, which is sufficient to expand your swimming throughout the autumn and spring seasons. This item has been specially designed for a solar heater for above-ground pools from Intex or even a solar pool heater for inground pools from Bestway.


  • 1 1/4-inch and 1 1/2-inch strap
  • It warms up to 10.000 gallons.
  • Suitable for the two in-ground and above-ground pools


  • It’s not as successful as other components

10. VEVOR Electric Pool Heater 11KW 220V Swimming Pool Electric Heater

It’s possible to always heat your pool using the best electric pool heaters, such as the VEVOR Electric Pool Heater. It’s an excellent pool heating system having an aluminum-coated home plate to shield it from harsh surroundings.

The item utilizes stainless steel to extend the healing energy you need in order to boost the water temperature. The stainless-steel substance offers rapid heat transport, and an effective heat market, and is resistant to water chemistry that is rancid.

The machine electric pool heaters include an innovative control system to ensure it is much easier to function. This provides you with among the best pool heaters for both timely and precise observation of the temperature. Additionally, it has a smart self-diagnosed purpose for discovering the established temperature and finishing the machine. These kinds of electric heat pump pool heaters are simple to install and operate. You just have to trip the shifting power.


  • It perfectly matches the thermostat.
  • Uniquely designed for little pool.
  • It’s simple to operate
  • Intelligent self-checking system


  • You’ll Need to wire the heater.

11. FibroPool FH120 Above Ground Swimming Pool Heat Pump

This pool heat pump is made for above-ground pools of around 7,500 gallons and contains an output of 20,000 BTU.

It runs on power, and what is nice is that it adheres to a conventional 120-volt socket, allowing rapid and effortless hookup without professional setup. It’s a slim profile that is easy to hide on your lawn, and the device provides easy-set digital controllers.

The manufacturer asserts this heat pump can provide warm water temperatures, even if the outside temperature is as low as 40 degrees Fahrenheit, and it costs approximately 16 cents per hour to operate–that is less than $2 per day should you run it 24/7.


  • Uses standard 120V socket
  • Easy to set up


  • It just works with little pools

12. Goplus Solar Dome Swimming Pool Heater Above Ground

This version made our record due to its cost and the fact it is surprisingly powerful. This is definitely the lowest cost choice it is possible to find in regards to heating a pool.

Very similar to our solar pool heater choice, this Goplus Solar Dome utilizes heat from sunlight to heat the water and ship it back to your own pool. This is a little unit, which is partially why the price is so low, and it utilizes a dome shape to attempt to efficiently trap warmth.

As there aren’t any gas or electricity connections that come along with this pool heater, it’s a fast and simple install that any pool operator could deal with. If you’re seeking to heat your pool into the degree of a hot tub once the temperature has fallen out, select a distinct unit. If you would like to continue to some of that warmth and expand your swimming pool season, this is an ideal option.


  • Very cheap model
  • Small and compact will not take up much space.
  • Can a decent job at increasing the temperature a few degrees
  • It comes with a protective cover


  • Slow to get the job done
  • I cannot get the pool quite hot

13. Hayward HP21404T HeatPro In Ground 140,000 BTU Heat Pump

With corrosion-resistant and durable substances, Hayward’s HP21404T HeatPro Titanium heating pump is our second choice for the greatest electric pool heater. Its heating efficiency is incontrovertible, and we enjoy it works quietly to increase pool temperatures fast.

Put the temperature you need, and the pool heater kicks on automatically to make it occur.

1 possible pitfall is the way heavy this device is, weighing in at 250 lbs. Obviously, this is simply a problem at the time of installation and delivery. When it is set up, the heat pump can handle almost any environmental illness or pool dimensions throughout the year.


  • Operates quietly
  • Provides 140K BTU of heat
  • Resistant to environmental and climatic conditions


  • Very hefty at 250 Pounds
  • The user guide is lacking (and only available online)

14. SmartPool Universal Swimming Pool Solar Heating System

As its name suggests, the SmartPool Solar Heating System is acceptable for use on all types of swimming pools and pool pumps.

It is uniquely equipped with efficient heat-transferring tubing and solar panel, which operate smoothly together.

Installing it’s so simple you could literally do it by yourself, and the outcome is perfect pool water temperature which always remains warm.

When it might be somewhat pricey for your finances, you need to remember the SmartPool has a fantastic history and has proven technologies to back up its own performance.

It is ideal for both in-ground and above-mentioned swimming pools and may be employed with almost any pool pump.

The double 2×20 ft. is quite big, but it’s worth it when you think about the combined heating energy offered from the black polyolefin structure.

This can be complemented further by the pool heater guide flow water flow that permits it to work quickly.

And since it is acceptable for all kinds of swimming pools, it is a perfect alternative for anybody who is searching for durability, quality, and efficiency in their own solar pool heaters.


  • Incredibly easy to install
  • Environmentally friendly
  • Compatible with all kinds of swimming pools
  • Characteristics direct flow layout for efficient water flow
  • It comes with all of the resources required


  • The big solar panels Need Plenty of space.

15. Happybuy Electric Water Heater

Happybuy’s electrical pool heater may be the best solution for heating little pools. It may manage pools under five cubic meters in size, each producer, which translates to approximately 1,300 gallons of water. In case you’ve got a spa that requires a new heater or even a pool, this handy and mobile unit can provide help.

At under 17 lbs, it’s easy to move, and also the thermostat controller (and an automatic shutoff beyond 140 degrees Fahrenheit) is simple.

Remember, however, that Happybuy’s unit uses metric dimensions, including in their fittings. For this reason, you may have to supply the ideal fittings until you can set up the pool heater.


  • Supremely lightweight at under 5 Pounds
  • Easy to move/set upward
  • Safety shutoff perfect for spas


  • Not for outside use
  • Requires a weather-proof covering

Buying Guide for Best Pool Heaters


The size of your pool can also be a variable. A bigger pool, of course, includes more water; therefore, it is going to require a pool heater that’s strong enough to heat the entire pool into a consistent and comfortable temperature.


Despite the fact that you need pool heaters that are sized properly, silent and durable, the consumer experience is essential. The controls must maintain a logical design. Pool heaters using an LED panel and electronic controls make fever adjustment simple. Some operate with a distance, which is very convenient. If you decide on a gas heater, make sure it comes with an automatic and a manual shutdown mechanism.


If you’re searching for pool heaters that can make your pool nice and toasty warm in only a couple of hours, then a high-energy electrical heater is most likely your very best choice. If you are prepared to wait and need to spend less on your monthly utilities, then a petrol or toaster could be the ideal match.


Lastly, the final factor you have to look further into is associated with some quality that may not be lost in any item bought: guarantee.

Merchandise warranties for solar pool heaters may move from two to ten decades. As you can see, the gap can be quite significant; thus, you have to earn a balance between cost and guarantee value offered by the producer.


Pool heaters allow you to enjoy your pool more and enable you to get more value from your swimming pool. In addition, it makes swimming in your pool a much more enjoyable and healthier experience all around.

We’ve examined the best pool heater components out of the industry today, which you are able to buy from Amazon.

About Natasha Balami

My name is Natasha Balami, and I used to function as the electronic home editor in ELLE Decor. Right now, I'm working for Montana's Trail House on a mission to review great items for the Patio & Garden.

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