Best Pool Heaters

John Kopischke
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Nothing beats swimming in a summer pool, especially if the pool is indoors. The San Francisco weather has its unpredictable moments, but pool owners in the Bay Area are coping with the chilly and chilly winters.

Fortunately, there are plenty of indoor pool heaters for sale, and even more for installation. Here are our reviews of the best models.

First you’ll need to select the right model for your indoor pool. You have two main choices:

  • Fixed
  • Circulating

The circulating heaters are quite simple. You need to circulate about 30,000 BTU of the heater and your pool water. This is good if you have a smaller pool (up to 40 feet). This might not heat your pool that much and a lot of the water will not be heated.

Make sure you have some sort of circulation pump in your pool. You can get a booster pump that will help with the circulation action.

If you have a very big pool or a heated jacuzzi then a fixed heating system will more than easily do the job. These systems come in sizes of 50,000 BTU to 170,000 BTU. Bigger isn’t always the best, but the more you have the better the heating will be.

NameCategoryProduct
SOLARPOOLSUPPLY Highest Performing DesignBest OverallSOLARPOOLSUPPLY Highest Performing Design
AquaPill AP73 12,000 Gallon Solar PillBudget PickAquaPill AP73 12,000 Gallon Solar Pill
Hayward W3HP21004T Pool Heat PumpUpgrade PickHayward W3HP21004T Pool Heat Pump

1. SOLARPOOLSUPPLY Highest Performing Design

Our rating: 9 / 10

SOLARPOOLSUPPLY Highest Performing Design

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This pool heating system is perfect for most DIY’ers who are looking to add some type of form of heating to their swimming pool. The Solar Pool Supply’s high performance 1800 watt solar heater is designed to handle most conventional above ground pools.

What I like most about this pool heating system is its advanced design and DIY installation. The whole installation process is performed by you and can be as easy or challenging as you want it to be.

The whole idea of this solar heating system is to use the energy from the sun to warm up the pool water. The system uses 160 feet of 1¾ inch poly pipe (180 feet if you include the pipe that is used to collect the water), an electrical control box, a 10 foot anti-leak pipe, a solar panel, a bucket load of zip ties, and 8 feet of aluminum sheet.

2. FibroPool FH055 In Ground Swimming Pool Heater

Our rating: 8 / 10

FibroPool FH055 In Ground Swimming Pool Heater

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Pros:

  • Easy to install
  • Comes with a special funnel that makes installation easier
  • No tools required
  • Suits both above ground and in ground pools
  • Quick, even heating
  • Save up to 50% on heating bills
  • Automatic expansion valve. No costly upkeep
  • Consistent temperature at all levels of the pool

Cons:

  • Not cheap
  • Right out of the box there is some needed adjustment which is in depth and may not be needed in some systems.

You may have already paid for your swimming pool, but that doesn’t mean that you have to pay for your swimming pool to work for you.

If you’re looking for the best advice when it comes to your pool, then you’ve come to the right place.

3. SunQuest 2-2'X12' Solar Swimming Pool Heater

Our rating: 8 / 10

SunQuest 2-2'X12' Solar Swimming Pool Heater

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Pros:

  • Well-made
  • Durable

Cons:

  • Requires a little setup knowledge
  • Very heavy

This product is a relatively heavy and large pool solar heater. It is not portable and can only be set up in your pool where it can fit.

This pool solar heater comes with a complete set for easy assembly. It is designed to fit in with your pool on your existing vinyl liner, or it can be installed on your concrete if you have one. It can be installed on new or old pools.

Also, an installation does not require tools of any kind for this product. The items needed to install this solar Pool heater can be a little difficult to find for some, and may prove to be very costly.

4. Fafco Solar Bear Economy Heating System

Our rating: 8 / 10

Fafco Solar Bear Economy Heating System

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Pros:

  • 3 x more efficient than solar blankets
  • Doesn’t require extra installation costs
  • Delivers heat so you can swim from fall to summer
  • Portable and easy to install
  • Safer than gas heaters
  • No harmful combustion residue or odor
  • Budget friendly
  • Zero energy costs
  • Portable and easy to install
  • Safe to use around children

Cons:

  • Lacks protection from high winds that can blow it away
  • Can’t compare to gas heaters in the long run

When it comes to purchasing a solar pool heater to heat your swimming pool, the Fafco Solar Bear Economy Heating System for Above-Ground Pools is one to consider. For those who don’t know, a solar pool heater is a device that utilizes heat from the sun to heat pools.

This powerful solar pool heater is designed for inground pool up to 20 feet in diameter. Its design allows for it to be placed in a pool without the need for additional assembly.

5. Smartpool S601P SunHeater Solar Heating System

Our rating: 8 / 10

Smartpool S601P SunHeater Solar Heating System

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Pros:

  • 1500 Watt UVA/UVB Solar Pool Heater
  • Fits pools up to 8 Ft. deep
  • PVC Coated Cables for In-Ground Pool Applications
  • Winter Cover Not Required
  • Low Voltage Operation

Cons:

  • Requires a solar panel
  • Manual Nozzle Removal
  • Only Heats Pools Up To 8 ft. Deep

If you are looking for a better way to heat your pool without breaking the bank or worrying about electricity, the Smartpool S601P SunHeater Solar Heating System for In Ground Pool is a great choice.

Instead of using a hose that is subject to freezing, or an expensive electric pool heater, the Smartpool S601P SunHeater Solar Heating System can use the sun’s energy to heat your pool water. This innovative solar powered pool heater heats pools up to 8 feet deep, as well as covering up to 30,000 Gallons.

6. Hayward W3HP21004T Pool Heat Pump

Our rating: 8 / 10

Hayward W3HP21004T Pool Heat Pump

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Pros:

  • Heat up your pool very quickly
  • Very efficient

If you want to get your swimming pool ready for the summer, you’ll need a reliable above ground pool heater.

This Hayward pool heater is proven to be durable and efficient. It features a large capacity heat pump that is one of the most efficient models on the market. It is efficient because of its impeccable JIS rating.

This above ground pool heater is also very reliable. It is free from corrosion, which is very common in pool heating systems and a main cause of failure. You can feel secure that it will serve you for a very long time. But do consider its price before you purchase it.

7. SOLARPOOLSUPPLY

Our rating: 8 / 10

SOLARPOOLSUPPLY

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Pros:

  • Made in the US
  • Easy to install
  • Lifetime limited warranty
  • Easy on the environment

Cons:

  • Not an instant fix
  • Price can be off-putting for some people

When it comes to the best pool heaters, this is one of those that you definitely need to check out. It’s tailored to suit heating swimming pools.

The industrial-grade Solarpoolsupply device is designed to heat pools of 48” to 54” deep and using the latest in solar technology, you will be able to generate some hot water for your pool through it.

It’s not the most expensive system out there, but you do need to have some DIY knowledge and a way of understanding the various components of the system if you want to go ahead and install it.

8. Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater

Our rating: 8 / 10

Raypak 266,000 BTU Digital Electronic Ignition Natural Gas Pool Heater

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Pros:

  • Cheap for its size
  • Solves common problems that you’ll likely have with your current heater
  • Sturdy design

Cons:

  • It’s quite big, so make sure you have enough space
  • It’s only natural gas

The Raypak 266,000 BTU heater is the best pool heater for its price. If you live in a cold climate, then you know that it’s necessary to constantly heat your pool.

This helps the water maintain its ideal temperature and reduces the amount of chemicals you’ll need to use.

With the Raypak, you can rest easy knowing that your pool is going to stay heated. This heater can even heat a 27,700-gallon pool.

9. XtremepowerUS Ground Mounted Heating Solar Panel System

Our rating: 7 / 10

XtremepowerUS Ground Mounted Heating Solar Panel System

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Pros:

  • Affordable
  • Easy to put together
  • Made from the finest quality aluminum
  • I ts extremely efficient and will heat your pool in a matter of days
  • Included divert kit allows you to easily run multiple electrical cords
  • The 2 foot by 20-foot size makes it suitable for all sizes of pools
  • Characteristics of this heating system are – it is very cost effective, very safe, made of durable metal with reliable solar panels.

Cons:

  • The formation of algae on the surface of the pool is the only drawback if you decide to go with this heating system.

The installation of this system is quite simple. Although it involves a lengthy process having to do with the connecting of cords and other such procedures, the end result is definitely worth it.

10. Raypak 336,000 BTU Digital Electronic Ignition Propane Pool Heater

Our rating: 7 / 10

Raypak 336,000 BTU Digital Electronic Ignition Propane Pool Heater

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Pros:

  • 3 Year Warranty
  • Low Power Consumption
  • Simple Operation
  • Remote Control
  • Adjustable Temperature setting
  • Easy to install
  • Can also be used as a hot tub heater or fireplace

The Raypak 336,000 BTU pool heater is a premium-level propane heater that is a nice upgrade from traditional gas or electric models. When navigating the pool heater market, this unit jumped out at me thanks to its high BTU power and digital ignition system, which makes starting it up a breeze.

It also features a remote control and can heat a pool up to 25’ x 50’. It saves on energy costs and can heat your pool up quicker than other heaters. The price is high, but I think it’s worth it if you’re looking to keep pool heating costs low.

11. SunHeater Pool Heating System Two 2’ x 20’ Panels

Our rating: 7 / 10

SunHeater Pool Heating System Two 2’ x 20’ Panels

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Pros:

  • Wattage: 2,500w
  • Keeps the pool warm enough to enjoy as soon as you get out of work
  • Placement is easy & requires little effort
  • It is guaranteed to be efficient and long lasting for the price you purchased it at
  • Bracket are already built into the panels
  • Connects easily to the pool’s filtration system
  • Heats your pool faster
  • Able to double as a drink cooler

Cons:

  • The product can be expensive, although some would consider it reasonable since you get what you pay out for
  • Can be expensive for smaller pools
  • Not the best for larger pools, unless you buy more to be more cost effective
  • The heat of the water rises very slowly
  • Temperature must be controlled

This pool heater is one of the best on the market. It offers an affordable price and value, as well as a very efficient product for your money. It heats your pool quickly and efficiently and is easy to install.

12. Steinbach Speed Solar Sun 49120 Solar Pool Heater Low-Density Polyethylene 0.7 x 3 m

Our rating: 7 / 10

Steinbach Speed Solar Sun 49120 Solar Pool Heater Low-Density Polyethylene 0.7 x 3 m

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Pros:

  • Low price
  • Easy to store
  • Not just for pools
  • Great for any type of water including saltwater
  • Can be used to heat water in your shower
  • Heats up water quickly
  • Easy to install
  • Durable materials
  • 5 year full warranty

The Steinbach Speed Solar pool heater is the top solar panel heater for you if you want to heat your pool and need a heater that you can roll out and use in any temperature! It’s also one of the cheaper pool heaters on the market.

This pool heater has a water temperature capacity of up to 40 degrees. It’s also suitable for any type of water, even salt water.

The Speed Solar will heat up to 12,000 litres of water.

13. Sunheater Solar Pool Heater

Our rating: 7 / 10

Sunheater Solar Pool Heater

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Pros:

  • Easy to install
  • Cools the water with evaporation
  • Costs less than a traditional pool heater

The solar pool heater from Sunheater is perhaps the best above ground pool heater on the market.

Setting up this pool heater is alarmingly simple. Once you’ve attached it to the side of your pool, you’re ready to turn it on. You may need to adjust the angle of the solar panels from time to time to maximize the results.

Despite the ingenuity of this device, the evaporation process can be a little bit off-putting. The process begins with the pool water being sucked down through a hose and into a bucket which then begins to warm the water.

14. Raypak 406,000 BTU Digital Natural Gas Pool Heater w/Cupro Nickel

Our rating: 7 / 10

Raypak 406,000 BTU Digital Natural Gas Pool Heater w/Cupro Nickel

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Pros:

  • Comes with an extra-large 95% energy efficiency
  • Is easier to use compared to others
  • Is 25% larger than some of its competitors
  • Can heat pools as big as 50 feet by 50 feet with ease
  • Less weight
  • Durable

Cons:

  • Plumbing might be tricky in tight spaces
  • Unplugging the pool heater might be tricky for some people
  • It’s a little pricey

If you looking for the best pool heater for your pool, then this one might be right for you. This is a high-performance under-the-deck natural gas pool heater that isn’t just great, it also looks great. The Raypak 406,000 BTU pool heater is made for some serious heat.

Raypak is a globally recognized name when it comes to pool heaters, so you know that you’re getting a quality piece of equipment with this one.

The heat exchanger for this pool heater is made from cupro nickel, which is a durable material. This is a pressure-balanced pool heater that also comes with a digital thermostat for safety. The large 95% energy efficiency is also a great plus.

15. XtremepowerUS Inground/Above Ground Swimming Pool Solar Panel Heating System 28" X 20'

Our rating: 7 / 10

XtremepowerUS Inground/Above Ground Swimming Pool Solar Panel Heating System 28" X 20'

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If you want to know how to heat your pool cheap then take a look at the XtremepowerUS Inground /Aground Swimming Pool Solar Panel Heating System. This is an easy to install system that is also very affordable. A lot of consumers were extremely happy with the quality of the heating system.

This pool heating system is made of durable solar panels that absorb heat from the sun. This results in heating the water for your pool. The best thing about this system is that it only needs one or two hours of sunlight to warm up water.

The way the system works is that the water flows through the piping and then the heat is transferred to the pool. This works great even during the night because of an energy saving setting that has an internal pressure switch. That way, it can sense whether the pool is empty or full of water and then alter the current to the heating system.

16. EcoSmart SMART POOL 18 Electric Tankless Pool Heater

Our rating: 7 / 10

EcoSmart SMART POOL 18 Electric Tankless Pool Heater

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Pros:

  • Energy-efficient
  • Cloud-connected
  • Safe
  • Programmable
  • Environmentally friendly
  • Night-friendly
  • Temperature can be adjusted by a flick of the wrist
  • Filters water through a 360-degree spray

According to the manufacturer, the EcoSmart works across a wide temperature range of 40 to 113 degrees Fahrenheit, and can even heat water to the thermal death point of bacteria and algae.

The tankless pool heater heats the water in real time; as water flows from the pool pump and filter, the unit is able to heat to the desired temperature before it enters the pool. As a result, it can heat up a pool at half the time as conventional models.

The EcoSmart Smartpool can be controlled and monitored through Google Home and Amazon Alexa; simply ask your smart device for pool temperature, and the pool will tell you what it is!

17. Pentair 460805 MasterTemp High Performance Eco-Friendly Pool Heater

Our rating: 7 / 10

Pentair 460805 MasterTemp High Performance Eco-Friendly Pool Heater

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Pros:

  • Energy Star rated
  • Affordable, low-maintenance unit

LPH, 52 In. Length Pump, Multi-Zone, Floor/Wall/Marquis Mounting Kit Included, Includes Strainer, 1 yr. Warranty

The Pentair 460805 is a durable gas pool heater that features unique MasterTemp® safety controls that keep all system components at a constant optimum level for maximum efficiency and minimal fluid consumption. With its ability to operate at a high temperature, your pool’s water temperature is maintained above 80 degrees for longer periods, reducing the time you have to spend heating the water. With this unit, you don’t need to worry about frequent heat spikes or temperature fluctuations. Its special stainless steel design means that it can last up to three times longer than less expensive units, and reduces corrosion.

This infrared unit is guaranteed to provide safety performance, efficiency, and comfort, leaving you with beautiful, warm water to enjoy.

18. Goplus Solar Dome Swimming Pool Heater Above Ground

Our rating: 6 / 10

Goplus Solar Dome Swimming Pool Heater Above Ground

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Pros:

  • Lightweight
  • Quick and easy to install
  • Efficient
  • Not Only Warms Water
  • Adult Supervision
  • Factory Tested
  • Warranty
  • Long Working Life
  • Easy to clean
  • 2 Years Warranty

Cons:

  • Will require a pool cover
  • No power is required
  • Stay out of direct sunlight for longer periods
  • As with all such water warmers, don't leave the water too warm, as this increases algae growth

This solar heater is made of high quality materials and provides an effective heating solution in seconds. It comes with a 2 years warranty which is a nice assurance in case of issues.

Constructed to provide months of high quality heating, this pool cover is built with high quality materials and comes with a 4 years warranty. Any questions you might have can be asked without hesitation.

19. SSR SSRA-100 Solar Sun Rings Pool Water Heater

Our rating: 6 / 10

SSR SSRA-100 Solar Sun Rings Pool Water Heater

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Pros:

  • 3 sizes to choose from
  • Easy to install
  • Affordable
  • Made of durable material
  • Reduces energy or gas bills and also water bills

These rings use passive heating technology, which utilizes the sun’s rays. It is the most energy-efficient way of heating your water.

20. Happybuy Electric Water Heater fit

Our rating: 6 / 10

Happybuy Electric Water Heater fit

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If you are looking for an inexpensive pool heater, this is the best hot tub spa water heater for the money. Whether your water heater is for a pool, hot tub, or spa, it is one of the safest pool heaters you can purchase.

This tiny pool heater delivers plenty of heat for small or average-sized pools and spas. If you need a heater for a large pool or hot tub, I suggest searching for another type of pool heater.

21. SunQuest 6-2X12 Solar Swimming Pool Heater Complete System

Our rating: 6 / 10

SunQuest 6-2X12 Solar Swimming Pool Heater Complete System

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Pros:

  • Solar heating system
  • Everything you need to set up the system
  • Works in as short as 5 days
  • Huge coverage area
  • Can be easily installed
  • Extra-thick genuine glass panels
  • Can work with in-ground or above-ground pools

Cons:

  • Requires installation
  • Doesn’t come with an integrated pump
  • Limited warranty

This solar-powered pool heater from Sun Quest can heat average-size in-ground swimming pools up to seven feet deep and up to 25,000 gallons in size. It includes a solar collector unit, solar plates, heating element connections, water lines, and set-up instructions for easy installation (which should only take you a couple of hours to complete).

This is a very easy to use and affordable pool heater that can be easily installed and requires minimal maintenance. A great buy for anyone who wants a solar-powered pool heater that is easy-to-install and requires minimal maintenance.

22. Digital Heater BTUs: 250000 BTUs

Our rating: 6 / 10

Digital Heater BTUs: 250000 BTUs

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If you want to be able to swim year round, then one way to do so is by getting a pool heater. The Digital Heater is the best in the business, heating your pool up to 31 degrees above the original temperature, depending on where you live.

The Digital Heater is very easy to install and can even heat you entire pool because its heating capability is adjustable. The Propane Heat Shark can heat your pool in less than 8 hours, which is much faster than other heaters out there. The Digital Heater also has a great warranty that protects it from power surges, loss of fuel, malfunctions, shipping damage, and has a 2 year warranty for any regular wear and tear. The Digital Heater is also able to keep your pool warm for up to 7 days straight, so it is not something you would have to worry about all the time. One drawback of the Digital Heater is that because it is a propane fueled heater, there is potential for danger.

23. Hayward GLC-2P-A Solar Pool Heating Control System

Our rating: 6 / 10

Hayward GLC-2P-A Solar Pool Heating Control System

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Pros:

  • Easy to install
  • Portable
  • Works with most pool pumps
  • Economical
  • No fumes or chemicals

Cons:

  • The backup pump takes some time to start up
  • Sensors don’t work with all pumps

As you see in the most of pool heaters review, some customers have not been happy with the backup pump, as it takes sometime to start up.

The Hayward GLC-2P-A Solar Pool Heating Solar Pool Heating System is an excellent budget option to keep a small pool warm during the cold winter months. It’s a stand-alone system so there’s no need to attach it to the filter or any other part. It comes with heating and circulation pump.

The GLC-2P-A solar system has an automatic control that will prevent the pool from getting too hot. The owner doesn’t need to be home to monitor the temperature. The Hayward GLC-2P-A is very easy to install.

24. SunHeater S120U Universal Solar Pool Heater 2 by 20-Feet

Our rating: 6 / 10

SunHeater S120U Universal Solar Pool Heater 2 by 20-Feet

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Pros:

  • Lifetime Warranty
  • Has a smart temperature sensor which is user configurable
  • Maintains a constant water temperature
  • Heats at a rate of 20 feet per day
  • Easy to install
  • Made with high-quality components
  • Can be used with above ground pool
  • Has a low power consumption
  • Has 2X the life of other heaters
  • Has more power than competitors

Cons:

  • Just large enough to cover the surface area of a 20 foot pool
  • Takes some time to heat water surface area
  • It is not intended to heat the pool’s entire volume

One of the most important things that define a pool is the quality of its water. Have you ever bought a swimming pool and realized there’s something wrong with the water? It can be uncomfortable on the skin and cause you to itch. It can also be very irritating to the eyes.

The poor quality of water can be because of temperature. If you heat the water to the right temperature, you can enjoy a refreshing swim anytime.

25. FibroPool FH 220 Swimming Pool Heater Heat Pump

Our rating: 6 / 10

FibroPool FH 220 Swimming Pool Heater Heat Pump

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Pros:

  • Has a long lifespan
  • Must have something to do with the replaceable parts
  • It can be efficient in fuel consumption
  • Can heat up your pool in four hours
  • It establishes a consistent temperature to the issues that are cheap and short-lasting
  • It is super quiet
  • The price is very affordable
  • Available in different colors

Cons:

  • It only works with an inlet flow of 50 GPM, so if your inlet is slower than that, you'll need to look elsewhere
  • You'll need to have 240V in order to ensure that if one part fails it is replaced with another one
  • The filter system is as from the surface meaning the water will need to pass by it and come out once more in the pool which could lead to an early growth in sediment

180,000 BTU, 220,000 Btu/h.

26. Hayward W3H400FDP Universal H-Series 400,000 BTU Pool and Spa Heater

Our rating: 6 / 10

Hayward W3H400FDP Universal H-Series 400,000 BTU Pool and Spa Heater

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Pros:

  • Can be installed easily
  • Includes 3-year full warranty
  • Can be connected to propane

Cons:

  • High price
  • Needs servicing

If you’re looking for a reliable, powerful pool heater, then this is the one for you. It works well with all sorts of pools, including above ground and in ground pools.

It’s safe to say that if you don’t have this pool heater in your pool, you’re missing out on a lot of fun. It’s powerful enough to heat your pool up really fast, saving you loads of time.

If you consider yourself an active hobbyist, then chances are you have too much to do. You barely have time to devote to pool maintenance. This heating system might save you a lot of time since it heats your pool up fast.

27. Sta-Rite SR333LP Max-E-Therm Black Propane Gas Pool and Spa Heater

Our rating: 6 / 10

Sta-Rite SR333LP Max-E-Therm Black Propane Gas Pool and Spa Heater

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When you have kids, you want to offer them the best of everything. This includes having the latest movies and the best toys.

However, at the end of the day, nothing beats having a properly heated swimming pool in the backyard.

If yours is a little on the chilly side, then it’s probably time to upgrade your hot water heater to something that can keep the pool from freezing in winter and yet still be functional during warmer summer months.

28. Intex Solar Heater Mat

Our rating: 6 / 10

Intex Solar Heater Mat

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(Maximum Width)

The Intex solar pool cover can be described as a solar heater mat. It generates heat similar to that of a hot tub. It saves you much of the time and money in the long run compared to traditional ways of heating the pool water.

The Intex solar pool cover is very easy to use since you do not need to connect it to anything. The patented design allows the device to heat the water. It works best if placed in the sun for 8 to 10 hours.

29. Beluga Pool Solutions 1652 Solar Heating Device

Our rating: 5 / 10

Beluga Pool Solutions 1652 Solar Heating Device

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Pros:

  • Super efficient
  • No installation required
  • Super durable
  • Safe for kids
  • Easy to use

Cons:

  • Requires a sunny day to recharge
  • Doesn’t get as hot as more expensive models
  • Can be fussy
  • Takes a lot of time to get the water temperature you want
  • Surface must be clear of snow and debris

As the climate begins to warm up again, many people will be looking forward to getting their pool up and running again.

There are many types of pool heaters out there, but not all of them are good for your heater. In this guide I’ll help you find the best pool heater for your needs.

I’ll cover five main topics when I talk about different pool heaters. I will also look at 5 pool heaters in great detail to help you make your choice.

30. AquaPill AP73 12,000 Gallon Solar Pill

Our rating: 5 / 10

AquaPill AP73 12,000 Gallon Solar Pill

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Pros:

  • Uses solar power
  • Can heat a 12,000 gallon pool
  • Comes with a stainless steel clamp

Cons:

  • The cover that comes with Aqua Pill is not high enough for a raised pool cover, so you’ll have to find a different one
  • Not good for shallow pools

This is the ultimate solar water heater for a pool. You get two of these, so you get double the heating capabilities and double the value for your money.

This Aqua Pill is great because unlike other solar heaters, it uses solar energy to keep your pool warm. No other electrical components are needed. You simply place them in the sun, and they will warm your pool for you. All you have to do is wait for them to produce the results you’re looking for.

They have a stainless steel clamp that will hold the Aqua Pill in place, and you have an easy on and off system you can use when it’s time to refill your pool.

31. Pentair 460730 MasterTemp High Performance Eco-Friendly Pool Heater

Our rating: 5 / 10

Pentair 460730 MasterTemp High Performance Eco-Friendly Pool Heater

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Pros:

  • Eco-friendly
  • Natural Gas
  • Can be used with batteries as well

If there’s one thing I know about adults, it’s that they like to swim and that when they want to swim, they want the water to be at a warm temperature. So if you’re thinking of installing a swimming pool in your backyard, it’s best to invest in a good pool heater.

The results are stunning. There’s no more hassle of having to manually adjust the temperature of the pool, albeit I’m not sure if you have someone to spare to physically adjust your pool’s temperature every time you use it.

The Pentair MasterTemp High Performance Eco-Friendly Pool Heater is your best bet. He has a power rating of 200,000 British thermal units and can provide your swimming pool with an astounding 50,000 BTUs of heating power. It’s powered by propane and works through a gas valve.

32. Kokido Keops Solar Dome Above Ground Swimming Pool Water Heater

Our rating: 4 / 10

Kokido Keops Solar Dome Above Ground Swimming Pool Water Heater

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Pros:

  • Extremely cost effective
  • Will run for hours on a sunny day
  • Easy to assemble and install
  • Far superior to traditional solar panels
  • Beats the competition hands down
  • Great reviews.
  • Easy to Operate

Cons:

  • Is only good for above ground pools 30ft or smaller in length
  • Recommend reinforce pool frame area rt around solar panel.

The Keops Solar Dome Pool Heater takes solar technology to a whole new level. It is an extremely cost effective pool heating option.

The Keops Solar Dome is unique because it is different than other pool heaters on the market. In fact, it doesn’t look like a pool heater at all. It looks like a big bubble, but it doesn’t use any harmful and expensive chemicals; so, it is completely safe for your pool, fish, and plants.

As a direct result of its green technology, the Keops Solar Dome is fully compatible with almost any pool, tub, or spas. The device is built with the latest innovations and state-of-the-art features, making it a truly remarkable product.

33. Sun2Solar Ground Mounted Heating Solar Panel System

Our rating: 4 / 10

Sun2Solar Ground Mounted Heating Solar Panel System

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Pros:

  • Made from stainless steel
  • Works for both in ground and above ground pools
  • Easy to install

Cons:

  • The price can be a bit high
  • Fairly large
  • A lot of maintenance

Looking for the best solar heater for your swimming pool? This Sun2Solar ground-mounted system is a top-rated option because it heats water quickly and comes with a lot of high-quality features to ensure that it lasts for years.

The Sun2Solar solar heating panel system includes everything you need so you don’t even need to dig, cut, or weld anything. All you’ll need to do is connect a few tubes to the panels and you’re set! The set also includes a 36-volt pump with a cord attached for easy installation.

This solar heater is recommended for in ground pools up to 16 feet deep and above ground pools that are 8 feet deep. It’s made entirely out of stainless steel to last longer, withstand the elements, and look amazing.

34. GAME 4721-BB SolarPRO Curve Solar Pool Heater

Our rating: 4 / 10

GAME 4721-BB SolarPRO Curve Solar Pool Heater

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Pros:

  • If you’re in the market for an above-ground pool, you’re going to spend a lot of time around your pool and you’re going to be constantly using it, so it’s essential to have a reliable heater.
  • The Good:

The pool heater is a solar powered power, which is better than a gas one because it doesn’t require any maintenance or the cost on a gas bill if you were to use one. It comes with 3 grommets and 4 clamps. The kit includes a “T” piece that is used to attach 2 hoses to each other, so you can easily put the hose anywhere.

It works well with above ground pools of all sizes. Customers have reported that they live in areas with temperatures as low as 10-15 degrees and have no trouble getting their pool comfortable.

The Not So Good:

It works well with above ground pools of all sizes. Customers have reported that they live in areas with temperatures as low as 10-15 degrees and have no trouble getting their pool comfortable.

35. Raypak 105,000 BTU Swimming Pool and Spa Heater

Our rating: 4 / 10

Raypak 105,000 BTU Swimming Pool and Spa Heater

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Pros:

  • Low noise
  • Easy to install

Cons:

  • Large size
  • Only for pools

This propane pool heater is one of the best-selling models available on the market. It has 105,000 BTU capacity and a large 4.2 GPM flow rate.

For best effects, you need to have an automatic gas valve in order to conserve propane between heatings, thereby reducing costs.

When it comes to a pool heater, the only real purpose is to heat the pool water. It keeps the pool warm in the colder months of the year, and is not as common for a pool heater to heat a hot tub.

36. Pentair PacFab 461061 125K BTU MasterTemp Propane Gas Heater

Our rating: 3 / 10

Pentair PacFab 461061 125K BTU MasterTemp Propane Gas Heater

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Pros:

  • Heats up pool within 2 hours
  • Cord spools up neatly inside heater
  • Should not obstruct circulation through filtration system.
  • Consumes less fuel than conventional heaters or heat pumps
  • Includes a 1-year limited warranty
  • Easy to install and operate

Cons:

  • The effective coverage area is about 12′ x 18′
  • It is more expensive than electrically-powered heaters

Overall, the master temp propane pool heater is a great long term investment for you in case you want to add warmth to the pool area. It is a great option to go with if you want to have a permanent heat source for your pool area.

Installation is relatively easy given you have some plumbing and drilling knowledge. The cord spool easily unravels and lasts for a long period of time before it needs replacing. The tool-free controls are easy to use.

This is definitely a great option if you are looking for a reliable and cost-effective option for heating up your pool.

Frequently Asked Questions (FAQ)

What is the best pool heater on the market?

After some research, I wound up opting for the Intex 120-lb Floating Solar Swimming Pool Heater, model number SPF-120. Intex is a reputable brand, the heater is affordable yet durable, and it has very good reviews. I’ve since purchased a second Intex 120-lb Floating Solar Swimming Pool Heater, model number SPF-120 for my daughter’s play pool.

What size pool heater do I need?

If yours is a conventional in-ground pool, you can simply use a direct replacement if your existing heater is the same capacity and type. If the pool heater is being installed in a new pool, the first step is to examine the heat tape or other covering you will be using. The second step is to consult the manufacturer’s specifications for their recommended amount of heat, and the third step is to refer to this book to find the size you will need.

Is it worth getting a pool heater?

The great thing about a pool heater is that it not only keeps your pool at a lower temperature in the winter, but it also helps keep your water at the perfect pH level at all times. It’s a win-win situation. Use it or lose it, as they say.

The other great thing about a pool heater is that it keeps your pool usable all year long. When the cold sets in, the idea of warming a pool that’s already freezing probably sounds about as fun as waiting in line at the DMV. But, pool heaters have the capability to lower the temperature of even the deepest pools significantly, meaning you can get in and have a refreshing swim even in the dead of winter.

How do I choose a pool heater?

Consider going with a solar pool heater. Generally, they don’t cost much more than other types of pool heaters, and you can help the environment at the same time. Plus, they are virtually maintenance free, unlike gas or electric heaters. You can relax and spend your weekends getting some tanning time instead of worrying about your heater.

Conclusion

The main job of pool heaters is to maintain the water temperature, especially during periods of extreme low temperatures. We found that there are basically two main types of pool heaters: gas heaters and electric heaters. There are some differences between the two.

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