10 Best Solar Powered & Panel Heaters for Swimming Pools

The best solar pool heater will cost you a little more, but considering how much you will save on your electricity bills, you can think about offsetting those expenses after a few years! However, this will depend on the number of electricity costs in your state.

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What Is the Best Solar Pool Heater of 2021

Comparing the Best Solar Pool Heaters on the Market?

Photo Title Price Buy
SunHeater S120U Universal Solar Pool Heater 2 by 20-Feet $167.00 Check Latest Price
Smart Pool S601 Pool Solar Heaters, Pack of 1, Black $249.26 Check Latest Price
SunQuest 2-2'X10' Solar Swimming Pool Heater $312.14 Check Latest Price
GAME 4721-BB SolarPRO Curve Solar Pool Heater $345.88 Check Latest Price
XtremepowerUS Inground/Above Ground Swimming Pool Solar Panel Heating System Check Latest Price
XtremepowerUS 90105 4"-inch X 10'feet Spa Heater nground Check Latest Price
Highest Performing Design - Universal Solar Pool Heater Panel Replacement $416.75 Check Latest Price
SunHeater Pool Heating System Two 2’ x 20’ Panels – Solar Heater for Inground and Aboveground Made of Durable Polypropylene, Raises Temperature, 6-10°F, S240U $299.99 Check Latest Price
Sun2Solar Ground Mounted Heating Solar Panel Check Latest Price
SunQuest 6-2X12 Solar Swimming Pool Heater Complete System with Roof Kits $974.55 Check Latest Price

Why Choose a Solar Pool Heater?

The solar pool heater will have an advantage over the pool heater with the gas pump since it uses one of the most powerful renewable energy sources known to man today, the sun. If you are lucky enough to live in a sunny area, the solar pool heater will be designed to capture the optimal energy for the sun.

#1. Best Solar Pool Heater – SmartPool-S120U Solar Pool Heaters

solar pool heaters for above ground pools




The SmartPool-S120U heater is uniquely designed with an efficient heat-moving cylinder and a solar panel that works flawlessly together. Installing it is anything but difficult. While it may be somewhat expensive for your budget, you have to remember that the SmartPool-S120U has a great reputation and has demonstrated the technology to back up its exhibition.

SmartPool-S120U is perfect swimming pools and can be used with any pool pump. The heater’s direct stream water circulation permits it to work fast. And because it’s suitable for a wide range of swimming pools, it’s a perfect option for anybody that’s looking for quality, durability, and efficiency in their solar pool heater.

  • Incredibly easy to install
  • Environmentally friendly
  • Compatible with a wide range of swimming pools
  • Features direct stream design for efficient water circulation
  • The large solar panels require a great deal of space.



#2. Solar Swimming Pool Heater – Smartpool SunHeater Solar Heating System for In Ground Pool

sunheater solar pool panels




The Smartpool SunHeater is one greater item that thought that it was easy to make our rundown and audit of the best heaters available. The Smartpool SunHeater can passively raise the pool’s temperature by as much as 15 degrees in less than a day.

The system uses a progression of tubes and panels, which are then associated with your pool pump. The large 80 square feet solar panels enables you to heat larger areas of water.

  • Up to 15 degrees temperature ascends under a day.
  • Suitable for all pools
  • Comes with interchangeable connectors for greater versatility
  • A direct stream system is easy to interface.
  • Passive activity with about zero running
  • Environmentally-friendly
  • Installation needs time and exertion.
  • The panel size is too large.



#3. Solar Pool Heaters for Above Ground Pools – SunQuest-2-2X10 Solar Swimming pool Heater

solar water heater for swimming pool




The SunQuest-2-2X10 traps heat in the collector, ensuring the water going through it gets most of the heat vitality captured. Yet, double up the number of collectors, or triple them, and you’ll have a warm pool in a day or two.

Installation is super easy. You needn’t bother with a mounting pack, and all installation accessories are incorporated. In any case, depending on your pool circumstance, you may need to get a couple of additional items, for example, a different pump, connectors, and hoses.

  • Easy to set up.
  • Installation accessories included
  • No mounting is required.
  • Ideal for a wide range of pools
  • Curved design and an unmistakable spread to maximize heating efficiency
  • Easy to deplete when not being used.
  • A bit pricey.
  • You may need multiple units.



#4. Solar Powered HEater – GAME-4721-BB Curve Pool Heater

solar pool heater panels for inground pools




If looks and designs are as essential to you, as the quality of construction and durability, then you should consider the GAME-4721-BB for a small pool. It is useful in both inground and above ground pools. The adjustable and foldable legs ensure it to be set for maximum exposure to the sun.

Its vitality-efficient design also incorporates twisting tubes that enable it to gather a significant measure of the sun’s heat in a short measure of time, which increases the pool temperature by 5 degrees in just 4 days. The vaulted shape makes it easy to install on your above-ground pool. You’ll also be happy to realize that this takes off pool heater is super easy to install and use, and this is in addition to its reasonable price tag. It’s a perfect option for any individual who’s looking for an eco-friendly yet effective and affordable pool heater.

  • Easy to install
  • Very well priced
  • Super-efficient
  • Features a unique vault design
  • Easy to install and work
  • Good for small pools



#5. Most Efficient Solar Pool Heater – XtremepowerUS Inground/Above Ground Swimming Heater System

best solar heater for above ground pool




The Xtreme power US Inground heater can be snared to any swimming pool. The number of panels you’ll need will rely upon the size of your swimming pool. That’s the minimal collector region important to warm your pool inside a reasonable measure of time.

Installation is somewhat repetitive. You’ll have to purchase a rooftop/rack mounting system and additional accessories to interface the heater to the pool. In extra bright weather, the water can get too warm for your solace.

So you basically have a double pool heater and cooler.

  • Compatible with most pool pumps.
  • It can be used with any pool.
  • Fast and efficient heating
  • It can perform double responsibility for heating and cooling.
  • Requires mounting unit and additional accessories for plumbing



#6. Solar Thermal Pool Heater – XtremepowerUS Spa Heater Swimming Pool Heater

best solar heater for inground pool




Highlighting a similar design set up and stylish as traditional solar panel rooftop systems, the way that this particular bit of technology has been arranged enables it to absorb the sun with an out of this world degree of efficiency – exploiting current solar technology to bring your pool temperature up in under an hour.

Durable, dependable, and perfectly built, if you plan on owning your home for quite a while and need to ensure that your solar force heating system is working.

The installation of this Xtreme power US heater is basic and straightforward, and you’ll have the chance to install these panels on your home just as on sheds, utility buildings, and carports. It’s designed to last a mess longer than almost anything else available.

  • Effortless installation, regardless of whether you have no experience.
  • Designed to last for a considerable length
  • Works with just about each sort of heating pump imaginable
  • More than pays for itself in record time.
  • The starting investment is somewhat higher.
  • It will require a semi-changeless installation process.



#7. Best Solar Hot Water Heater For Pool – Solar Pool Supply Universal Pool heater Panel

solar pool heater installation




Solar Pool Supply is a large panel stirs fast to heat. Because of its size, you may find that it takes up a lot of space.

You’ll also cherish its beautiful design, which looks great as well as makes it super easy to install all alone, too, without the need for professional assistance. The design also comes with direct stream Solar Pool Supply is super-efficient with regards to water circulation, hence sparing you hundreds of dollars in heating bills.

With everything taken into account, the Solar Pool Supply is an eco-friendly pool heating arrangement that’s designed to be installed in any kind or size of the pool. Besides, it’s sponsored by a 5-year warranty, which says a great deal regarding the producer’s degree of trust in the construction quality and execution of this system.

  • Cost-effective
  • Eco-friendly
  • Easy to install
  • Works with a wide range of pools and pool pumps
  • Can heat up your pool to 15 degrees in a super short measure of time
  • The panel is large and needs a great deal of space.



#8. Solar Panel Heater for Above Ground Pool – SmartPool-S240U Pool Solar Heater

passive solar pool heater




SmartPool-S240U is a different interpretation of trade heaters, utilizing the greenhouse impact of steam and vanishing to heat water quickly.

All things considered, these are amazing, and they’ll make as a lot of conceivable use as they can out of the vitality available. The heat inside the chamber also diminishes the danger of green growth or different problems, too, making them a moderately low-maintenance way to deal with the technology.

This does, in any case, require a pump, however, is one of the most efficient heating technologies out there. This is perfect for atmospheres where the available sun is less predictable in its amount.

  • Very efficient.
  • Unobtrusive.
  • Easy to set up.
  • Affordable.
  • Low maintenance.
  • It requires a pump.
  • It does require cleaning.



#9. Solar Pool Heater Panels – Sun2Solar Inground Solar Panel System

solar panel pool heater cost




This solar pool heater from Sun2Solar Inground is one of those rare finds that conveys on execution like an extravagant model while it comes at an absurdly low price. Aside from setting aside your cash in vitality bills, this system is one of the cheapest available and also one of the most in-demand because of its efficiency at heating up the pool water.

The main hitch we could discover with this pool is that it’s too small to effectively heat large-sized in-ground pools; however, you can generally take care of that problem by installing two of these rather than one. While the solar panel itself is very large, it works truly well with regards to absorbing daylight to be changed over into heat for your pool.

  • Very affordable
  • Super easy to set up and install
  • It can heat water in a short measure of time.
  • Versatile enough to install on all pools
  • It may require a diverter unit.



#10. Solar Pool Heater with Kits – SunQuest-6-2X12 Swimming Pool Heater Complete System

solar powered swimming pool heater




With such an affordable price tag and great functionality, the SunQuest-6-2X12 is a workhorse that will begin raising your pool temperature to more up to date fulfilling levels in the blink of an eye.

The SunQuest-6-2X12 associates effectively to your current format though you’ll need the administrations of a professional to handle the installation. It isn’t like you can’t really do this without anyone else’s help.

It is just that it may demonstrate a little piece difficult if you do. Aside from that, this is really extraordinary compared to other solar pool heaters we’ve seemed to be the exceptionally affordable system that can be used to heat small and medium pools of shifting sizes.

  • Suitable for both in-ground and above-ground use
  • Up to 15 degrees temperature rise
  • Interchangeable connectors make adaptability easy.
  • No pointless weight on your system
  • Great evaluating for great functionality and worth
  • May demonstrate somewhat difficult to install without anyone else.



Solar heated pools are the most effective application of solar energy these days. Compared to gas and electric heaters, solar energy heaters are the ideal process to heat water in a pool throughout the year. The costs associated with solar heating are much lower than normal pool heating methods.

We all love swimming; the best way to get the best swimming experience is to warm up your pool water so that you can swim comfortably, especially during cold days or early in the morning when water is still very cold. We have various ways one can use to heat the pool water. A solar pool heater is one of the ways you can use to heat your pool water in a cost-effective way; in fact, it is cheaper and eco-friendly compared to gas and electric heaters. The followings are the buying guides on buying pool heaters.

solar panel pool heater cost

Is a Solar Pool Water Heater Worth It?

You might have just completed constructing your pool, and you are wondering if installing a solar pool heater is a worthy investment. Investing in a solar pool heater is the best decision you can ever make as your means of heating water in your pool, solar pool heater at not just cost-effective means of heating water in your pool but also the best way to conserve our environment.

An environmentalist is encouraging people to start considering solar energy as an alternative to nonrenewable sources of energy. You will end up saving money that you would have otherwise spent on paying electricity bills, especially for those people who stay in regions where there are inflated electricity rates.

When Should I Turn on My Solar Pool Heater?

A solar pool heater should not be left on every time of the year. There are times when you don’t have to turn it off; the water will be too hot for you to swim in. Depending on the region you are living in, it is advisable to turn on your solar heater when the cold season is approaching.

What is A Solar Pool Heater, And How Do They Work?

A solar pool heater is a device that uses thermal energy coming from the sun to warm pool water, just like photovoltaic panels, this kind of solar heater is mounted on the roof.

A solar pool heater consists of the following items, a solar collector- a device where water is first circulated so that it can be heated by the sun, a filter that helps to remove the unwanted material from the water before it is pumped to via the collector, a pump- which circulates water through the collector and the filter and back to your pool and a control valve that diverts water via the solar collector.

Other types of water heaters for shower you may need:

How It Works

The working of a solar pool heater is not a complicated one; water is first pumped to through the filter to remove the debris and then through the collectors where the water is heated before it is directed back to the pool. During hot climates, these collectors can be used to cool down the water temperatures by circulating water through it at night.

Modern solar pool heaters come with an automatic valve that is used to divert to the collectors when the collector’s temperatures are higher than the pool temperature. When there is no temperature difference between the pool water and the collectors, water will simply bypass the collectors and return to your pool.

Solar pool collectors are not the same; they vary in terms of the material used to make them; you should choose one that is suitable for how you want to use it and the climate.

The Solar Heater In Above Ground And In-ground Pools

solar heater for above ground swimming pool

Pools can be either above the ground or above the ground; for each type, you will be required to have a different kind of solar heater installation. Sometimes we are forced to go for above the group pool due to lack of enough space to build an in-ground pool, but all of them work the same, but the above the ground pools work differently, given their large volume to the surface area, they have the capabilities of staying warmer than the in-ground pools.

Installing above the ground solar water heater is a simple process that involves cutting the return hose and then connecting it to the hose ends of the bypass kit. This is done so as to reduce the flow rate to the solar panels.

Installing in-ground pool solar heater is a bit tricky one; it requires some advanced planning to enable placement of 20’ or 10’ long solar panels and PVC plumbing to allow the water to move in and out of the solar panels.

How Much Do These Solar Pool Heaters Raise the Temperature of Water In a Pool?

The only challenge you will have to experience when you are using solar energy is that it is not precisely as for the case of gas or electricity. The amount of energy produced by the sun is always constant, but we have some other things or variables such as weather, atmospheric conditions, and randomness in water chemistry means there’s no perfect way to tell or predict how hot water will get.

The amount of water to surface area is another factor that determines and of the heater in use. Sheet heaters on a Sunny day tend to raise water temperature by about 10 to 15 degrees, but sometimes it can be more on a hot day.

How Many BTU Pool Heaters Do I Need?

The number of BTU required mainly depends on the amount of water in your pool, 1 BTU will raise one pound of water temperature by approximately 1 degree Fahrenheit, one gallon contains 8.33 pounds, this means that if your swimming pool holds 20000gallons, you will be demanded to use 166, 000 BTU in order to increase water temperature by one degree. You can further divide this number by twenty-four if you want to find out the amount of BTU you will be required to raise the pool water temperature by 1 degree for more than 24 hours.

There are a lot of questions that a solar pool buyer will have to ask themselves apart from the normal ones of knowing who the manufacture is. It is always recommended to buy a bigger one, the bigger, the better, a larger solar heater will heat your water faster than a small one, for example, a 300k BTU is likely to heater your water twice as a 150k BTU heater, but it will also burn gas twice.

Things to Consider Before Buying Solar Pool Heaters

Purchasing a solar pool heater is not a simple exercise; we have a lot of things that you have to put in mind before you settle for one. Below are some of the things to keep in mind.

diy solar pool heater

The climate

If you are in a Sunny area, then a solar pool heater is an excellent choice for you. However, if you are in cold areas, then it will not be the right choice for you.

The pool size

This is another thing you need to look for when buying a solar pool heater. The size of your pool matters a lot, if you intend to heat huge pool heaters then it will be best if you go for a bigger solar heater, but if you have a small pool, a small solar pool heater will still work for you. What you need the pool fie is another thing you have to remember here.


Expensive models don’t mean high quality but one that has the best features and available at a lower price.

The type of your pool

Is it above the ground or in-ground pool? If it is above the ground, then you don’t need to go for a powerful one as is can easily heart up with s small heater or sheets.


This is very important to remember; you need to buy a solar pool heater that has good warrant terms because we have a slot of things that cab GI wrong, make sure you will be in a position to be compensated in case something goes wrong or become faulty.


Buy from a seller that offers installation services; this is important as you will not be forced to run up and down, trying to find a professional to do the installation.

Po function

If it is a leisure pool, then you need to keep it around 88 to 90 degrees, this may sound hot, but for water, it is not that hot, but if it in an exercise pool, then you have to get one to keep the water between 78 to 85 degrees.

How Much Should You Expect to Pay For a Top Solar Pool Heater?

The price for solar pool heaters varies from one model to another. A top pool heater is a bit expensive, but this should not scare you away because, in the end, you will benefit from the high efficiency and low maintenance costs, which will and up saving you a lot of money. A top solar pool heater goes for around 3000$ and 800$.

What Size Heaters Should You Buy?

It is advisable to have half of your poor covered in solar panels. The surface area is the product of the width and length of your pool.

Different types of tankless water heaters:

Are Solar Pool Heaters Water Resistant?

Solar pool heaters are well encased to prevent the entry of water that can affect the functioning of solar panels.

solar pool heater cover

5 Tips for Taking Care of Your Swimming Pool Heater


Shut off your panel during hard freezes; this is important to necessitate trouble-free performance during the normal times of the year when you will likely want to enjoy swimming with your family.

Touch test

This is another useful tip for maintaining your heater; you should always check your heating system to ensure it is working correctly.

Regular maintenance

Regular maintenance is essential for your heater if you want to last longer and get value for your money.

Use a pool blanket

A pool blanket is a useful extra to buy for your pool, and It allows the pool to retain the heat for a long time, thus cutting on your operation cost as you will not have to heat it from time to time.

Maintain proper water flow rate

If you want your pool heater to function well, then you have to ensure the flow of water to your pool is constant. Otherwise, the heater will not work well.

How to Install a Solar Pool Heater

Installing a solar pool heater is not a complicated process, follow this procedure
1. The first thing you have to do is to unbox your panes carefully and connect them together
2. Firmly secure the panels to your roof using the provided hardware. Remember to attach the cross trap to hold down your panels in case of high winds.
3. Carefully cut the return pipe immediately after the filter and glue it on the check valve and the three-way diversion valve than is included in the solar heater control package.
4. On the opposite corner, connect another pipe directly opposite solar array, run it parallel to the top of the panels.
5. The next step is to run the exit pipe off the rack or roof towards the return line made in the third step.
6. Glue on one way valve before you connect the exit pipe into the return line so as to water from getting into the panel from the opposite direction.
7. The final step is to connect that exit pipe to the return line.

Types of Solar Pool Heaters

We have various kinds of solar pool heaters, they include;

1. Thermal solar collectors

This is the most used type of solar pool heaters. They are positioned on the roof, or sometimes they can be positioned nearer to your pool. It is the most affordable solar heater that is made from plastic or rubber matting. This type of heater is suitable for those people who live in a sunny and warm climate.

2. Evacuated tube collector

This is seen as the most efficient solar pool heater. Although it is more expensive than the first option, its working is efficient. It is more reliable in warming up your pool even in a colder climate.

Benefits of Solar Pool Heaters

Saves energy

A solar pool heater is the most effective way to reduce your electricity or gas consumption levels.

Helps the environment

Because solar is a renewable source of energy, by using solar energy, you will be conserving the environment from not using the other nonrenewable sources of energy.

Little maintenance

Because the heaters run efficiently, there will be no need to do regular maintenance.

You will enjoy the quiet.

They are the quietest heating options in the market right now.

Top 3 Best Solar Pool Heaters

Other Heaters You Will Need: