6 Best Solar Pool Heaters for Inground Pool (Reviews 2020)

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Best Solar Pool Heaters for Inground Pool ReviewsAn inground swimming pool is an expensive investment. It can even be much more costly if you were to warm it. When the fall arrives, most pool owners start closing their swimming pools and preparing for winterization. Others buy expensive electric or gas-powered pool heaters to extend their swimming season. The units bring other maintenance costs making it quite costly.

But what if I told you there is a way to warm your swimming pool without breaking your bank? With the best solar pool heater, you can keep your inground swimming pool warm with zero bills to pay. The sun provides free energy, which is collected by the solar panels and transferred to your pool water. And that way, you have a warm swimming pool, and you can extend your swimming season.

It sounds great. Right? So, here comes the question; where or how do you buy the right solar pool heater for your inground pool? The answer is quite simple; read the whole of my article and get to know what I have prepared for you.

Top 6 Best Solar Pool Heater for Inground Pools in 2020

Here is a list of top-performing, durable, and robust solar pool heater models I have carefully selected specially to help you find the ideal model for your needs.

1. GAME SolarPRO 4721-BB Solar Pool Heater

GAME 4721 SolarPRO Curve Solar Pool Heater – for Above Ground Inground PoolsThe first best solar pool heater for an inground pool in my list is the GAME SolarPro. It’s a high-quality model designed to work with both inground and above ground swimming pools. One thing you will love about this solar pool heater is, it’s highly durable and robust.

It’s made from super-strong top-quality plastic materials, which allows it to withstand daily sun and outdoor element exposure. The SolarPro also features a curved design which creates optimal solar collection area for capturing free sun heat as the sun’s position changes.

On top of that, there is a transparent cover which works excellent locking warmth in a while deflecting the cooling winds. It also features adjustable and foldable legs, which allow you to position the solar heater for optimal sun exposure.


  • Ideal for both above and inground pools
  • High-quality, durable construction
  • Foldable and adjustable legs
  • Convenient curved design
  • Top-quality solar panels


  • Designed purposely for Intex and Bestway pools

2. XtremepowerUS Pool Solar Panel Heating System

XtremepowerUS Solar Panel Heating System – IngroundAbove Ground Swimming PoolIf you’re looking for a faster way to warm your inground swimming pool, here is a model ideal for you. The XtremepowerUS Pool Solar Heating System is a kit made of extremely high-grade materials proven to last for years in all weather conditions.

It relies on the pool pump and filtration system to circulate water through its solar panels. As a cost-effective and environmentally friendly solar pool heater, this unit requires low to zero maintenance.

With it, you have a chance to extend your swimming season and at a low cost. What’s more, the solar panel is made from durable, lightweight, and flexible polypropylene material. The construction ensures they capture the sun’s heat well and also stay in shape after frequent exposure to the sun.


  • Ideal for both Inground/Above Ground pools
  • Extremely high-grade construction
  • Low or zero maintenance
  • Lightweight and Flexible
  • Optimized heat transfer


  • Require Diverter Kit for pumps above 1.5 HP

3. Smartpool SunHeater S601P Solar Heating System

Smartpool S601P SunHeater Solar Heating – System for In Ground PoolMy next model is the high-quality Smartpool SunHeater solar heating system designed for inground pools. It’s a system that you can use to collect the free heat from the sun and use it to warm your swimming pool.

It brings an economical and cost-effective way of extending your swimming season. As an easy to set up and install, the Smartpool SunHeat solar heat uses the high-grade polypropylene heat collector for reliable pool heating.

Its’s direct-flow and single header hole allow each tube heating maximizing the heat transfer. It also raises the pool temperature between 4-6 degrees Celsius. It’s a perfect pool accessory for warming your inground swimming pool.


  • Polypropylene heat collector
  • High-quality and durable
  • Direct Flow System
  • One Header Hole


  • Installation kit required
  • Professional installer needed

4. Sun2Solar Heating Solar Panel System

Sun2Solar Ground Mounted Heating Solar Panel System – for Above Ground Inground PoolsHere is another model that will give you free heat for your pool is the Sun2Solar Heating Solar Panel System. It’s designed to be used on both in-ground and above-ground swimming pools.

It comes with every hardware needed for the installation and mounting and comes in two 2-foot by 20-foot panel, 4-foot by -20-foot unit in total. The panels are constructed from lightweight, durable polyolefin, which withstand long hours and frequent exposure to the sun.

Another thing, the tube construction creates a vast surface area that optimizes heat transfer from the sun to your swimming pool. You need a solar cover for maximized efficiency, and you can join extra panels if needed.


  • Large surface area tube construction
  • Lightweight, flexible and durable
  • High-quality panel construction
  • Maximized heat collection
  • Optimized heat transfer


  • Professional installation recommended
  • Not for use with high horsepower pump

5. SunQuest 6-2X12 Solar Pool Heater

SunQuest 6 2X12 Solar Swimming Pool Heater – Complete System with Roof KitsThe SunQuest Solar Pool Heater that comes with a complete system with roof kits is another model ideal for warming your inground pools. It’s a great unit that captures the free energy from the sun for your heating swimming pool, eliminating heating costs.

It relies on the pool circulation system to circulate the water through the panels for heat transfer. One thing that makes it outstanding among other solar pool heaters is the Premium quality and superior technology.

With these two, the solar heater delivers the highest rated performance and top reliability. And the professional-grade quality panels provide the best heat capturing and stay in shape for a very long time.


  • Compatible with an existing pool pump
  • Easy do-it-yourself installation
  • Better water circulation
  • MAX-FLOW design
  • 2-inch OD headers


  • Ideal for small-sized swimming pools

6. XtremepowerUS Solar Pool Panel Heating System

XtremepowerUS Solar Panel Heating System – IngroundAbove Ground Swimming PoolHere is another best solar pool heater, the XtremepowerUS Solar Panel Heating System. It’s a powerful, reliable, and robust solar pool heater that brings you an easy and cost-effective way of keeping your pool warm.

With this unit, you’re able to raise your pool water temperature by 10-15 degrees, depending on location. It works with most above and inground swimming pools. Its quick connect design allows for easy assembly.

I love the fact that its panels are built using high-grade materials ideal for extended durability and unbeatable outdoor performance. You can install the panels by yourself, but professional installation is recommended.


  • Extremely high-grade construction
  • Convenient and cost-effective
  • Works with most pool pumps
  • Quick-connect design
  • Easy assembly


  • Professional installation recommended

Best Solar Pool Heater for Inground Pools: Buying Guide

When you are evaluating the above best solar pool heater for inground pool models, you will realize that there some similarities and also some vast differences. That calls for you to be extra keen while selecting the model to buy. For a better and precise decision making, you must consider the following aspects.

1) Pool Size and Location

The solar heating capabilities will be determined by how big your swimming pool is and the temperature difference from your location. Typically, a small pool solar heater will be well suited for a little or maybe a medium-sized swimming pool. However, if your swimming pool is located in an area where the temperature goes too low, then you’ll need a sizeable solar heater unit. You can also join two to three solar panels to create a more prominent heating unit.

2) Pool Function

What is the primary purpose of your swimming pool? Is it a recreational or sport and exercise swimming pool? The different functions help in determining how often your swimming needs heating. For a recreational purpose, you can use a small solar pool heater. But with a commercial, sport, or exercise swimming pool, you will need something more significant, ideal for reliable heat transfer.

3) Build Quality and Durability

The next aspect to consider is the build quality as it affects the unit functionality, efficiency, and durability. For a solar heater, you need to check on the framing and the solar panels. The two need to feature sturdy, UV-resistant materials so that they can withstand frequent sun exposure. When it comes to heat capture and transfer, the solar panels need to go with the ideal solar heat absorbing material like premium polyolefin and Polypropylene.

4) Temperature rise

A solar pool heater is supposed to increase your pool water temperature to a swimmable warmth. You need to consider the amount of heat rise the solar pool heater will give you before buying. And to do that, you will need to know the temperature difference you need first. An easy way of doing this measures the pool water temperature at the lowest, and subtract it from your desired value. The answer you get is the ideal temperature difference you need. Mostly, the best solar pool heater for an inground pool can give you between 5-15 degrees in a couple of days.

5) Installation Difficulty

When you’re installing a solar panel, the process shouldn’t be complicated or hard to carry out, and that’s what you need to check while buying the solar pool heater. The option of hiring a professional should be there, yes, but it also needs to be a do-it-yourself thing.

Frequently Asked Question (FAQs)

Is an inground solar pool heater worth it?

Solar energy is the most effective way of heating your swimming pool. With this, you do not have to pay anything since solar energy is entirely free. And to eliminate additional purchases, solar systems use the pool existing filtration system.

How much will my solar panel last?

Its lifespan depends on the usage, place of installation, service, and maintenance, and lastly, the build quality. In general, solar pool heaters for inground pools are expected to last over 10-years, with some even serving for 20 years plus.


You now have a reason to smile; with any of the above best solar heater for inground swimming pool, you have the chance to extend your swimming season. You don’t have to be worried about getting in cold pool water again. Get one for yourself, and next, you know you’re spending all the fall seasons swimming. Good Luck!

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About the author

Sharif Miah

I am Sharif, 22, a student, currently doing the BBA program as well as an online Blogger. I am an adorable fan of swimming and also love any water sports -surfing, scuba diving, kite surfing & paddle boarding. I love to share my experiences with people. I hope you are enjoying my information and lessons!

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