How Solar Pool Heating Works

Simple. Dependable. Affordable.
solar pool heating diagram

Step 1: Professional Design & Installation

Your Aquatherm Dealer will design your solar heating system to achieve the desired pool temperature and swim season. A properly designed and installed system can raise your pool temperature up to 15° F (8° C).
Specialized solar thermal panels made of durable polypropylene, called collectors, are installed on a roof or ground rack so that they will receive 6-8 hours of sun per day.
Your Dealer will integrate the system with your pool’s existing filtration and automation equipment, providing a seamless and efficient heating process.
A typical system can be installed in less than one day by an experienced crew.
The heart of your solar pool heating system is smart automation. If your pool doesn’t already have an automation system, your Aquatherm Dealer can recommend and install one to suit your needs.
While manual operation is possible (and popular for smaller above-ground pools), automating your solar heater ensures optimal heat gain and prevents your pool from overheating, making it worry-free.
When the sun is shining, a valve directs pool water to the solar collectors, where it’s naturally warmed before flowing back into your pool.
When conditions aren’t right for solar heating, the system automatically bypasses the collectors, so you never have to worry about monitoring or adjusting anything.
With your solar pool heating system in place, you’ll experience a longer and more enjoyable swim season, all powered by free energy from the sun.
Say goodbye to chilly water that keeps you and your family out of the pool. Now, your pool will be consistently warm and inviting, giving you more opportunities for relaxation, exercise, and fun with friends and family.
Whether it’s an early morning dip, a late evening swim, or extending your swim season into the cooler months, your solar-heated pool is ready when you are.
Enjoy the comfort, savings, and sustainability of solar heating, and make the most of your backyard oasis!
In a hybrid heating system, solar energy preheats pool water to a higher baseline temperature, dramatically reducing the energy used by your gas or heat pump pool heater.
For attached or inground spas, solar can cut heat-up times in half, letting you enjoy a warm, relaxing soak at the drop of a towel!

FREE Solar Pool Heating Buyer’s Guide!

Our best customer is an educated pool owner! Get instant access to our comprehensive “Solar Pool Heating Buyer’s Guide,” including our 5-part video series, and be prepared to ask the right questions when you’re ready to speak with one of our trusted Dealers.

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How Solar Pool Heating Works FAQs

A properly designed and installed system can raise your pool temperature by up to 15°F (8°C), making the water consistently comfortable.
Specialized polypropylene solar collectors are typically installed on a roof or ground rack where they can receive 6–8 hours of sun each day.
While manual operation is possible (especially for smaller above-ground pools), automation ensures optimal heat gain and worry-free operation by automatically directing water through the collectors when conditions are right.
If conditions aren’t suitable for solar heating, the system automatically bypasses the collectors so your pool’s circulation continues without any manual adjustments.
Yes. In a hybrid system, solar preheats your pool water, reducing the energy needed from a gas or heat pump heater. This lowers costs and can even cut spa heat-up times in half.
Solar heating gives you a longer swim season, warmer and more inviting water, and significant energy savings — all while using free, renewable energy from the sun.