About Aquatherm Industries, Inc.

About Us

pool solar heating system
The 1970s Oil Crisis forced Americans to rethink energy

A LUXURY WE CAN NO LONGER AFFORD

EARLY 1970s

Forty years ago, in the midst of an oil crisis, a small group of entrepreneurs had a thought; heating a pool with fossil-fuels had become a luxury this planet could no longer afford.
As any pool owner will tell you, an unheated pool is an unused pool. But, heating such a large volume of water to a comfortable swimming temperature takes a tremendous amount of energy – energy that comes from the refining and burning of fossil-fuels like oil and coal.
This energy comes at a great cost, to both our wallets and our environment.
The group of entrepreneurs, and the nation, looked to solar for a solution.
pool solar heating installation
Solar Industries, Inc. circa 1976

A "NEW CONCEPT" IN SOLAR

1976

Using solar energy to heat water was far from a new concept, but the technology of the time used expensive materials like copper. Additionally, these systems required costly heat exchangers due to pool chemicals.
So, the group formed Solar Industries, Inc., and set to work developing a new type of solar thermal collector – one made entirely out of polymer.
With its unique design, Solar Industries received the first patent ever awarded for a “sun-tracking tube-and-web polypropylene solar collector.”
Modern Plastics Magazine heralded the design and manufacturing process as a “new concept in the use of polymer for such an application.”
Seven-time Olympic Gold Medalist Mark Spitz (right) with Aquatherm President & Co-founder Dave Sizelove (left)

AQUATHERM INDUSTRIES, INC.

1989

In the 1980s, government subsidies combined with strong market demand resulted in a period of unprecedented growth for the US solar industry.
Unfortunately, when those subsidies were allowed to expire overnight, many in the industry were forced to close their doors.
Solar Industries, Inc., having extended its product offerings into copper collectors for domestic water heating, was among the casualties.
Luckily, a small group of employees saw the market potential of the original polymer product line. Backed by a private investor with a passion for environmental protection, the group acquired Solar Industries’ production equipment and formed Aquatherm Industries, Inc.
The Solar Industries name continues to live on as one of Aquatherm’s flagship brands.
pool solar heating solution
Aquatherm's 50,000 sq. ft. ISO-registered Facility

LARGEST IN U.S. SOLAR POOL HEATING

TODAY

Today, Aquatherm is the oldest and largest U.S. manufacturer of unglazed solar thermal collectors, and one of the leading suppliers of other cost-effective water heating technologies that minimize environmental impact.

Our core competency is the marketing, sales, and service of these systems for use on residential and commercial swimming pools around the world.

In addition to manufacturing many of the most popular brands of solar pool heaters, Aquatherm supplies the industry with a number of privately labeled products.

Thanks to our global network of dealers and distributors, we can proudly say “the sun is always shining on an Aquatherm solar heater.”

Why Aquatherm?

Owning a pool should mean more swimming and less worrying about heating costs. That’s why our solar pool heating systems are built to deliver dependable warmth using the free energy of the sun. Engineered for safety, durability, and long-lasting performance, our systems are designed to keep your pool at the perfect temperature, extending your swimming season without the high utility bills.

With Aquatherm, you can count on a proven, American-made product that helps you enjoy your pool more often, saves you money, and reduces your environmental impact—all while meeting the highest quality and safety standards in the industry. 

We understand your family’s safety is your top priority. That’s why every component in our system meets or exceeds the strict safety, durability and toxicity standard of NSF-50.

Your Plan for Extended Enjoyment

Your pool should bring your family together, not leave you shivering or worrying about bills. With Aquatherm, you can keep the water warm, the fun going, and your peace of mind intact — all while protecting the environment.

About Us FAQs

Aquatherm is the oldest and largest U.S. manufacturer of unglazed solar thermal collectors. With more than four decades of innovation and American-made quality, we combine proven technology with long-lasting performance and a global network of dealers.

Aquatherm Industries, Inc. was founded in 1989 by a team of visionaries who believed in the future of solar pool heating. They carried forward the pioneering polymer collector technology developed by Solar Industries, Inc. in the 1970s.


All of our solar pool heating systems are proudly manufactured in our 50,000 sq. ft. ISO-registered facility in the United States.

Aquatherm’s predecessor, Solar Industries, received the first-ever patent for a polypropylene “tube-and-web” solar collector, a design that transformed solar pool heating by making systems more affordable, durable, and chemical-resistant.


Solar heating uses the free, renewable energy of the sun to extend your swimming season without the ongoing expense of gas or electric heaters. This means lower utility bills, fewer environmental impacts, and more time enjoying your pool.


Yes. Our systems are engineered for pools of all sizes, from backyard pools to large commercial and municipal facilities.


By replacing fossil fuel-based heating with solar energy, Aquatherm systems reduce greenhouse gas emissions and help preserve natural resources, making pool ownership more eco-friendly.