About Aquatherm Industries

“Our goal was never to be the biggest… but the best at what we did.”

– Dave Sizelove, President & Co-Founder

From Humble Beginnings


Collector production area – circa 1977

Over 35 years ago, a small group of entrepreneurs had a thought; that someday, heating a pool with a conventional fossil-fuel heater would become a luxury we can no longer afford. But as most pool owners will tell you, an unheated pool is an unused pool. The group immediately began work on what would become the Solar Industries Solar Pool Heating System, a long lasting, cost effective polymer solar heater for swimming pools.

With its unique design, the SI Collector 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.”

The Most Trusted Name in Solar Pool Heating


Our 50,000 sq. ft. manufacturing facility in Lakewood, NJ

Today, Aquatherm Industries is an ISO 9001:2008 registered corporation, and has become the most trusted name in the solar pool heating industry. All material is processed and assembled under one roof at our 50,000 square foot facility in Lakewood, NJ. This “pellets to pallets,” vertically-integrated approach gives us total quality control, and assures collectors and components of the highest performance and quality.

Our success has been built around the strength of our international network of Dealers and Distributors. Our solar heating systems can be found on over 500,000 pools around the world, helping pool owners to maximize their season – as well as their investment in a swimming pool.

A Letter from Dave Sizelove, Aquatherm President & Co-Founder

Thank you for your interest in Aquatherm Industries. For over 20 years, we have defined ourselves as a “customer-intimate” organization; focusing on delivering what our customers are asking for, not short-sighted market trends. We firmly believe that heating a swimming pool with a fossil fuel heater is a luxury that we can no longer afford.

Why should you do business with us? It’s been said, “people don’t buy what you do, they buy why you do it.” Every day, we wake up with a sense of why we come to work: to inspire others and provide value to our customers; to encourage and develop an entrepreneurial spirit; to be part of something bigger; and to make a contribution to the communities in which we live.

As an ISO 9001:2008 Registered Company, Aquatherm is committed to continual improvement in everything we do. The work we’re doing right now is better than the work we did a year ago, and the work we’ll be doing in the future will be even better than the work we’re doing today.

Are we better than our competition? If you believe what we believe – that a manufacturer should provide value to you, help you grow your business to the level you want it to be, and give you the opportunity to be part of something bigger – then we’re better. If you don’t believe what we believe, then we’re not better. Our customers don’t buy what we do, they buy why we do it.

Aquatherm does not pursue one-time transactions, but cultivates long-term relationships between ourselves and our customers. Together, we specialize in satisfying unique needs which, often by virtue of our close relationships and shared intimate knowledge, we are able to satisfy.
Our goal is to find customers who believe what we believe, and work together so that we can all succeed. We’re looking for people to stand shoulder-to-shoulder with us in pursuit of the same goal.

Aquatherm is the largest U.S. manufacturer of solar pool heating systems, and the preeminent leader in polymer technologies for solar heating applications. Our core competency is the marketing, sales, and manufacturing of low-temperature solar thermal collectors for use on residential and commercial swimming pools.

Dave Sizelove, President
Aquatherm Industries, Inc.