About SunSide

At SunSide™, we believe the best solutions are simple, effective, and sustainable.

Born from decades of experience in thermal engineering and renewable energy, SunSide is the world’s first plug-and-play solar heating system designed specifically for spas.

Our journey began with a question: How can we make spas—one of the most popular home luxuries—more energy-efficient?
Spas offer comfort, therapy, and social connection, but keeping water hot year-round consumes significant electricity. With rising energy costs and growing environmental awareness, we saw an opportunity to help spa owners lower bills and reduce impact—without sacrificing comfort.

So we created something entirely new.
SunSide combines high-efficiency solar collection, a compact heat exchanger, and a self-contained design that installs in under an hour and requires no plumbing changes. It can cut spa heating costs by 50–75%, often paying for itself within one to two years.

SunSide works for everyone in the spa ecosystem:
• Homeowners enjoy their spas while saving energy and money.
• Dealers gain an easy-to-sell, easy-to-install product with strong margins.
• Utilities reduce grid demand during peak periods.
• Manufacturers can integrate SunSide technology directly into new spa designs.

Developed and tested in the USA, with field trials in California and Colorado, SunSide™ is preparing for broad rollout in partnership with leading dealers, utilities, and industry veterans.

Thank you for joining us in making spas smarter, greener, and more affordable.
— The SunSide Team