Heliodyne, Inc. has acquired a solid reputation of engineering and manufacturing quality solar water heating equipment for both residential and commercial applications. With offices and manufacturing facilities in Richmond, California, the company manufactures and assembles a variety of solar water heating products including the Gobi line of solar flat plate collectors and the Helio-Pak heat transfer appliances.

About us


Heliodyne is committed to focus purely on solar hot water, allowing us to be a true specialist in the industry. We strive for Excellence by Design™, where excellence is a standard applied to everything we do. And design is not only in our products, but all other aspects of our business such as production, distribution, customer support, and sales.

What We Do


Heliodyne is a leading U.S. manufacturer of solar water heating equipment.

Our offices and manufacturing plant are located in the beautiful San Francisco Bay Area. We manufacture and assemble a variety of solar water heating products. They encompasses not only flat plate collectors, but heat transfer appliances as well. All of our collectors and heat transfer appliances are SRCC certified, ensuring that our products are built to the highest standards.

The equipment we manufacture is suitable for all applications including residential, commercial, and industrial purposes.


HELIO-PAK - Closed Loop Heat-transfer Appliance

The Helio-Pak (HPAK) is an all-in-one heat-transfer assembly, specifically designed to simplify solar hot water systems and provide maximum heat transfer that is sixteen times faster than other heat transfer appliance on the market. The HPAK comes factory assembled and wired with all necessary components, making installation a trouble-free experience. Because the HPAK utilizes an external heat exchanger, it can often be adapted to the pre-existing hot ...

HELIO-FLO - Open Loop Heat-Transfer Appliance

The Helio-Flo is a heat-transfer appliance designed specifically for open loop active systems, with easy installation in mind, and heats sixteen times faster than any other heat transfer appliances on the market. It comes assembled with pump, Delta-T controller, two sensors, and two temperature gauges, for easy integration into any open loop solar hot water system.


Solar Simulation Software

Heliodyne now offers a powerful software tool to design, configure and specify a solar hot water system from your computer. Learn more about this revolutionary design tool available in the U.S., only from Heliodyne.

Company details

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Internationally (various countries)

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