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Solar heating is becoming the trendiest thing in the United States. These heating systems are being used for both domestic and commercial purposes.

To cater with the demand of the heaters, a number of solar water heater manufacturers have established their roots in the country. This is in addition to the suppliers of the same water heating systems.

Here is a list of the top solar water heater manufacturers and suppliers in the USA


1. Apricus

1150 S Milliken Ave, Ontario, CA 91761, United States

With installations in over 30 countries, Apricus is a major player in the solar hot water manufacturing field worldwide. Apricus sells all parts to a solar hot water system, and they offer both evacuated tube and flat plate collectors.

2. Rheem Manufacturing

4100 S Zero St, Fort Smith, AR 72908, United States

Rheem is a large U.S. company producing a range of water heating products, and they have a small line of solar hot water systems and components available. They offer two complete packages – one with an electric backup, and one single tank option with gas backup. The included solar collectors are flat plate models. In addition to their two complete packages, Rheem offers three solar hot water storage tanks to purchase individually.

3. AET

5490 US-75, Independence, KS 67301, United States

AET (short for Alternate Energy Technologies) has been around since 1975 selling solar thermal products. Their main product is their EagleSun Systems deal, a package solar hot water installation. AET claims their EagleSun Systems are designed to last 30 to 50 years, an impressive lifetime for solar hot water. They only manufacture flat plate solar collectors, but offer both direct and indirect system setups.

4. SunEarth

8425 Almeria Ave, Fontana, CA 92335, United States

Another company that has been active since the 1970s, SunEarth manufactures and sells complete solar hot water systems with flat plate solar collector technology. Additionally, SunEarth offers both direct and indirect solar hot water systems. In addition to solar hot water, SunEarth manufactures and sells complete solar pool heating setups.

5. Kingspan

302 Goetz Ave, Santa Ana, CA 92707, United States

Kingspan was founded in Ireland in the 1960s and expanded to the United States in 2008 as Kingspan USA. One of the largest companies on this list, Kingspan manufactures sustainable building solutions and technologies, from ductwork to moisture management systems. Within the solar hot water part of their business, they manufacture evacuated tube and flat plate collectors, but no other solar hot water system components.

6. Stiebel Eltron

17 West St, West Hatfield, MA 01088, United States

Stiebel Eltron produces many products building technologies, but focus more specifically on renewable heating and cooling solutions like tankless water heaters. They sell complete solar hot water kits with flat plate and evacuated tube solar collectors, and also offer individual components for a solar hot water installation. Stiebel Eltron was founded in Germany, but sells products in the United States.

7. SunMaxx Solar

15 Catherwood Rd, Ithaca, NY 14850, United States

For DIY-minded shoppers interested in solar hot water heating systems, SunMaxx Solar (founded as part of Silicon Solar in 2006) is one of the top companies producing system components. They offer solar hot water kits with flat plate or evacuated tube solar collectors, and encourage homeowners to install their systems themselves or hire a recommended professional. You can also buy individual components for a solar hot water system from SunMaxx.

8. Resol

2801 W Main St, Independence, KS 67301, United States

The most specialized company on this list, Resol only produces solar hot water controllers, but are a dominant player in the controller market. Founded in Germany in 1977, Resol has expanded their products to more than 60 countries, with over 3 million systems worldwide including a Resol controller. It also has its office in the USA for supplying solar water heater systems.

9. Heliodyne

4910 Seaport Ave, Richmond, CA 94804, United States

A U.S. founded and based company, Heliodyne is a specialized solar hot water manufacturer with dealers in most states. They offer flat plate collectors, storage tanks, and control units for solar hot water installations. Established in 1976, they are one of the older companies on this list, and one of a few to specialize only in solar hot water products.

10. SunEarth

8425 Almeria Ave
Fontana, CA 9233

Since 1978, SunEarth has continuously built industry leading solar hot water collectors, components, and packaged systems. Every SunEarth product is constructed to exacting standards with the world’s harshest climates and environmental conditions in mind. Our innovation in residential and commercial solar hot water heating solutions are recognized throughout the industry for their performance, durability, and sleek design. SunEarth is a global leader in renewable energy technology, offering more ICC-SRCC certified system options than anyone else in the world.