When it comes to the top 10 solar water heater manufacturers and suppliers, there are several well-established companies offering different solar thermal technologies, products, and manufacturing capabilities. Choosing the right supplier is important for businesses looking for reliable products, competitive pricing, and long-term sourcing partnerships.

If you’re looking for a reliable solar water heater manufacturer or supplier, you’ve come to the right place.

In this blog post, we’ll not only list the top 10 solar water heater manufacturers and suppliers from around the world but also explore their main products, manufacturing strengths, specialization, and more.

Now, let’s take a look!

1. Riwatt Solar Co., Limited

• Address: China
• Main Products: Solar Water Heaters, Flat Plate Solar Water Heaters, Split Solar Water Heating Systems, Solar Collectors
• Specialization: OEM and ODM
• Website: Riwatt Solar Co., Limited

A Trusted Solar Water Heater Manufacturing Partner

Riwatt Solar Co., Limited is a Chinese solar water heater manufacturer offering solar thermal solutions for residential and commercial applications. We focuses on developing different types of solar water heating systems to meet the requirements of international customers and distributors.

Innovative Features

Riwatt offers several solar water heating technologies, including integrated pressurized systems, non-pressurized systems, flat plate solar water heaters, and split solar water heating systems. Our product selection also includes solar collectors designed for different installation requirements and hot water applications.

Strength in the Market

Our company supports international businesses through its OEM and ODM services, allowing buyers to explore customized product configurations for their own brands and target markets. Our diverse product portfolio makes it a potential sourcing partner for distributors, wholesalers, and solar energy businesses.

Why Buyers May Consider Riwatt?

Riwatt offers multiple solar water heating solutions under one manufacturing portfolio. Our product variety, customization services, and focus on international buyers make it worth considering for businesses seeking a Chinese solar water heater supplier.

2. Rheem Manufacturing Company

• Address: Atlanta, Georgia, USA
• Main Products: Solar Water Heaters, Solar Collectors, Storage Tanks, Water Heaters
• Specialization: Residential and Commercial Water Heating
• Website: Rheem Manufacturing Company

A Trusted Solar Water Heater Manufacturing Partner

Rheem Manufacturing Company is an American manufacturer specializing in residential and commercial water heating solutions. Established in 1925, the company has developed a broad portfolio of products, including conventional water heaters and solar water heating systems for different applications.

Innovative Features

Rheem offers solar water heating packages that combine solar collectors, storage tanks, pumps, controllers, and backup heating components. Its SolPak systems are designed to capture solar energy and provide hot water for residential applications. These integrated components help simplify system selection and installation.

Strength in the Market

Rheem has an established position in the international water heating industry, supported by its manufacturing experience and broad distribution network. Its experience in different water heating technologies makes it a recognized supplier for residential and commercial customers.

Why Buyers May Consider Rheem?

Rheem is worth considering for buyers seeking established water heating technology, integrated solar heating packages, and different system configurations. Its experience in residential and commercial water heating makes it a relevant option for various hot water projects.

3. A. O. Smith Corporation

• Address: Milwaukee, Wisconsin, USA
• Main Products: Water Heaters, Solar Thermal Systems, Solar Collectors, Storage Tanks
• Specialization: Residential and Commercial Water Heating
• Website: A. O. Smith Corporation

A Trusted Solar Water Heater Manufacturing Partner

A. O. Smith Corporation is an American manufacturer with extensive experience in water 

heating and water treatment technologies. Founded in 1874, the company serves residential 

and commercial markets through its broad portfolio of water heating equipment and related solutions.

Innovative Features

A. O. Smith’s water heating technologies include energy-efficient systems designed for different installation requirements. Its solar thermal offerings in selected markets combine solar collectors with water storage and supporting equipment to utilize renewable energy for hot water production.

Strength in the Market

The company has an international presence supported by manufacturing facilities, technical expertise, and distribution operations across multiple regions. Its long history in water heating technology and experience in commercial applications contribute to its position in the global water heating industry.

Why Buyers May Consider A. O. Smith?

A. O. Smith may be suitable for buyers looking for an established water heating manufacturer with extensive industry experience. Its engineering capabilities, international operations, and diverse heating product portfolio make it a company worth evaluating.

4. Ariston Group

• Address: Milan, Italy
• Main Products: Solar Water Heaters, Solar Thermal Systems, Heat Pump Water Heaters, Water Heating Equipment
• Specialization: Renewable Heating and Domestic Hot Water Solutions
• Website: Ariston Group

A Trusted Solar Water Heater Manufacturing Partner

Ariston Group is an Italian company specializing in heating, water heating, and thermal comfort solutions. It serves residential and commercial customers through an international business network and a product portfolio that includes conventional and renewable energy-based heating technologies.

Innovative Features

Ariston develops solar thermal systems designed to collect solar energy and convert it into usable heat for domestic hot water applications. Its product portfolio includes solar collectors, storage solutions, and integrated heating technologies that can work alongside conventional water heating equipment.

Strength in the Market

Ariston has developed a strong international presence through its manufacturing operations, product development, and distribution network. Its experience in renewable heating technologies and commitment to energy-efficient solutions support its position in the global thermal comfort industry.

Why Buyers May Consider Ariston?

Ariston is worth considering for buyers interested in established solar thermal technology and energy-efficient water heating equipment. Its international experience, diverse product portfolio, and focus on renewable heating solutions make it relevant for residential and commercial projects.

5. Bosch Thermotechnology

• Address: Gerlingen, Germany
• Main Products: Solar Thermal Collectors, Solar Heating Systems, Hot Water Storage Tanks, Heating Equipment
• Specialization: Solar Thermal Technology and Integrated Heating Solutions
• Website: Bosch Home Comfort

A Trusted Solar Water Heater Manufacturing Partner

Bosch is a German technology company with extensive experience in heating and domestic hot water solutions. Through its Home Comfort business, the company provides heating technologies and solar thermal equipment for residential and commercial buildings.

Innovative Features

Bosch offers solar thermal components such as flat plate collectors, solar controllers, pump stations, and hot water storage tanks. These components work together to capture solar energy, transfer heat, and store hot water for household and building applications.

Strength in the Market

Bosch benefits from its established engineering background, international brand recognition, and experience in heating technology. Its integrated product approach allows solar thermal equipment to work alongside other heating systems, providing flexibility for different building requirements.

Why Buyers May Consider Bosch?

Bosch may be a suitable choice for buyers seeking solar thermal collectors and integrated heating technologies from an established manufacturer. Its engineering expertise, product development capabilities, and international market presence make it a recognized name in the heating industry.

6. Himin Solar Energy Group

• Address: Dezhou, Shandong, China
• Main Products: Solar Water Heaters, Evacuated Tube Collectors, Split Solar Water Heating Systems, Solar Collectors
• Specialization: Solar Heating Project Solutions and Product Supply
• Website: Himin Solar Energy

A Trusted Solar Water Heater Manufacturing Partner

Himin Solar Energy Group is a Chinese manufacturer specializing in solar thermal and solar power technologies. The company has extensive experience in developing solar heating systems for residential, commercial, and industrial applications. Its product portfolio serves customers with different hot water requirements and installation needs.

Innovative Features

Himin offers several solar water heating technologies, including evacuated tube collectors, split solar water heating systems, and solar water heaters. Its systems use different components, such as solar collectors, storage tanks, controllers, and supporting equipment, to provide hot water for various applications.

Strength in the Market

The company has developed its presence in international solar energy markets through its manufacturing capabilities and broad product portfolio. Its experience in solar thermal technology and project-based solutions makes it a relevant supplier for distributors, contractors, and renewable energy businesses.

Why Buyers May Consider Himin?

Himin offers a range of solar water heating products for different residential and commercial requirements. Its experience in solar thermal technology, product variety, and manufacturing capabilities make it worth considering for businesses seeking a Chinese solar water heater supplier.

7. SUNRAIN Group

• Address: Lianyungang, Jiangsu, China
• Main Products: Solar Water Heaters, Solar Collectors, Split Solar Heating Systems, Heat Pump Water Heaters
• Specialization: Solar Thermal and Clean Energy Solutions
• Website: SUNRAIN Group

A Trusted Solar Water Heater Manufacturing Partner

SUNRAIN Group is a Chinese clean energy company specializing in solar water heating and other renewable energy technologies. Established in 1999, the company develops products for residential and commercial applications. Its experience in solar thermal technology supports customers looking for different hot water and heating solutions.

Innovative Features

SUNRAIN offers various solar water heating systems, including non-pressurized systems, pressurized heat pipe systems, and flat plate solar water heaters. Its product portfolio also includes U-pipe collectors, heat pipe collectors, and split solar heating systems designed for different installation requirements.

Strength in the Market

The company serves international customers through its global distribution network and diverse clean energy portfolio. Alongside solar water heating products, SUNRAIN also develops heat pump solutions, allowing businesses to explore different technologies for hot water production and heating applications.

Why Buyers May Consider SUNRAIN?

SUNRAIN provides multiple solar water heating configurations along with related clean energy products. Its international market presence, product diversity, and experience in solar thermal technology make it a potential sourcing partner for distributors, wholesalers, and solar energy businesses.

8. GREENoneTEC Solarindustrie GmbH

• Address: St. Veit an der Glan, Austria
• Main Products: Flat Plate Solar Collectors, Large-Scale Solar Collectors, PVT Collectors, Solar Mounting Systems
• Specialization: OEM and Customized Collector Solutions
• Website: GREENoneTEC

A Trusted Solar Water Heater Manufacturing Partner

GREENoneTEC Solarindustrie GmbH is an Austrian manufacturer specializing in solar 

thermal collectors and related equipment. The company has extensive experience in the solar industry and supplies products to heating system manufacturers, solar energy businesses, and project developers.

Innovative Features

GREENoneTEC manufactures flat plate solar collectors, large-scale collector systems, and PVT collectors. Its product portfolio also includes mounting solutions and customized collector configurations. These products are designed for different solar thermal applications, including residential heating and larger commercial projects.

Strength in the Market

The company focuses on collector manufacturing and OEM solutions for international customers. Its production capabilities and specialized experience in solar thermal technology make it an important supplier for businesses that manufacture or integrate complete solar water heating systems.

Why Buyers May Consider GREENoneTEC?

GREENoneTEC is worth considering for businesses seeking specialized solar thermal collectors and customized OEM products. Its manufacturing experience, collector technology, and focus on business customers make it a relevant sourcing option for solar system manufacturers and project suppliers.

9. SunEarth, Inc.

• Address: Fontana, California, USA
• Main Products: Solar Thermal Collectors, Solar Water Heating Systems, Solar Pool Heating Systems, Storage Tanks
• Specialization: Solar Thermal System Solutions
• Website: SunEarth, Inc.

A Trusted Solar Water Heater Manufacturing Partner

SunEarth, Inc. is an American manufacturer specializing in solar thermal technology and 

solar water heating products. Established in 1978, the company has developed solutions for residential, commercial, and industrial applications. Its product range focuses on using solar energy for water heating and other thermal requirements.

Innovative Features

SunEarth offers solar thermal collectors, complete solar water heating systems, storage tanks, pump stations, and system controls. Its product selection supports different installation requirements, including domestic hot water production, commercial facilities, and solar pool heating applications.

Strength in the Market

The company has built its market position through its specialization in solar thermal products and long-standing industry experience. Its focus on collectors, system components, and complete solar water heating solutions allows it to serve installers, distributors, and commercial project developers.

Why Buyers May Consider SunEarth?

SunEarth offers a focused range of solar thermal products backed by decades of industry experience. Its collectors, system components, and complete water heating solutions make it worth considering for businesses looking for an American solar water heating manufacturer.

10. Solahart

• Address: Australia
• Main Products: Rooftop Solar Water Heaters, Split Solar Water Heating Systems, Heat Pump Water Heaters, Commercial Solar Hot Water Systems
• Specialization: Residential and Commercial Hot Water Solutions
• Website: Solahart

A Trusted Solar Water Heater Manufacturing Partner

Solahart is an Australian solar water heating brand with a history dating back to 1953. The company specializes in renewable hot water technologies and provides solutions for residential and commercial customers. Its experience in solar water heating has helped it establish a recognized presence in the industry.

Innovative Features

Solahart offers rooftop solar water heaters, split solar water heating systems, and heat pump water heaters. Its product portfolio includes different configurations designed to meet household hot water requirements, while its commercial solutions support larger hot water applications.

Strength in the Market

The company has developed an international presence through its dealer and distribution network. Its long experience in solar water heating, combined with a wider range of renewable hot water products, makes it a recognized brand in the Australian and international markets.

Why Buyers May Consider Solahart?

Solahart offers different renewable hot water solutions supported by decades of experience in solar water heating. Its residential and commercial product range, established brand presence, and variety of system configurations make it worth considering for buyers seeking a solar water heating supplier.

Final Thoughts

In summary, all 10 solar water heater manufacturers and suppliers listed above offer different products and capabilities for residential, commercial, and industrial applications. However, if you are looking for a reliable Chinese manufacturer offering a wide range of solar water heating solutions, OEM/ODM services, and competitive pricing, we recommend Riwatt Solar’s solar water heaters.

Whether you need flat plate solar water heaters, split solar heating systems, or customized products for your own brand, Riwatt can help you explore suitable solutions.

Contact Riwatt Solar today to discuss your requirements and request a quotation!