A History of Comfort: Brothers Richard and Donald Rheem founded Rheem Manufacturing Company in Emeryville, CA, in 1925. While the company has produced a number of products in its nearly 100 years of operation, Rheem is currently the only manufacturer in the world that produces heating, cooling, water heating, pool & spa heating and commercial refrigeration products, and it is the largest manufacturer of water heating products in North America. Award-Winning Innovations: From industry-leading technologies to next-generation energy efficiencies, Rheem has been a pioneer in developing some of the most innovative advancements in heating, cooling and water heating. With a long list of award-winning solutions, Rheem continues to deliver advanced comfort, savings and experiences to our customers—just as we’ve done for nearly 100 years. A Trusted Family of Brands: Both in the US and abroad, innovative products from the Rheem family of brands lead the industries they serve. To maintain our leadership position—regardless of the brand badge affixed to them—our products must always be unique in the marketplace, relevant to our customers’ lifestyles, and authentic to our company’s values.