Rheem Manufacturing is a privately held company that produces residential and commercial heating, cooling, water heating, pool/spa heating and commercial refrigeration products. The company was founded in 1925 by brothers Richard and Donald Rheem in Emeryville, California. Rheem has manufacturing plants in the United States, Mexico, Brazil, Argentina, Singapore and China. Rheem products are sold in over 50 countries. The company has a strong focus on sustainability and has been recognized for its efforts in reducing greenhouse gas emissions and water usage.