CEM S.A. manufactures and sells water heating systems for residential and commercial applications in the South America and the United States. Its products include instantaneous, tank, solar, hybrid, and electric water heating systems. The company also provides cooling systems, solar, and hybrid heat pumps; controls, pool, and spa heaters; and industrial boilers and commercial refrigeration equipment. The company was formerly known as Rheem Chile S.A. and it changed its name to CEM S.A. in December 2014. The company was incorporated in 2014 and is based in Santiago, Chile. CEM S.A. operates as a subsidiary of Rheem Manufacturing Company Inc.