Whirlpool US / American Water Heater Co. / Rheem Manufacturing Rheem Manufacturing Rheem Manufacturing Rheem Mfg. / Electrolux / Water Heater Division Rheem Mfg. / State Industries State Industries State Industries State Industries Inc. / Brand Kenmore Kenmore Kenmore Lochinvar Lochinvar Corp. / A.O. Smith Corporation / A.O. Smith Water Products Co. / AirGenerate American American American American Water Heater Co. / GE / O. Smith A.O. Smith Corporation / HP / /