A.O. Smith is a global leader applying innovative technologies and energy-efficient solutions to products manufactured and marketed worldwide. The company is one of the world’s leading manufacturers of residential and commercial water heating equipment and boilers, as well as a manufacturer of water treatment products for residential and light commercial applications. A. O. Smith is headquatered in Milwaukee, WI. APCOM a division of A O Smitth North America Water Heating (NAWH) , is a leading manufacture of component parts for residential and commercial water heaters . A O Smith Corporation emp...