American Water Heater Company has the capability to produce thousands of water heaters each day. The company is a manufacturer of water heaters and related products. With research and development, manufacturing and corporate offices located in Johnson City, Tenn., American offers a comprehensive line of gas and electric water heaters for residential and commercial applications. The company also features FlameGuard water heaters that are equipped with a safety system designed to reduce the risk of igniting gas fumes. FlameGuard water heaters are available in 30-, 40- and 50-gallon units. A logical extension of American's manufacturing operation is American Parts Supply. Using factory-authorized replacement parts, American offers a full line of parts to retailers, professional plumbers and wholesalers worldwide. The company is a subsidiary of GSW, a manufacturer of water heaters, pumps and building products, based in Oakville, Ontario.