Description Description Dunham-Bush C-525-G Hot Water Heater 1.5 inch water inlet and outlet 30 inch 4 tube exchanger coil Air is drawn through exchanger and exhausted through a 16.5 inch Duct fitting. 115 volt 1/8 Hp. Motor This item is in very good condition and appears unused, but we can't be sure. No manual or peripherals are included. View AllClose