American Standard Natural Gas Water Heater, Power Vent, 76,000 BtuH Heating, Natural Gas, 1/2 Inch Gas Connection, 75 gal Tank, 0.60 Energy Efficient, 1 Inch NPT Water Connection, 1600 deg F, Steel, Dura-Glass. • Auto Non-Electric Gas Thermostat Adjustable to 160° F – When installed with a mixing valve, these water heaters can deliver