American Standard® Water Heaters is the recognized brand of larger homeowners as the most reliable, for their unique water heating requirements. American Standard® Gas Water Heater, Series: GN Series, 40000 Btu/hr Heating, Natural Gas, 40 gal Tank, Spark Ignition, 3 in Vent, 38 gph Recovery, Energy Factor: 0.62, 3/4 in NPT Water Connection, 150 psi, Tall or Short: Tall, Ultra Low Nox: Yes, Magnesium Anode Rod/Steel Tank, 18-5/16 in Diameter.
• Vaporshield technology - Shuts off gas and air supply to heater to prevent prolonged vapor burn in combustion chamber should accidental or unattended ignition of flammable vapors occur outside the water heater
• Maintenance free
• Standard thermocouple
• Self-cleaning, Non-CFC foam insulated
• Heavy gauge steel tank, glass-lined tank, magnesium anode rod
• Factory installed dielectric hot and cold Water connections
• Brass drain valve, factory installed heat traps
• Temperature and pressure relief valve
• Factory installed energy cut-off system
• All models are certified at 300 psi test pressure and 150 psi working pressure
• 6 Year Limited Tank & Component Parts Warranty