American Standard® Water Heaters is the recognized brand of larger homeowners as the most reliable, for their unique water heating requirements. Larger residential homes require different water heating solutions, compared to typical residences and American Standard delivers. Our ongoing commitment to large residential property owners is to provide the highest quality products, services & value in the water heating industry. For over 130 years, American Standard products have been the most trusted & widely recognized brand across the United States. Architects, Contractors, Installers & Plumbers look to American Standard to manufacture dependable water heaters with revolutionary features. Our Residential products include Electric, Gas, Heat Pump, Point-of-Use and Ultra Low NOx Water Heaters in addition to replacement parts & accessories backed by our exceptional customer service and warranties for all of our product categories.

American Standard® Gas Water Heater, Series: GSN, 40000 Btu/hr Heating, Natural Gas, 50 gal Tank, Spark Ignition, 3 in Vent, 38 gph Recovery, Energy Factor: 0.6, 3/4 in NPT Water Connection, 150 psi, Tall or Short: Tall, Ultra Low Nox: No, Aluminum Anode Rod/Steel Tank, 20-5/16 in Dia

• 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, aluminum 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
• Low Nox