A. O. Smith's Signature 300 Series 50-Gallon Gas Water Heater with Low NOx Atmospheric Vent provides efficient, reliable hot water for households with 5+ people when sized appropriately. The environmentally friendly 40,000 BTU low nitrogen oxide gas burner delivers 75 gallons of hot water in the first hour. A uniquely designed damper door maintains the overall heat and efficiency by stopping cool air from traveling through the flue in standby mode. This flue damper model doesn't require power, making it as easy as a standard atmospheric model to install. A. O. Smith's natural gas 50-gallon water heater has a built-in safety system to reduce the risk of accidental flammable vapor ignitions. A factory-installed temperature and pressure relief valve and tamper-proof drain valve further ensure safe operation. This model is built to last. It features Tank Guard® which is designed to provide ultimate tank protection and increase lifespan of the water heater. This added protection comes with a 12-year limited warranty for additional peace of mind. Call 1-877-GOLowes to get this water heater installed.
Delivers the ideal amount of hot water for households with 5+ people when sized appropriately
Fitted with an automatic flue damper that opens and closes automatically to increase efficiency and reduce heat loss in standby mode
Simple installation that uses standard 3-in or 4-in vent ducting and requires no power
Features an environmentally friendly 40,000 BTU low NOx gas burner that delivers 75 gallons in the first hour
Tank Guard® provides advanced tank protection that extends the life of your gas water heater
Tall, slim 61.25-in H x 22-in diameter profile enables easier installation in narrow spaces
High-altitude certified from 0 ft to 10,100 ft
Provides peace of mind with a 12-year limited tank and parts guarantee and a 1-year limited labor warranty