Generate efficient and reliable hot water for households with 3 to 4 people, when sized appropriately, with A. O. Smith's Signature 100 Series Tall Ultra Low NOx Atmospheric Vent Natural Gas 40-Gallon Water Heater. With an environmentally friendly 40,000 BTU Ultra Low NOx gas burner, this model delivers 72 gallons of hot water in the first hour. It features an electronic gas valve that provides precise temperature control for optimum hot water delivery without the need for an external power source. For your convenience, the gas valve also includes an LED status indicator for diagnostics reporting and a push button ignition to simplify the startup process. A. O. Smith's 40-gallon natural gas water heater is designed with your safety in mind. With a built-in safety system, this model reduces the risk of accidental flammable vapor ignitions. A factory-installed temperature and pressure relief valve and tamper-proof drain valve also ensures 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 6-year limited warranty to give you additional peace of mind. Call 1-877-GOLowes to get this water heater installed.
Delivers the ideal amount of hot water for households with 3 to 4 people when sized appropriately
Features an environmentally-friendly 40,000 BTU ultra-low NOx burner that delivers 72 gallons in the first hour
Electronic gas valve provides precise temperature control for optimum hot water delivery
Self-diagnostic electronic gas control incorporates an LED status indicator that monitors and reports on system operational status
Built-in safety system reduces the risk of accidental flammable vapor ignitions
Tall, slim 62-in H x 18-in diameter profile enables easier installation in narrow spaces
Tank Guard® provides advanced tank protection that extends the life of your gas water heater
High-altitude certified from 0 ft to 10,100 ft
Provides peace of mind with a 6-year limited tank and parts guarantee and a 1-year limited labor warranty
