A. O. Smith's Signature 100 Series 40-Gallon Tall Low NOx Direct Vent Natural Gas Water Heater is designed to provide efficient and reliable hot water for households with 3 to 4 people when sized appropriately. With an environmentally friendly 38,000 BTU Low NOx gas burner, this natural gas water heater delivers 64 gallons of hot water in the first hour. It has 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 38,000 BTU low NOx burner that delivers 84 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 the system's operational status
Built-in safety system reduces the risk of accidental flammable vapor ignitions
Short 49.75-in H x 22-in diameter design is ideal for condensed spaces like under staircases and closet installations
Direct vent installs through side wall
High-altitude certified from 0 ft to 7,700 ft
Provides peace of mind with a 6-year limited tank and parts guarantee and a 1-year limited labor warranty