A. O. Smith's Signature 100 Series 74-gallon water heater is designed to provide efficient and reliable hot water for households with 5 or more people when sized appropriately. With an environmentally friendly 75,100 BTU Low NOx gas burner, this gas water heater delivers 125 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 short water heaters feature a built-in safety system, tamper-proof drain valve and a factory-installed temperature and pressure relief valve. As durable as it is safe, this 74-gallon gas hot water heater features Tank Guard® which is designed to proivde 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 same day.