A. O. Smith's Signature 28-Gallon Lowboy 6-Year Limited Warranty Electric Water Heater is designed to provide efficient and reliable hot water for households with 1 to 2 people when sized appropriately. Our unique low profile design with top connect water connections is ideally suited for installations with space constraints. A. O. Smith's 28-gallon model is designed to last. It features dual copper heating elements, a protective anode rod and a ceramic fused tank shield designed to reduce corrosion and provide ultimate tank protection. It also features a self-cleaning dip tube designed to reduce sediment build-up and extend the overall life of the water heater. This added protection comes with a 6-year limited warranty to give you additional peace of mind. Want to save money on your energy bills? This model operates at a 0.89 Uniform Energy Factor (UEF) which can reduce your energy consumption compared to less efficient models. Not sure if this is the right water heater for you? Use our product selector tool to see if this model is the right fit for your hot water needs.