Lowe's offers a variety of hot water heaters that are energy-efficient, however, the efficiency rating varies based on the model. The most energy-efficient hot water heaters sold by Lowe's display an emblem bearing the Energy Star logo.
Although efficiency varies, Lowe's hot water heaters have a label that lists their energy consumption and estimates the yearly cost that the average household can expect to pay in energy bills with that appliance. Energy Star-certified hot water heaters offer the lowest rate of energy consumption per gallon of water heated. This can add up to a significant savings on yearly household utility bills, according to the U.S. Department of Energy.