EcoSmart ECO 8 is an 8-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications. It can provide between 0.8 and 1.9 gallons-per-minute depending on the inlet water temperature. To select the best solution for your hot water needs, please refer to the sizing guide. With EcoSmart you will be happier knowing the warm water you expect is available endlessly, consistently, and on-demand, allowing you to reduce your water and energy waste. Now that feels warm all over! EcoSmart – Sharing the Warmth.