Good things do come in small packages. EcoSmart ECO MINI 4 delivers hot water right where you need it, from your garage or outdoor kitchen to your recreational vehicle, this little problem-solver brings the warmth wherever you go. Save water by eliminating the wait for hot water to reach the faucet. Simply tap into the water line and install the heater directly at the sink. No need for costly recirculating lines and pumps. When you want to eliminate the wait for hot water but need more volume, install the heater in-line with a larger hot water source, such as a tankless heater or a storage tank heater. Lightweight and compact, this unit plugs into a standard 120 V outlet.