Endless hot water;Electric tankless water heater is 99 percent energy efficient, the power you use goes into the water, not up the chimney;No recovery necessary, never run out of hot water again;Limited warranty: 1 year parts, 5 year leaks;Precise temperature controls, prevent scalding;Finger tip temperature control delivers safe hot water;Microprocessor thermostatic control + / - 1 degree F;Flow device activates heater only on demand (no standby heat loss);No venting or extra piping;Compact design - no need for a bulky tank;Tested by independent laboratory to maintain water purity;