Stiebel Eltron electric tankless water heaters are designed for instantaneously heating water on demand and delivering an unlimited supply of hot water in commercial & industrial facilities. These units are hydraulically controlled for quiet operation and feature a flow switch mechanism for controlling the heating element, preventing dry fire or premature failure of the system. Some models have an advanced microprocessor control mechanism for continuously monitoring information from the flow sensor by compensating the fluctuations in the incoming water & flow rate and maintaining a constant water temperature output for maximum protection against scalding. Choose from a wide range of single- / multi-point-of-use tankless electric heaters, available in wire sizes ranging from 6 to 12 AWG on Raptor Supplies.