Electric water heaters are protected against dry burning, scalding, overheating, physical shields, splashing, leakage, water and electricity separation, magnetic induction, overpressure, water shutdown, backflow, and power outage memory functions. Quick hot water heaters mainly include pre installed dual mode electric water heaters, 3D fast thermoelectric water heaters, and intelligent capacity increasing electric water heaters.

Electric water heater refers to a water heater that uses electricity as its energy source for heating. It is one of the three major water heaters in parallel with gas water heaters and solar water heaters. Electric water heaters can be divided into three types according to their heating power: storage type (also known as volumetric or thermal storage type), immediate heating type, and rapid heating type (also known as semi storage type).