Electric heating rod of water heater

The utility model relates to an electric heating rod of a water heater. The electric heating rod includes a heating rod, a temperature measuring pipe and a magnesium rod. The heating rod, the temperature measuring pipe and the magnesium rod are mounted on an assembling flange used for assembling the electric heating rod and a cylinder body of the water heater. The heating rod includes a copper pipe, an insulation filler and an electric heating wire. The electric heating rod is characterized in that the outer side of the copper pipe is provided with fins spaced at a distance of 10 mm. According to the utility model, by arranging the fins on the copper pipe of the heating rod, heat transfer effect of the heating rod is enhanced and the service lifetime and heating efficiency of the water heater is guaranteed by using the magnetism rod.