Patent ID: 7039305

Claim:
A heat conductive tubular electric heater comprising: a heater body; a water storage tank installed within the heat body for storing water; a water inlet tube assembled to the water storage tank for supplying water; a heat conductive tube installed within a water outlet tube; the heat conductive tube having multi-folds in the water storage tank; an electric tube installed within the heat conductive tube so as to form a water path between an periphery of the electric tube and an interior of the heat conductive tube; one end of the heat conductive tube being connected to the water outlet tube; and a water drain tube having an water outlet opening for releasing water into an interior of the water storage tank so as to leave from the water conductive tube; a water outlet tube connected to a predetermined position of the water storage tank so that water can output from the water outlet tube, wherein the heat conductive tube is formed with a plurality of positioning elements at a lower side of the water storage tank for positioning the heat conductive tube, a plurality of connecting elements at a lower side of the water storage tank for connecting different parts of the water conductive tube, and a plurality of retaining plates for retaining the water positioning elements, wherein a water pump, a first tube and a second tube are installed within the water storage tank; the one end of the first tube 91 is connected to the bottom of the water storage tank, and the other end thereof is connected to the water pump; one end of the second tube is connected to water inlet tube, and the other end is connected to the water pump.