Patent ID: 7043149

Claim:
An electric water heater comprising a main body provided with a water-heating container, a water storage container for storing liquid to be supplied to said water-heating container, a heating device for heating the liquid in said water-heating container, a hot water discharge passage for discharging the liquid in said water-heating container, a hot water discharge section provided in said hot water discharge passage, a supply passage for supplying the liquid of said water storage container to said water-heating container, and a water conveyance device provided in said supply passage, wherein a delivery port provided on said water storage container and a water supply port provided on said main body which serve as a connection section for disconnecting or connecting said supply passage, are provided in the middle of said supply passage, said water storage container is made possible to attach to and detach from said main body by the disconnection or connection at said connection section, and said water supply port is provided below the upper end of said water-heating container so that when the liquid in said water storage tank which is lifted and poured above said delivery port becomes an overflow state at said water supply port, the liquid returns downward to said water storage tank.