| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric water heater improved in heating response and temperature control performance, and also enhanced in thermal conductivity. SOLUTION: The electric water heater comprises a heater unit 30 formed by printing on the lower surface of the bottom 23 of a container 20 for storing hot water. The bottom 23 is provided with a recessed portion 26 at a position for dividing the heater unit 30 into central and peripheral portions to improve the heater unit in heating response and temperature control and at the same time reduce the thermal capacity thereof, so that it is possible to obtain a water heater excellent in thermal conduction and stable in performance without problems also from a view of manufacturing. |
