| 摘要 |
PURPOSE:To obtain the electrical bath boiler which is efficient and having a high degree of safety by a method wherein a heating means is wound around a pipe having its both ends connected to a bathtub so that cooled hot water in the bathtub is heated to an elevated temperature. CONSTITUTION:The heating means 6 is wound around the pipe 1 having its both ends connected to the bathtub 4. The heating means 6 is a so called induction heating means formed of a bobbin 7 made of an electrical insulating material and enclosing a heating pipe section IC, a heating coil 8 wound around the bobbin and connected to a high frequency oscillator and a plurality of magnetic path forming members 9 consisting of a ferromagnetic substance such as ferrite having a high rate of resistance and arranged on the bobbin 7 near the outer periphery of the coil 8. Consequently, it is made possible to avoid troubles in heating the cooled hot water in the bathtub to an elevated temperature, to save labor and time and to overcome inconvenience and the efficient and safety electrical bath boiler can be obtained. |
