| 摘要 |
PURPOSE:To prevent inflow of hot-water from a bathtub into a bath boiler, eliminate heat dissipating loss from the bath boiler, prevent temperature decrease of hot-water during using the bathtub and facilitate follow-on heating by a method wherein the notched opening of a cover is arranged so as to rub the slat of a rotating piece. CONSTITUTION:When hot-water is poured into the bathtub 4 by the hot-water supplier 1 through a hot-water supplying cock 2, a knob 16 is turned until the pin 15 thereof is abutted against a stopper 17 so that the notched opening of the cover 11 rubs the slat 13 of the rotating piece 12 to prevent inflow of water into the bathtub 4 through a suction connecting pipe 5, the bath boiler 3 and a push-out connecting pipe 6, and eliminate the heat dissipating loss from the bath boiler 3 to prevent the reduction of hot-water temperature during using the bathtub 4 while the water in the bathtub flows into the bath boiler 3 by opening a watehe elastic section 11 to the side of the blow-off port 3 while the tip ends of the first and second legs 12, 13 are provided with engaging parts 14, 15 respectively. Respective engaging partning of the cover 11 and the foloow-on heating may be effected by the bath boiler 3 through the operation of a water level switch when the follow-on heating is necessary. |
