| 摘要 |
PURPOSE:To feed a constant amount of tea at all times without decreasing an amount of hot water fed from a hot water feed valve even when a water level in a tank is lowered, in a water boiling device used for a tea feeder for feeding tea. CONSTITUTION:When a tea switch 30 is turned ON, a hot water feed control means 31 opens a hot water feed valve 18 for a specified time. When a time between a time at which a heater 16 is turned OFF by a second temperature deciding means 28 and a time at when the heater 16 is turned ON by a first temperature deciding means 27 is shorter than a given time, the ON time of the hot water feed valve 18 is corrected and increased by a hot water feed time correcting control means 32. A water boiling device comprises the hot water feed control means and the hot water feed time correcting control means. |
