| 摘要 |
PURPOSE: A heating time controlling method using temperature difference is provided to maintain a pleasant room temperature and also to effectively cut off the wasted heat by decreasing excessive change of the room temperature. CONSTITUTION: The method comprises the steps of:calculating(1, 2) temperature difference by comparing the set up temperature with the present temperature; shutting(5) a valve if the set up temperature is lower than the present temperature in the calculated temperature difference(3); calculating(4) the operated time within the standard time according to the temperature difference if the set up temperature is higher than the present temperature; opening(6) the valve repeatedly as much as the calculated time; and shutting the valve(7) during remained time.; Herein, the excessive temperature change is reduced compared to the situation controlling the temperature by relying on only the room temperature.
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