| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To further accelerate promotion of saving and energy saving by changing a display method when hot water amount remaining in a hot water storing tank becomes less than a certain level, and to notify a user to boil hot water urgently. <P>SOLUTION: In the display device 1, a hot water remaining amount received by a hot water remaining amount receiving means 21 is compared with a reference hot water remaining amount input from a hot water remaining amount reference value inputting means 23 by the user by using a hot water remaining amount comparing means 24. The hot water remaining amount comparing means 24 outputs its result to a display method changing means 25. In the display method changing means 25, if the hot water remaining amount received by the hot water remaining amount receiving means 21 is less than (or equal to or less than) the reference hot water remaining amount input from the hot water remaining amount reference value inputting means 23 as a result of comparing the hot water remaining amount received by the hot water remaining amount receiving means 21 with the reference hot water remaining amount input from the hot water remaining amount reference value inputting means 23 by the user by the hot water remaining amount comparing means 24, the display method of the hot water remaining amount received by the hot water remaining amount receiving means 21 displayed by a hot water remaining amount displaying means 22 is changed. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
