| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a storage type water heater for which users feel no strangeness. <P>SOLUTION: A storage type water heater includes a hot water storage tank, a plurality of remaining hot water temperature sensors which detect a temperature of hot water in the hot water storage tank, a remaining hot water amount calculation means which calculates an amount of remaining hot water in the hot water storage tank from a detection value by the remaining hot water temperature sensor, and a remaining hot water amount display means which displays a calculation result of the remaining hot water amount calculation means. The remaining hot water amount calculation means includes a first determination criterion which determines that there is remaining hot water when the detection value of the remaining hot water sensor is higher than a predetermined threshold value and a second determination criterion which determines that there is remaining hot water when the detection value of the remaining hot water sensor is higher than a second threshold value higher than the predetermined threshold value. <P>COPYRIGHT: (C)2013,JPO&INPIT |
