| 摘要 |
<p>PURPOSE:To provide an electrical hot water heater in which either a boiling-up amount of that day or a hot water boiling-up temperature is set in response to an actual amount of hot water used everyday of a specified past period of time and further a boiling-up amount/temperature of that day capable of being adapted to a difference of used hot water amount between that of weekdays and specified days such as holidays, for example, can be set. CONSTITUTION:This kind of hot water storing electric hot water heater is provided with a timer calendar 2 for use setting a mid-night power starting time 23:00 and weekdays of every day and each of memories A/B 3/4 of a specified day/non-specified day, for example, and at the same time at the specified day, an amount of use of hot water of the past weekday is used to set that amount through a control calculation part 1 of a micro-computer.</p> |
