| 摘要 |
<p>PURPOSE:To provide a storage type liquid heater capable of constantly supplying a necessary heating liquid and of miniaturizing a tank by providing a control means having operating means for placing the heater in an operational state even outside a predetermined operational time zone. CONSTITUTION:The temperature of hot water and the operational time zone of the heater 2 are set by a setting part 6, and hot water is produced everyday in the operational time zone of the heater. In a case where a large amount of hot water is required urgently, the heater 2 is placed in the operational condition by manipulating operating means 9. Accordingly, the operations based on the relationship between the detection output of a sensor 4 and the set temperature are carried out and hot water is again produced. By providing operating means capable of easily meeting such a need to use midnight power when the predetermined operational time zone of the heater 2 is set at midnight, and to use normal power for the operational of the heater 2 outside the midnight power time zone, it is possible to constantly supply a constantly required heating liquid and to miniaturize a tank.</p> |
