| 摘要 |
<p>PURPOSE:To reduce the capacity of power receiving equipment and to make a daytime power supply which is suitable for the condition of use of hot water and which is more effective by a method wherein a power supply time for a daytime power heater is set so that a supply of electricity in a time zone in which the amount of electricity being used reaches its peak is prevented. CONSTITUTION:A midnight power heater 4 is connected to a power source through a thermostat 6 as a midnight power temperature adjusting means and a power supply time limiting time switch 8 and midnight power heaters 5 and 5' are connected to another power source through thermostats 7 and 7' as daytime power temperature adjusting means and a time switch 9 as a daytime power supply time limiting means. Accordingly, by setting the daytime power time switch 9 at a time outside the time zone (for example, the midnight power supply time zone, and 1,600-1,800) in which the amount of electricity being used reaches its peak is possible to prevent the amount of electricity used from becoming maximum and the additional provision of any power receiving equipment can be dispensed with. Further, there will be no possibility that the daytime power heaters 5 and 5' are left unoperated or operated so that the daytime power is hardly used carelessly.</p> |
