| 摘要 |
Method for shifting the switching-in point of heating power in a water heater 10, characterised in that, during a period known as "off-peak hours" the heating power is switched in by means of a temperature detector 21 or by means of a timer 22 depending on the thermal state of the water heater. This invention also relates to a device for the implementation of this method. This invention is principally used in hot-water supply systems for domestic use. <IMAGE>
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