Patent ID: 8798774
Filing Date: 2014-08-05
Classification: F24D,F24H

Abstract:
1. A hot water supply system setting one of a plurality of water heaters to master, setting another to slave and cooperatively operating a hot water supply operation, comprising: an identification number assigning unit which individually assigns an identification number specifying order of priority, to each of the water heaters; wherein each of the water heaters comprises a control unit, a transmitter configured to transmit prescribed response data to another water heater at a timing according to its own identification number and different from a timing of the other water heater in a prescribed master and slave setting time period, and a receiver configured to receive the response data from the other water heater, the control unit comprises a determination element to determine whether the receiver receives the response data from the other water heater assigned with an identification number having a priority higher than an own identification number in the master and slave setting time period; and a setting element configured to set the water heater itself to slave if a determination by the determination element is positive and to set the water heater itself to master if a determination by the determination element is negative.