| 摘要 |
PROBLEM TO BE SOLVED: To resolve a problem that because a book made of ordinary paper of the prior arts is damaged at the time of reading in a bathroom by water drops or moisture, a book strong against moisture, which is constituted of waterproof paper, synthetic resin or the like, has been devised, however, the kind of published books is few and only some limited books can be read in the bathroom. SOLUTION: In a hot-water supplying system equipped with a hot-water supplier 1 and remote controllers 2, 3 arranged respectively in and out of the bathroom, the remote controller 2 for the bathroom is provided with a monitor 24 for displaying display data and the remote controller 3 for a kitchen is equipped with a detachable external memory 33a to transmit the display data, stored in the external memory 33a, to the remote controller 2 for bathroom utilizing a communicating means 5 to display the same in the monitor 24.
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