| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water heating device with a cross valve which can reduce an energy loss and be driven by simple control while achieving price-reduction. <P>SOLUTION: A water heating device includes: a hot water reservoir 1; a heating means 2 for heating hot water in the hot water reservoir 1; and a channel switch means 10 for transferring the hot water heated by the heating means 2 to either of an upper part and a lower part of the hot water reservoir 1, wherein the channel switch means 10 comprises a plunger 35 moved by excitation change to a coil 33, and a closure 37 arranged at a tip end of the plunger 35. <P>COPYRIGHT: (C)2013,JPO&INPIT |
