| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water storage tank unit comprising a hot water storage tank capable of changing a hot water storage amount as desired without changing the number of control means with a simple structure. <P>SOLUTION: This hot water storage tank unit X1 comprises the hot water storage tank 11 capable of changing its hot water storage region of the storable water, and constituted by stacking tanks 11A, 11B, 11C in the height direction, closing portions 18R-H1, 18L-H1 fitted to inner diameter portions at a tank 11B side of connection pipes 11R-1, 11L-1, closing portions 18R-H2, 18L-H2 fitted to inner diameter portions at a tank 11C side of connection pipes 11R-2, 11L-2, an expansible pipe 18 for taking out the water from an upper layer portion of the changed storage region, and a motor 15 for pulling the expansion pipe. <P>COPYRIGHT: (C)2008,JPO&INPIT |
