| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water storage tank which enables improvement of pressure resistance and minimizes heat radiation with a compact structure.SOLUTION: Partition plates 36 for inhibiting expansion of a flat casing 26 are provided in the flat casing 26 forming a hot water storage tank 10. Each partition plate 36 is fixed to a pair of hot water storage tank inner wall surfaces disposed at both sides in a thickness direction. Hole parts 38 are formed in each partition plate 36 so that a surface area becomes large from a center to the outer side in the thickness direction.SELECTED DRAWING: Figure 3 |
