| 摘要 |
PURPOSE:To prevent incurring of a heat dissipation loss and to shorten a time in which a bath tube is filled with hot water, by a method wherein the one of the outlet sides of a heat exchanger for feeding hot water is communicated with a hot water feed faucet, the other is communicated to a hot water pouring pipe, in order, through an on-off valve B, a separate tank, and on-off valve A, and the tip of the hot water pouring pipe is communicated to a supply pipe upstream of a line from a circulating pump. CONSTITUTION:When a quantitative amount of hot water is poured in a bath tub, with a hot water plug 3 closed and on-off valves A, B, and C opened, operation is effected, after hot water produced by a heat exchanger 1 for feeding hot water is fed in a separate tank 5 through an on-off valve A4, and a water amount sensor 21, the hot water is fed in an supply pipe up a line from a circulating pump through the on-off valve B by means of a hot water pouring pipe 7, 10 to flow through the circulating pump 10. The one is fed in an outbound pipe 14, the other flows in a switching valve 17 through an on-off valve C15 by means of a bypass pipe 16. By closing the opening part of a switching valve connected to a heat exchanger 13 for bath by pushing up a ball 18, the hot water is fed in an return pipe 12. Namely, the hot water is fed in a bath tub through both the supply pipe 14 and the return pipe 12. This constitution enables pouring of a large amount of hot water reducing incurring of a heat dissipation loss, and enables shortening of a time in which a bath tub is filled with hot water. |
