| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water supply system which can reduce a pressure loss in a hot water distribution channel even when hot water in a hot water storage tank runs out and reheating is carried out by a combustion water heater.SOLUTION: When hot water in a hot water storage tank 10 does not run out, a bypass valve 21 is opened, and a mixing ratio changing means 28 performs mixing temperature adjusting control for adjusting a mixing ratio so as to obtain hot water at a set hot water supply temperature. When the hot water in the hot water storage tank 10 runs out, heating temperature adjusting control is performed in which the combustion water heater 3 heats hot water in a hot water discharge pipe 17 so as to obtain the hot water at the set hot water supply temperature. During the heating temperature adjusting control, bypass temperature adjusting control can be executed, in which hot water from a hot water discharge bypass pipe 20 is mixed with hot water in the hot water discharge pipe 17 on a downstream side of the combustion water heater 3 by adjusting an opening of the bypass valve 21, to obtain the hot water at the set hot water supply temperature. |
