To provide a hot water storage type hot water supply system that has a simple structure and effectively reuses a heating value which reheating return hot water has to save energy.
The hot water storage type hot water supply system includes: an upper return channel (reheating upper return pipe 307b) for returning the reheating return hot water, which returns from a reheating heat exchanger 5 to a hot water storage tank 1, to an upper part of the hot water storage tank 1; a lower return channel (reheating lower return pipe 307c) for returning the reheating return water to a lower part of the hot water storage tank 1; and a reheating return water control means for determining which of the upper return channel and the lower return channel is used in a preferential manner when returning the reheating return hot water to the hot water storage tank 1, on the basis of at least one of a predetermined parameter showing a system state and a condition set by a user.
TOYOSHIMA MASAKI
UNEZAKI FUMITAKE
HIRAOKA SO
SUGIKI TOSHINORI
| JP2007271163A | 2007-10-18 |
Hideki Takahashi
Yasuo Koizumi