To provide a storage water heater having little temperature fluctuation even if there is rapid flow rate change.
The storage water heater includes a hot water storage tank 9, a tapping pipe 12 delivering high temperature water from the hot water storage tank 9, a first water supply pipe 13 supplying water to the hot water storage tank 9, a mixing means 15 for connecting the tapping pipe 12 and a second water supply pipe 14 branched from the first water supply pipe 13 and mixing the water and the hot water, a hot water supply pipe 44 supplying the water and hot water mixed by the mixing means 15 to a hot water supply terminal 11, a flow rate detecting means 17 for detecting a flow rate of hot water flowing through the hot water supply pipe 44, a temperature detecting means 16 for detecting a temperature of the hot water and water mixed in a downstream side of the mixing means 15, and a controller controlling the mixing means 15 on the basis of detected values of the flow rate detecting means 17 and/or the temperature detecting means 16. When the flow rate detecting means 17 is detecting delivery of the hot water and water, if a flow rate difference of a predetermined flow rate or more is detected within a certain period, a mixing ratio of the hot water and water of the mixing means 15 is set at a predetermined mixing ratio.
ISHIHARA HIROSHI
SHIBATA YUJI
KITANISHI HIROSHI
FUJIMOTO TAKANOBU
YANAGISAWA TADASHI
| JP2001324158A | 2001-11-22 | |||
| JPS643436A | 1989-01-09 |
Hiroki Naito
Daisuke Nagano