| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water heater suppressing excessive use of hot water, when hot water supplied from the water heater is mixed with water supplied from a water inlet pipe through a mixing tap and is delivered. <P>SOLUTION: The water heater includes: a target hot water delivery level setting means 33 for setting a target flow rate and target temperature of hot water delivered through the mixing tap 27; a mixing-tap-hot-water delivery flow rate calculating means 35 for calculating a mixing-tap-hot-water delivery flow rate Wk which is a hot water delivery flow rate through the mixing tap 27, based on the temperature Tc of water supplied through the water inlet pipe 7, the temperature Th of hot water detected by a hot water delivery temperature sensor 23, a flow rate Ws of hot water detected by a flow rate sensor 18 and the target temperature Tset; and a hot water use state informing means 32 comparing the mixing tap hot water delivery flow rate Wk with the target flow rate and informing the use state of hot water through display of economic lamps provided in a bathroom remote controller 50 and a kitchen remote controller 70. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
