| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water heater that prevents heat recovery operation while a bathtub has no or less hot water. <P>SOLUTION: The water heater includes: a hot water storage tank 1; the bathtub 3; a heat exchanger 4 for providing heat exchange between water in the hot water storage tank 1 and water in the bathtub 3; a heat recovery operation controller 21 for controlling the heat recovery operation in which the heat exchanger 4 is used to recover heat from the water in the bathtub 3 to the water in the hot water storage tank 1; and a bathtub hot-water amount detector 27 for detecting a hot water amount in the bathtub. The heat recovery operation controller 21 determines execution of the heat recovery operation on the basis of a result detected by the bathtub hot-water amount detector 27. <P>COPYRIGHT: (C)2013,JPO&INPIT |
