| 摘要 |
PROBLEM TO BE SOLVED: To provide a water heater that prevents setting of a water level correction value inappropriate for a target hot water filling water level.SOLUTION: Water level change detection means 47 detects change of a water level of hot water within a bathtub 2 caused by a factor other than an automatic hot water filling operation. Water level correction value updating means updates a water level correction value so as to reduce a water level difference between a detection water level obtained by a water level sensor when target hot water filling amount of hot water is supplied to the bathtub 2 through the automatic hot water filling operation and a target hot water filling water level, and does not update the water level correction value on the basis of the water level difference through automatic hot water filling operation this time when change of the water level of the hot water within the bathtub 2 caused by a factor other than the automatic hot water filling operation is detected by the water level change detection means 47 while the automatic hot water filling operation is being executed.SELECTED DRAWING: Figure 1 |
