WATER HEATER WITH REHEATING FUNCTION

PROBLEM TO BE SOLVED: To provide a maintenance free water heater with a reheating function capable of keeping a reheating pipe, an inside of a heat exchanger, etc., clean by simple operation. SOLUTION: The water heater comprises a hot water supply line 26 for a bathtub which supplies hot water in a hot water storage tank 10 to the bathtub 15, a bathtub hot water supply flow rate adjusting means 44 for starting/stopping supply of hot water to the bathtub 15, a minute bubble generating device 31 provided for the hot water supply line 26 for the bathtub for generating minute bubbles in hot water flowing in the hot water supply line 26 for the bathtub, a control part 45 for controlling operations of the bathtub hot water supply flow rate adjusting means 44 and the minute bubble generating device 31, and a remote controller 46 equipped with an operation means 461 by which a user instructs the operation of the bathtub hot water supply flow rate adjusting means 44 to the control part 45. When the operation means 461 is operated by the user, the minute bubble generating device 31 is operated after operating the bathtub hot water supply flow rate adjusting means 44. COPYRIGHT: (C)2010,JPO&INPIT