| 摘要 |
<p>PROBLEM TO BE SOLVED: To alleviate discomfort imparted to a user when increasing the number of operating units of hot water supply devices without involving increase in gas consumption, in a configuration in which a plurality of hot water supply devices are connected in parallel with respect to a common hot water supply passage.SOLUTION: Hot water supply devices 100-1 and 100-2 are connected in parallel with respect to a common hot water supply passage 200. When a hot water supply load increases from a state in which only the hot water supply device 100-1 is supplying hot water, an operation of the hot water supply device 100-2 is started. At the time of the operation start of the newly operated hot water supply device 100-2, a controller 300-2 limits the amount of hot water tapping from the hot water supply device 100-2 corresponding to a period in which a hot water tapping temperature from the hot water supply device 100-2 drops.</p> |
