| 摘要 |
PURPOSE:To provide a hot-water supply apparatus which, when a draft is sent in post-purge in a bathwater-heating body of small combustion capacity, enables freeing the hot-water supply body of unnecessary noise of a blower. CONSTITUTION:The subject relates to a two-body two-circuit type hot-water supply apparatus which is equipped with a hot-water supply body 10 having a burner 11 and a blower 12 and with a bathwater-heating body 20 having a burner 21 and a blower 22 and which has a common exhaust passageway 60 and, when combustion is produced in one body whereas there is no combustion in the other body, is designed to keep the blower operating in a manner similar to a case where the apparatus itself is operating a combustion. The apparatus is equipped with a controller 70 by which, when a draft is sent in post-purge after the combustion operation of the bathwater heating body 20 which is of small combustion capacity, the post-purge is carried out at a smaller number of revolutions than the essential post-purge of the apparatus itself in the hot-water supply body 10 having a larger combustion capacity and for a reduced period of time applicable to the post-purge in the bathwater-heating body 20. |
