| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot-water heating system whose housing has good weight balance and enhanced strength. <P>SOLUTION: The hot-water heating system includes a heat exchanging unit 5 in which a circulation pump 7, a heat exchanger 6, and a heat an auxiliary heater 11 are arranged and connected in reverse U-shape within the housing thereof. The hot-water heating system is characterized in that an expansion tank 13 for absorbing pressure increase inside the hot-water heating circuit is disposed at the substantially center of the housing, and a housing base plate 17, an operating unit mounting plate 16, and an expansion tank fixing bracket 19 are all continuously connected, thus ensuring a configuration to serve as reinforcing members. <P>COPYRIGHT: (C)2012,JPO&INPIT |
