| 摘要 |
PROBLEM TO BE SOLVED: To set a flow ratio of the warm water flowing in heat radiating branch flow passages 30 and 40 at a predetermined value even if flow passage resistance is different between each of the heat radiating branch flow passages 30 and 40, in a warm water piping structure formed into a closed loop from a warm water outlet 17 of a water heater main body 1 to a warm water inlet 18 of the water heater 1 through a parallel circuit formed by connecting a plurality of heat radiating branch flow passages 30 and 40, which are provided with heat radiators 3 and 4, in parallel with each other. SOLUTION: A flow passage branch part in an upstream end of the heat radiating branch flow passage or a flow passage junction part in a downstream end of the heat radiating branch flow passage is provided with correcting means 51 and 52 for correcting a ratio of flow passage resistance of each of the heat radiating branch flow passages. COPYRIGHT: (C)2005,JPO&NCIPI
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