| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved hot water device structure for offering stable-temperature hot water, having high efficiency and longer service life. SOLUTION: A heat exchanger 1 has a first path 11 and a second path 12 connected to each other. A combustor 2 is mounted in the first path 11. A blowing type electric fan 3 having an outlet is connected to the combustor 2 for forcibly feeding air to the combustor 2. A water storage tank 14 is provided around the outside of the heat exchanger 1. When the combustor 2 is ignited, the blowing type electric fan 3 is operated to forcible feed air to the combustor 2 and then combustion gas flows into the first path 11 and flows out of the second path 12. COPYRIGHT: (C)2005,JPO&NCIPI
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