Water heating device
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United States of America Patent
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Sep 13, 2022
Grant Date -
Oct 21, 2021
app pub date -
Aug 22, 2019
filing date -
Sep 26, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A water heating device includes: a heat exchanger having a case to which heating air is supplied, and heat transfer pipes accommodated inside the case; and a straightening vane arranged on the downstream side in a heating air flow direction of the heat transfer pipes, and having a plurality of vent holes. The heat transfer pipe includes a plurality of pipe body portions that extend along a direction intersecting the heating air flow direction and approach the straightening vane. The plurality of vent holes are arranged so as to overlap the plurality of pipe body portions in the heating air flow direction.
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