Flue sensor for gas fired appliance
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United States of America Patent
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Mar 8, 2011
Grant Date -
Sep 6, 2007
app pub date -
Feb 10, 2006
filing date -
Feb 10, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
, may be located above the appliance near the appliance exhaust outlet. The sensor may be located near or under a draft hood located near the exhaust outlet. The sensor remains relatively cool by draft air moving from outside the draft hood and into a chimney, the draft being hastened by the heated, rising chimney gases. A sensor bracket may be attached to the appliance and the sensor to appropriately position the sensor under the draft hood. Alternatively, the sensor may be located on a tube that continually samples combustion exhaust. The tube may be located outside of the draft hood perimeter to maintain a low sensor temperature, while multiple tube coils around the exhaust outlet may be used to further cool the sampled gas.
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