Apparatus and method for heating an air stream flowing through a conduit
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United States of America Patent
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-
Mar 11, 1986
Grant Date -
N/A
app pub date -
Dec 3, 1984
filing date -
Dec 3, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method are provided for heating an air stream flowing through a conduit which minimizes the introduction of noxious burner exhaust emissions into the air stream. The apparatus utilizes a refractory radiant-type burner disposed within the air stream which includes means for supplying a combustible fuel to the burner and means for igniting the combustible fuel within the burner. The apparatus also includes means for removing the hot products of combustion from the burner and venting these products to the outside atmosphere until the temperature of the burner reaches steady state operating conditions. When steady state operating conditions are reached, a damper means on the burner opens and directs the products of combustion into the air stream to heat the air stream. When the burner is turned off, the damper means closes and directs the products of combustion to the outside atmosphere.
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