Furnace having water vapor-condensing secondary heat exchanger
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United States of America Patent
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-
Oct 23, 1984
Grant Date -
N/A
app pub date -
Jan 5, 1984
filing date -
Jan 5, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A compact secondary heat exchanger, installed above the preliminary heat exchanger in a down draft-type gas burning furnace, so greatly reduces combustion gas temperature as to recover a portion of the latent heat in the water vapor created by burning the hydrocarbon gas.
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