code requirement for gas heating vent through the attic

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#1

Originally Posted By: gbiasiny
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My understanding is that a gas fired forced air heating unit, enclosed in a hall closet, that is vented through the attic, has to be fire stopped at the attic floor. Also a return air vent has too be installed from the attic to the enclosed space of the heating unit. This appears to be a contradiction of mechanical requirements. Comments welcomed icon_confused.gif

#2

Originally Posted By: cbottger
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I don’t know about Ga. but in my area a one layer sheet rock ceiling does not constitute a fire stop.


If the vent that you are calling a return air vent terminates within the closet; there are suppose to be two vents one high and one low and they are use to provide combustion air for the burner from the attic and are a requirement unless the furnace is grandfathered in.

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