How tall FAU Flue


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Old 08-12-07, 04:58 AM
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How tall FAU Flue

Hi

I have a FAU installed in my 2-story attic. The unit is upright and the length of the exhaust pipe to the roof line is 3 1/2 feet. The leght of the exhast pipe above the tile was 2 feet. Now the roofer has replaced the old externalpiece (2 footer) with just a "T" which is more or less couple of inches above the roof tile. Is this a problem?

Thanks
Neil
 
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Old 08-12-07, 02:24 PM
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Vent pipe

The vent should terminate 2 feet above the roof. Is this some kind of metal liner inside a masonry chimney?
 
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Old 08-13-07, 07:28 AM
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Hi Grady

Thanks for the reply. No this not a liner inside a masonary chimney. It is just metal. As I mentioned in my original post, the roofer placed a "T" just few inches above the roof tile and you mentioned two foot above roof line. Please confirm? also, should it be double lined?

Thanks

Neil
 
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Old 08-13-07, 09:33 AM
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Hi Grady

Thanks for the reply. No this not a liner inside a masonary chimney. It is just metal flue. As I mentioned in my original post, the roofer placed a "T" flashing just few inches above the roof tile and you mentioned the need to be two feet above roof line even though this is just a flue for a gas unit sitting in the attic three feet below the roof. Please confirm?

Thanks

Neil
 
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Old 08-13-07, 06:09 PM
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Chimney

I believe all vents need to be at least two feet above the roof line. Check your local codes & the manufacturer's installation manual for the furnace.
 
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Old 08-13-07, 06:59 PM
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Where is this "T" ?

Are you able to post us a picture of what you got?
 
 

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