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Old 08-26-2008, 10:05 PM   #1
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Best way to run PVC from forced air furnace


Hi all - 2nd post. Replacing Nat Gas forced air furnace. Old one vented through 5 in round galvanaved to chiminey (hole to chiminey in base ment). New one vents via PVC. Need input on running PVC:

1 - How do I make sure I buy the right PVC ?
2 - Can I / should I run it back up the Chiminey ?
3 - If not run back up the Chiminey - is there any thing I need to make sure I do when running PCV? - does the pipe out side need to be a certian hight or do I need to avoid making a bunch of 90 degree turns or anything else I need to worry about ?

Thanks

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Old 08-26-2008, 10:14 PM   #2
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Best way to run PVC from forced air furnace


Typical schedule 40 (drain pipe) PVC is the norm.

Personally, I'd avoid the chimney. The easiest installation is typically horizontal out the side of the house at the rim joist.

All the rest of your questions must be answered by reading the installation manual that came with your furnace. Each and every furnace is different, and venting isn't a standardized practice. You can download it in most cases from the manufacturer's website if you don't have it. Adhere to the size of pipe, length of run, number of elbows, and termination dimensions that they give...All are very important to good performance and safety.

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Old 08-27-2008, 06:33 AM   #3
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Best way to run PVC from forced air furnace


I looked on-line for an installation manual for this furnace (Armstrong EG6H80DC14 - Ultra 90 III) but no can find. Any ideas ?
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Old 08-27-2008, 08:54 AM   #4
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Best way to run PVC from forced air furnace


Here is a set of furnace instructions I found. The general information is there.

http://www.transtaracsupply.com/pdf/...stallation.pdf

I used a concentric vent on my furnace.

http://www.alpinehomeair.com/viewcat...categoryID/346
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Old 08-27-2008, 10:32 AM   #5
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Best way to run PVC from forced air furnace


Quote:
Originally Posted by sperry View Post
I looked on-line for an installation manual for this furnace (Armstrong EG6H80DC14 - Ultra 90 III) but no can find. Any ideas ?
Did you try the manufacturer's website? They normally have them in PDF format.
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