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Old 03-13-2012, 02:12 PM   #1
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Question about moving heating vent pipe


I want to redo our small area for the washer and dryer. It is in a closet type area, off the hallway on the second floor. We have natural gas heat and the vent is running in a small area right behind the wall where the washer is. The heater is located in the garage. It is vented all the way to the roof. I want to move a wall and the closet in the bedroom next to the washer closet to expand the area.

My question is: Can this vent pipe be moved or re-routed? Is there a code on distance away from any combustable materials?

I would like to find out more about this before I start taking down any walls.

Thanks for any help! Randy

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Old 03-13-2012, 04:02 PM   #2
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Question about moving heating vent pipe


Atmospheric/ 80%/ 90%/furnace???
single walled vent/ B Vent or plastic???

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Old 03-15-2012, 02:15 PM   #3
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Question about moving heating vent pipe


I'm not sure what all you are asking, I'm no hvac guy. The unit in the garage has a 4-5 inch pipe, looks like galvanize duct pipe to me. This goes through the ceiling, all the way to the roof. It doesn't look big enough to be insulated, but I may be wrong.
I want to know if I can maybe put a couple of 90 degree elbows in the line, so it will not be in the middle of the new closet for the washer and dryer.

Thanks
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Old 03-15-2012, 02:32 PM   #4
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Question about moving heating vent pipe


If its double walled pipe (called "B" vent) then the clearance is 1 inch to combustable.
Single walled vent pipe is something like 10 inches to cobustables.
You cannot run "B" vent up the outside of a wall unless you enclose it and insulate that chase.
Once to the roof it must be 2 feet above the roof and it must be 10 feet on a level line all around the termination point to any outside wall or the roof itself.
Some places allow a furnace in a garrage but the wall between the garage and house must have a vapor barrier and its questionable that the supply and return duct passes through that wall.
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Old 03-15-2012, 03:24 PM   #5
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Question about moving heating vent pipe


Thanks, REP! I didn''t know what "B" pipe was. Hopefully that's what I'm dealing with. I guess I'll have to open up the wall and see how they have run it. From all the measurements I've taken, there seems to be a 2 ft area where the heat pipe and plumbing is located.
Could I build a chase inside the new closet to close in the ductwork? What about running it along inside the floor joist, if it was insulated?

Thanks!
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