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Old 11-19-2008, 01:32 PM   #1
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Removing Gas Fireplace - Please Help


Hi all,
I have removed a really ugly gas fireplace and now I have a large hole in my wall through the brick, framing, and drywall, which is slightly larger than the 7" duct being used.

I have put the vent back on the outside along with capping the piping inside, securely fastening it all in with supports, and used expanding foam around the piping to eliminate the gaps…however now I have empty HVAC piping coming 3/4 through my wall. I am going to put standard wall insulation between the piping and the vapour, and drywall…but this can't be efficient, especially since we have cold winters and hot summers.

Any suggestions on how to properly do this without brickwork? Should I fill the piping with expanding foam as well?

Any help would be appreciated.



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Old 11-19-2008, 05:54 PM   #2
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Removing Gas Fireplace - Please Help


not totally sure if i understand what your asking but if your saying youve got a piece of abandoned gaspipe if its threaded pipe unscrew it back to the point you want. if theres a gas shutoff you can go all the way back to that point put a small replacement piece of pipe (nipple) and a cap back in the gascock

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Old 11-20-2008, 08:08 AM   #3
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Removing Gas Fireplace - Please Help


Sorry, I wasn't clear. As this is the HVAC forum I eliminated all of the information not related to what I was asking about the HVAC specifically the vent through the wall. I have dealt with the gas and electricity. There is no worries there.
What I was asking about was regarding the direct vent coming out the back of the gas fireplace. It goes through the wall and outside. I removed the fireplace, and the vent remained. I want to properly cap that vent and patch my interior wall so it looks like there never was a fireplace in the room. I wanted to do this, all the while maintain as much R-value (insulation, etc) on this wall as possible.
It doesn't matter anymore because it is all done. I capped the fireplace vent piping (which went to the outside) and filled it with expanding foam, surrounded it with expanding foam then used standard insulation in the wall, replaced the vapour barrier and then drywalled over the area.
Thanks anyway.
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