Cleaning chimney... gasket fell out?


New Member
Jun 28, 2020
Hi everyone,

Been lurking these forums for quite some time but this is my first post here. We purchased our Hearthstone Green Mountain 60 wood stove a little over a year ago and just finished up our first winter with it. I recently bought a SootEater to clean out the chimney myself. It seems to have worked very well, but when I finished up and pulled it back out through the front of the stove I found a gasket had gotten wrapped around it. My questions are:
  • What is this gasket/where did it come from?
  • Is it ok to operate the stove without it?



Chimney sweep
Staff member
Jan 14, 2014
central pa
My guess would be bypass gasket but I don't know the stove well enough to be sure. Check the bypass


May 4, 2018
Heart of NC
Interesting. I'd be contacting Hearthstone with that one. When cleaning stove pipe from bottom up with a sooteater, I have to take the top of my Hampton H300 apart. My stove is full of gaskets and I find them with every part removed. I took pictures as I disassembled so I'd know what gasket went where. Sounds you had a gasket misaligned if it came out during cleaning.


Minister of Fire
Jan 13, 2015
Exact reason I don't clean through my bypass equipped stove. Could never figure out how to safely get passed my bypass gasket safely. My option is telescoping connector pipe. Slide it up off the stove and insert sooteater. The area around the bypass needs cleaning each time anyway.


Feeling the Heat
Oct 24, 2017
Ontario, Canada
Yes it looks like the bypass gasket.

I have a Green Mountain stove as well and one day I noticed a section of my bypass gasket hanging down (coming off). I used a bit of gasket cement and haven’t had a problem since. Putting the whole gasket back on would be tricky though—might need to disconnect from the pipe.