Stovepipe not sealed completely

Murock12 · Mar 28, 2014

Hi, first post, I recently just bought a new house with a wood stove, however when reviewing it, I noticed a large hole on the back of the stove where the pipe connects to the actual stove, like the previous owner failed to completely seal the stove. I can look directly into the fire without any seal, i have not seen any smoke but Im worried hot ash can filter out of it.Unfortunately, as you see in the pics I started a fire before noticing it, so i will have to wait until the stove cools, I also noticed the screws were out or not screwed in all the way. Again Im new to stoves so I'm not 100% sure if this is even a problem. Thanks

My stove is a Windsor High efficiency model WR270007
I also noticed where the pipe enters the chimney, there seems to be a loud humming sound. haven't heard anything like it before, usually i thought the stoves just make heat contraction sounds, this one does not. thanks again

Matt Murawka

DAKSY · Mar 28, 2014

Looks like the inexpensive snap-together, 26 gauge connector sold at big box stores. It'll work for a while,
but when you replace it go to 22 gauge welded seam & it'll last for many burning seasons.
In the meantime, get some stove gasket & stuff it in the gap. Push it in with a flathead screwdriver.
It'll seal nicely.
Try to seat the screws snugly, there should be three minimum at each interface...
Don't know what to tell you to do about the harmonic. You might try to seal that end with more gasket.

skinanbones · Mar 28, 2014

yup just cheap single wall that someone didn't take the time to make sure it was shaped right before installing it. You can take that pipe off bend that spot out so that it is more round. I'm willing to bet if you take it off you will find that locking tab of the pipe is not snaped together correctly at that point, once that tab is snapped right you should be able to tweak it enough that the gap is only 1/8 inch or so.

smokedragon · Mar 28, 2014

Either do what DAKSY said, or replace the pipe. If you aren't burning full time, I would just tweak the pipe (then seal with gasket if it still isn't a great fit).

The hum means you must have a good draft (it is your draft blowing across the end of the pipe, like blowing across the top of a soda bottle).

I would pull that pipe out of the thimble and measure. That hum may mean that the pipe is too long (sticking out into the chimney instead of being flush with it).

fossil · Mar 28, 2014

So long as the stove is drawing and burning well, gaps in the stovepipe aren't a source of smoke into the living space, as the pressure inside the flue is below that in the room. So room air will be drawn into the flue through those gaps. If they bug you, fill them with furnace cement. The screws are important, they should all be there (3 per joint), and they should be properly and completely installed. Dunno about the humming noise...take a non-flammable something, or put on a welder's glove, and poke around while the thing is making noise to see if you can locate it. Rick

http://www.homedepot.com/p/Rutland-10-3-oz-Furnace-Cement-Black-64C-6/202218155

M1sterM · Mar 28, 2014

Looks like there is a screw hole on the flange on the stove right where that "hole" is. As others said, not a big problem, as air is (should be) sucked in due to draft. But, I would take a very small drill bit, and drill a pilot hole through the stove pipe by drilling through the flange hole, and then use a sheet metal screw to pull the gap closed. As long as you don't overtorque the screw, and strip the pipe, it should pull nearly closed.

Murock12 · Mar 30, 2014

Thanks guys, I took the entire pipe apart and seemed it was properly installed but I still had trouble with the gap, Stove gasket worked well. I think this summer I will install a better pipe. The only thing now I occasionally have really loud pops, or bangs, when stove is really heating. Maybe cause its brand new the metal is getting "familiar" with heat? Thanks again for your help

smokedragon · Mar 30, 2014

Did you ever figure out what was causing the "HUM"?? I assume it is your stove pipe sticking too far through your thimble. Did you check that while you had it apart?

chemical_man · Mar 31, 2014

Looking at the third picture, I was wondering if the stovepipe was perfectly vertical? The gap between the top of the stovepipe and the elbow seam should be the same all around, should it not? I may be thinking that because I have double wall piping...
The gap: did you screw it in? I'm surprised that would not have pulled it in.

I had my stove installed last year, I also have the occasional pop/bang. Hasn't concern me, everything is sealed well.

Murock12 · Apr 1, 2014

smokedragon said:
Did you ever figure out what was causing the "HUM"?? I assume it is your stove pipe sticking too far through your thimble. Did you check that while you had it apart?

i looked at everything, It did look a bit to far in, but not too much. I have listened to the sound more, and its more of a wind blowing sound, so maybe its more of the draft. I did look at installing the screws but, I i wanted to try the gasket first, it fit really well.

Search

Search

Stovepipe not sealed completely

Murock12

New Member

Attachments

DAKSY

Full Time RVer

skinanbones

Feeling the Heat

smokedragon

Minister of Fire

fossil

Accidental Moderator

M1sterM

Member

Murock12

New Member

smokedragon

Minister of Fire

chemical_man

Member

Murock12

New Member

Similar threads