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Should I be concerned with the chimney discouloration?

Started by Ginger Squirrel, October 16, 2024, 05:18:24 PM

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Ginger Squirrel



This is a fairly new install, I used it maybe a dozen or so times. Wood I'm burning is around 5% moisture content so it's dry. It's mostly birch. Threw in some 2x4 and misc construction lumber (non treated) in there a few times too. Normally I'll be burning pine/spruce as that's what we have the most here, with a mix of poplar and birch. What I have here that's seasoned is mostly birch and poplar though.

Should I be worried about how my chimney is already looking or is this normal? 

Ljohnsaw

It looks to be stainless steel. When it gets hot, it does that. No worries.
John Sawicky

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cutterboy

Mine is the same as yours. I don't know why they do that but they all do. And it's always right at the top.

5% moisture content? That is amazing. My firewood is mostly 12-15%
To underestimate old men and old machines is the folly of youth. Frank C.

Ginger Squirrel

Ok that's good to know.  I was just concerned because I see them on other houses and they are not like this, but maybe they never use their wood stove or don't even have it installed anymore. 

And yeah this wood has been sitting indoors for over a year so it's very dry.  Idealy I do want to try to aim for under 10% though, I've been cutting my wood really small to speed up seasoning process until I have a few years worth gathered.

beenthere

I would be suspect of your firewood being 5% MC. How did you determine this? 
   But not really an issue nor that important. The chimney looks normal and indicative of smoke (wood gases) cooling off as they exit the chimney under the cap, swirling around and depositing the black creosote. 
What is important would be any creosote forming just prior to exiting the stack and plugging the top. Close inspection will reveal that issue. 
south central Wisconsin
It may be that my sole purpose in life is simply to serve as a warning to others

Ginger Squirrel

Using a test meter, I split the wood and tested inside to be safe.  The wood has been sitting indoors for a whole year though so that's why it got that low.

Ron Scott

A normal condition where the smoke gases leave the capped end of the pipe. Burning dry wood with the damper open more will keep the chimney cleaner. 

Inspect the chimney annually to see if a cleaning of the stainless pipe is needed.
~Ron

Al_Smith

Dry hard flacky creosote is not a problem,it won't burn .It's the gooey road tar type that causes chimeny fires Generally speaking on a well insulated lining it will only be in the last 6 or so inches where it exits the flue .Mine is a 7 inch welded seam 22 gauge stainless inside the original 9 inch clay liner insulated with fiberglass that will with stand 1400 degrees of heat .It will never get that hot unless I burned old tires or something .Which I'm not going to do ,got plenty of good Ohio hard wood for the heat  .Plus the fact as it stands I'm already done with it this year about the time many people get  started .
   

Al_Smith

To my above post I got that single wall stainless from a builders supply not a so called stove shop .The later makes a big deal out of it and charges three or four times for it .To make it more  interesting that pipe was made in Ohio .Some times you have to think outside of the box . ffcool 

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