Blocking Wood stove flue (smoke vent) when not in use.

[Joseph Acquisto]

Got a functioning wood stove for several seasons now. Added a fresh air inlet last year, which proved problematic after I added an outside venting range hood. That is, at times, I can get a "whiff" of stink from the stove when cold and not in use. Depends on weather, I guess.

So, I added a "blast door" (from a dust collection system) in the 4 inch fresh air duct, thinking that would take care of it. Well, sort of. Now, it appears that even with that solidly shut and the "air throttle" for the stove as closed as it will go, I still get some air "down the flue". Or at least I think that's the problem.

Question: What can I use to block the stove pipe (6 inch double wall) when not in use, that will be, relatively easy to clean?

 

[Del_]

Got a functioning wood stove for several seasons now. Added a fresh air inlet last year, which proved problematic after I added an outside venting range hood. That is, at times, I can get a "whiff" of stink from the stove when cold and not in use. Depends on weather, I guess.

So, I added a "blast door" (from a dust collection system) in the 4 inch fresh air duct, thinking that would take care of it. Well, sort of. Now, it appears that even with that solidly shut and the "air throttle" for the stove as closed as it will go, I still get some air "down the flue". Or at least I think that's the problem.

Question: What can I use to block the stove pipe (6 inch double wall) when not in use, that will be, relatively easy to clean?

Would balled up newspaper work?

 

[TNTreeHugger]

Got a functioning wood stove for several seasons now. Added a fresh air inlet last year, which proved problematic after I added an outside venting range hood. That is, at times, I can get a "whiff" of stink from the stove when cold and not in use. Depends on weather, I guess.

So, I added a "blast door" (from a dust collection system) in the 4 inch fresh air duct, thinking that would take care of it. Well, sort of. Now, it appears that even with that solidly shut and the "air throttle" for the stove as closed as it will go, I still get some air "down the flue". Or at least I think that's the problem.

Question: What can I use to block the stove pipe (6 inch double wall) when not in use, that will be, relatively easy to clean?

Pictures?

 

[Joseph Acquisto]

Would balled up newspaper work?

I dunno, Would you be willing to hold it in there to test it?

 

[Joseph Acquisto]

Pictures?

Of? It's 6 inch black stove pipe.

 

[gggGary]

If you are blowing air out of a hole in your house the replacement air has to come from SOMEWHERE.
Most houses are loose enough that's it not an issue. bath vents, loose door, window seals etc usually do the makeup air job.
Extremely tight houses can backdraft unused gas appliance flues.
But if you have a super sealed place then a fresh air intake will deal with the problem. Without pics it's hard to spit ball but a side pipe from your current fresh air intake that goes up 4 or 5 feet then is open to the house would do it. A vertical pipe inside the house will act as a heat trap, cold air does not like to come in and go UP a warm pipe. But strong wind can force air either in or out against a thermal trap.

 

[ElevatorGuy]

I bought a small roll of insulation from the local hardware store for less than 10 bucks. I rolled it up tight and put it in the flue pipe of the open fireplace we haven’t used since installing the freestanding wood stove on the other side of the house. While I don’t ever plan to use that fireplace again, if you go that route remember to remove it before you use the stove.

 

[Yarz]

I saw them install something like THIS on a "This Old House" video.
I've never used them, and I don't know if they make one to fit your pipe or not, but it may be a start for searching:

 

[Del_]

I bought a small roll of insulation from the local hardware store for less than 10 bucks. I rolled it up tight and put it in the flue pipe of the open fireplace we haven’t used since installing the freestanding wood stove on the other side of the house. While I don’t ever plan to use that fireplace again, if you go that route remember to remove it before you use the stove.

I've done that before but I put loose fiberglass in a contractor's heavy duty garbage and stuff it until a tight fit.

With the opening of the bag being at the bottom it can be stuffed in place then tie wrapped.