Two 90's in Stove Pipe

[MacinJosh]

I searched through old threads but couldn't really find anything. I'm trying to determine if I can place my stove in the corner but it would require the use of two 90's in the stove pipe to reach the existing flue. Has anyone had success using two 90's in the stove pipe? I'd have about 16-20 feet of flue/chimney above the ceiling support box so wouldn't think drafting would be an issue. But I realize sweeping would be a pain.

Thoughts anyone? Can it be done?

 

[bholler]

I searched through old threads but couldn't really find anything. I'm trying to determine if I can place my stove in the corner but it would require the use of two 90's in the stove pipe to reach the existing flue. Has anyone had success using two 90's in the stove pipe? I'd have about 16-20 feet of flue/chimney above the ceiling support box so wouldn't think drafting would be an issue. But I realize sweeping would be a pain.

Thoughts anyone? Can it be done?

Yes it can be done. No you don't want to do it

 

[MacinJosh]

Yes it can be done. No you don't want to do it

LOL! Well I guess that answers that!

 

[SteveKG]

If you can use 45s instead, should work out ok. I have two stoves with a couple of 45s each and they do great.

 

[webby3650]

It especially shouldn’t be done with a BK, even the 2 45’s should be avoided if possible. Definitely not a deal killer though.

 

[MacinJosh]

Sounds like the risks/cons outweigh the reward of having the stove in the corner. I'll just place the stove directly under the flue for a straight shot. I want the stove to operate at peak performance and you guys are telling me that's definitely with a straight shot. Thanks for all the help.

 

[Ludlow]

I dont get why you need two 90's? You can offset using two 45's and an angled run. Pics or a sketch?
Naturally you can make it as long in the run as needed to accomplish your desires.

 

[MacinJosh]

I dont get why you need two 90's? You can offset using two 45's and an angled run. Pics or a sketch?
Naturally you can make it as long in the run as needed to accomplish your desires.

View attachment 243669

I’m limited by the height between the top of the stove and the soffit. Here is a photo. I’ll try to edit it to show what I mean. Sorry for the crude sketch but I think you get the idea. The stove has to move closer to the sliding door and can’t tuck back into the corner.

 

[Ludlow]

I dont see an existing flue?

 

[MacinJosh]

I dont see an existing flue?

I drew it in. It's hidden right above the HVAC duct (which is getting extended out soon to gain access to the flue......which is why the soffit needs to remain).

 

[Ludlow]

You need to tear the duct out of the way. Cant go around that with elbows. Not what I expected at all. Plus I dont think you would have near enough clearance from the wall to begin with. That looks like an abandoned b-vent anyway.

 

[MacinJosh]

You need to tear the duct out of the way. Cant go around that with elbows. Not what I expected at all. Plus I dont think you would have near enough clearance from the wall to begin with. That looks like an abandoned b-vent anyway.

Like I said, the duct is getting moved. Imagine it's no longer in the way. It's getting moved out towards the middle of the room. There's enough clearance there but the stove pipe needs to be double-wall. It's a flue.....the chimney is still on the roof but in bad shape. The home had an old Buck stove that was used for almost 40 years. Previous owner tore it out, capped off the flue, and put duct up underneath it.

 

[webby3650]

If I remember correct, you have a chase coming out of the roof that houses the existing pipe?

 

[Ludlow]

From the pic it looks like it is smack against wood. Verify adequate clearances before attempting to put back into service and if it is indeed class A.

 

[bholler]

From the pic it looks like it is smack against wood. Verify adequate clearances before attempting to put back into service and if it is indeed class A.

He is having a new chimney installed

 

[Ludlow]

He is having a new chimney installed

Must have been mentioned in another thread. In this one he said existing flue. I dont always catch every thread.

 

[MacinJosh]

If I remember correct, you have a chase coming out of the roof that houses the existing pipe?

Correct.

 

[MacinJosh]

From the pic it looks like it is smack against wood. Verify adequate clearances before attempting to put back into service and if it is indeed class A.

Nah, it’s not smack against the wood. And that metal flue looks like it’s almost a foot in diameter or maybe more. New 8” flue should fit in there fine I’d think. All that existing flue and chimney is getting torn out. That’s factored into the labor quote in my other estimate thread.

Can’t show you a photo from below because duct is in the way.

 

[MacinJosh]

Better view to show why I’m trying to get the stove away from the door and couch. Should be able to make out flue in photo. Can always buy new furniture though. We made that couch work when we moved in. It’s a wrap around.

Distance from wall to door is 90” or 7.5 ft approximately.

 

[Microduck17]

I have 3 90s in both my house and garage stovepipes and they both draw fine but cleaning can can be a pain


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