Well...4' does make a difference.

[Beetle-Kill]

Added the 4' chunk of pipe today. Total verticle rise is now 17'8" from stove collar to base of cap.
Still not ideal, but much better so far.
Had a decent crosswind all day, drafted much better, and the load in the stove was small (4 splits)
My gut tells me it's going to work OK on a 1.5 setting without the fans on. This will be huge.
As a plus, I can see the stack from the back side of the house, nice to compare my lack of smoke to the neighbors stack (like they started a diesel engine).
Check in later, JB

 

[pen]

Did you end up having to add additional bracing?

pen

 

[Beetle-Kill]

Pen- yeah, I added the brace kit. Centerline of pipe is about 94" to base of cap, measured from the roof surface, on pitch. I put the brace collar on a little higher than 2/3rds. - per the destructions.
Check in later, wife "went to town" on the hearth in the kitchen, all gone now. I have my work cut out for me for a while (framing, insulating, drywall, etc,etc....)

 

[pen]

Sounds like a lot of progress is, well, in progress. Sounds great, pics would be better tho

 

[begreen]

There should be a brace at every 5' above the roofline. Sounds like at least 2 are in order here.

 

[Beetle-Kill]

There should be a brace at every 5' above the roofline. Sounds like at least 2 are in order here.

Ugh, had to take a break..
BG, the roof brace should be OK. Check the Selkirk UBRK install. instructions. Fig.8 is what I had to do. The illustration is almost a direct reflection of my install.

 

[BrowningBAR]

Remember if you have delayed back ache or if your new erect pipe lasts longer than four hours you should see your doctor... or chimney sweep, if he's into that.

 

[begreen]

Ugh, had to take a break..
BG, the roof brace should be OK. Check the Selkirk UBRK install. instructions. Fig.8 is what I had to do. The illustration is almost a direct reflection of my install.

Thanks for that pointer. The Selkirk docs are incomplete. There needs to be a brace at every 5 ft above the roof penetration. Duravent has more explicit instructions.

Bracket must be installed at every 5-foot increment of chimney height above the roofline, leaving no more than 5 feet of chimney extending
above the last pipe bracket. The Extended Roof Bracket consists of the Pipe Band, the Adjustable Legs, and the Roof Brackets.

With a fire burning during hurricane force winds you definitely want that stack well braced.

 

[Beetle-Kill]

BG, I put the collar at about 64" up the pipe, leaving about 30" above it. Is this going to work?

 

[begreen]

Yes, that sounds ok. Sorry for the caution note. It wasn't clear the total amount of pipe sticking up. I was visualizing 10 ft+ of pipe sticking up there. With 94" you should be fine.

 

[Beetle-Kill]

Better to be safe than sorry.
It's drafting much better, get a good wind gust and you can hear the air being drawn through the T-stat housing.

 

[bag of hammers]

Measuring from the low side of the slope, I have almost exactly 5' to the top of the cap on my chimney. The Chimney pipe rests in a cathedral box support inside. I have no bracing. We get some winds in the 60+ km/hr range especially in the late fall, early winter time. All chimney sections have locking bands holding them together but no bracing at the roof. This seems like a kind of "borderline" case since it's almost exactly 5'.

Should I be worried?

 

[begreen]

How is it drafting? Personally I think I would brace it, not only for the wind but for snow build up as well.

 

[pen]

Measuring from the low side of the slope, I have almost exactly 5' to the top of the cap on my chimney. The Chimney pipe rests in a cathedral box support inside. I have no bracing. We get some winds in the 60+ km/hr range especially in the late fall, early winter time. All chimney sections have locking bands holding them together but no bracing at the roof. This seems like a kind of "borderline" case since it's almost exactly 5'.

Should I be worried?

Why worry? Put a brace on it then you know you are good up until the roof lifts off.

pen

 

[bag of hammers]

Thanks pen / begreen. The chimney drafts really well. Probably seems like an obvious thing to you folks, but lately I just seem to be really prone to either over-thinking or completely overlooking things. Sanity checks are pretty common for me.

 

[Dakotas Dad]

I am of a fan of.. "gee I would feel better if I made that a little stronger/stiffer/tighter..."

If for a moment or two you contemplated the idea of a brace.. it needs a brace. My brain goes in circles if I don't do whatever it was that got it started..

 

[bag of hammers]

I am of a fan of.. "gee I would feel better if I made that a little stronger/stiffer/tighter..."

If for a moment or two you contemplated the idea of a brace.. it needs a brace. My brain goes in circles if I don't do whatever it was that got it started..

Lol. Pretty much describes me too - thanks for the advice.