Mr.Cyr.
I do thank you for that effort you made in addressing the photo and information.
As to your statement about plumb.
> I still to this day use plumb lines when building chimneys. except for above roof line and under 4 feet or 12 to 15 courses.
The reason being, as you mentioned about having your mason rebuilt from deviation.
It leaves a slim chance of going or wondering to the point where you can not cobble back to level or plumb.
> I will take the time to make a gig to allow the masons and myself the ease and speed of building using a plumb line.
>It also allows you to build and referance that structor as streght as possible.
> I still make a ‘‘story poll or in cases a story board’’ as shown to me may years ago for referencing course lines when you can not just use math or masons tape to conduct a repair.
> An example ‘’ for cobbling.’’
I have no doubt that your work is proper.
> I am only using this as an example of my building practices .
Sometimes by getting to emotionally involved in an honest mistake ( as I have made) well tend to draw ones eye and thought away from the real point at hand.
> The photo.
> Yes I posted a mistake.
I will disagree with your point on the build up of cerisote in any thing that is not plumb and smooth as compared to a chimney that is stepbuilt for angle.
I could be wrong and I am stating my evidence on visual experiences conducted during my build carrier.
Chimney with no liners ( open bed jointing and untooled jointing) also with exposed brick
and no liners.
1>They were all built up with oils the byproduct of oil burning furnace.
The masonry absorbed the oils to a depth of over 5 to 6 inches in a double width brick wall… the chimney built in the mid fifty’s.
They were so dangerous and furnace installers told then to rebuild above roof line before they would install liners.Case 1
2> I have repaired, inspected , cleaned and rebuilt many wood burning chimneys, also the bed joint and butt jointing would absorb any creosote and be dirtier than lined chimneys.
Lined chimneys where easier to clean being smooth and had less chance of animal habitation due to the fact the the liners openings were smaller than unlined brick chimneys.
They were easier to control drafting with liners exposed 4 to 8 inches as opposed to unlined chimney’s the have a tendency to back-draft due to no liners installed and the crown was insufficient and no rain notch.
I am only pointing out my observations so please do not feel that I am being condescending.
Its just my view.
They were more