So I’m now in the planning phase of my chimney
I’ve had a few options I’ve been mulling through
And am stuck on a masonry chimney or a metal one
I’m confused by DavidS design for his metal to masonry connection for his pipe I’ve seen some drawings but I also am not sure if I want a metal chimney finish would probably go that route for weight issues only
which brings me to a few questions on masonry chimneys
1. What is the formula for casting home brew vs the regular ratio
is it just the same with a structural component added in such as fibers or metal?
Where do you find the fibers for adding in or other materials and are there multiple options?
2. I know I at least want to cast the first part of the chimney but has anyone ever tried to cast a one piece chimney? Let’s say the lower flue portion off the arch to a 2-3 foot chimney ? I have enough materials lying around to make a form big enough so cost wise it’s not a big deal
3, if going with a masonry chimney obviously there’s much more weight involved versus a metal chimney would it be recommended to have double brick walls on either side of my outer arch? To helps with strength?
I figured I was already going to do this anyway with a decorative brick
4 . can anyone provide pictures of their thermal break?
what did you do the floor? I figure I could cut it with a grinder before building the outer arch
do you just leave the floor with a gap ?
That’s it for now
currently in planning phase for the final finishing stages of the oven a lot of cool things coming![Cool](https://community.fornobravo.com/core/images/smilies/cool.png)
I’ve had a few options I’ve been mulling through
And am stuck on a masonry chimney or a metal one
I’m confused by DavidS design for his metal to masonry connection for his pipe I’ve seen some drawings but I also am not sure if I want a metal chimney finish would probably go that route for weight issues only
which brings me to a few questions on masonry chimneys
1. What is the formula for casting home brew vs the regular ratio
is it just the same with a structural component added in such as fibers or metal?
Where do you find the fibers for adding in or other materials and are there multiple options?
2. I know I at least want to cast the first part of the chimney but has anyone ever tried to cast a one piece chimney? Let’s say the lower flue portion off the arch to a 2-3 foot chimney ? I have enough materials lying around to make a form big enough so cost wise it’s not a big deal
3, if going with a masonry chimney obviously there’s much more weight involved versus a metal chimney would it be recommended to have double brick walls on either side of my outer arch? To helps with strength?
I figured I was already going to do this anyway with a decorative brick
4 . can anyone provide pictures of their thermal break?
what did you do the floor? I figure I could cut it with a grinder before building the outer arch
do you just leave the floor with a gap ?
That’s it for now
currently in planning phase for the final finishing stages of the oven a lot of cool things coming
![Cool](https://community.fornobravo.com/core/images/smilies/cool.png)
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