I'm helping a friend with a Blaze King (probably Princess) install. For various reasons, it seems as though their current masonry chimney is inadequate; the opening is way too low and the liner doesn't look in great shape.
So I'm thinking of recommending a new Class A metal chimney; it's only affordable if we can DIY it, so I want to explore that. I have decades of experience with wood burning, I'm an engineer, and I have a lot of successful DIY experience. So despite the obvious risks, I think it's reasonable.
It looks like the materials can be had for no more than $2000. Attached is a shopping cart totaling $1700 (the locking bands are chopped off the bottom of the file), and I'm sure there's various braces and roofing supplies needed, and probably something I'm overlooking. I'm confused about whether this piece is needed in an un-occupied and un-insulated attic (there is, of course, insulation in the ceiling joists on the floor of the attic): https://www.efireplacestore.com/cpf-70672.html ... if you frame things so as to keep the batts 2" from the pipe.
The install instructions look pretty comprehensive ( the URL doesn't seem to work but google "duratech instructions"); it seems like the key points are:
1. The chimney reaches high enough - 2ft above the highest thing within 10ft horizontally.
2. Seal the roof penetration flashing properly.
3. Brace the ceiling support box adequately.
4. Keep all combustibles at least 2" away.
So I'm thinking of recommending a new Class A metal chimney; it's only affordable if we can DIY it, so I want to explore that. I have decades of experience with wood burning, I'm an engineer, and I have a lot of successful DIY experience. So despite the obvious risks, I think it's reasonable.
It looks like the materials can be had for no more than $2000. Attached is a shopping cart totaling $1700 (the locking bands are chopped off the bottom of the file), and I'm sure there's various braces and roofing supplies needed, and probably something I'm overlooking. I'm confused about whether this piece is needed in an un-occupied and un-insulated attic (there is, of course, insulation in the ceiling joists on the floor of the attic): https://www.efireplacestore.com/cpf-70672.html ... if you frame things so as to keep the batts 2" from the pipe.
The install instructions look pretty comprehensive ( the URL doesn't seem to work but google "duratech instructions"); it seems like the key points are:
1. The chimney reaches high enough - 2ft above the highest thing within 10ft horizontally.
2. Seal the roof penetration flashing properly.
3. Brace the ceiling support box adequately.
4. Keep all combustibles at least 2" away.
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