Remodeling and Tapping Into Chimney- Insulation, Barriers ?
Posted: Tue. Nov. 10, 2015 10:52 am
Help me lay this out and do it "right". Materials and even layout to some extent.
Those of you following my previous posts know we've been "remodeling" for a few years.
Try to picture this situation. I'll soon be putting together a rough drawing and will post a screenshot shortly.
About to move to the Living Room and have a TLC-2000 (anthracite stove) I purchased a while back for "shoulder months" that only need a little heat (not the main boiler), ambiance, backup for extended power outages, and adds a nice touch to the house.
The chimney is directly outside the location we have planned for the stove.
The chimney is a double, brick faced over chimney block, with clay liners. The first story (where the living room is) is brick faced on outside, but I think the chimney block is right against the outside celotex wallboard. No house wrap or insulation between brick and celotex- one of the reasons for the major remodel.
The walls are 2x4 stud with fiberglass insulation, then walnut paneling on inside. Plywood floor with carpeting over a full basement with block walls.
I can tap into the chimney from about 18" from floor to the ceiling, my choice
The plan is to pull the inside wall covering, strip insulation, do any wiring upgrades, and upgrade insulation.
We can either duplicate what we did upstairs- fiberglass insulation in cavities (repair or replace), 2" foamboard, OSB, then a wall covering, or.... thicken the wall to 2x6, install 1/2" or 1" foam board between the studs, foam it in place (spray foam to seal the edges against the studs and top/bottom), add fiberglass insulation, then cover with...whatever.
We're thinking about cutting the very dark walnut paneling in half for drywall on top half, chair moulding, and paneling below. Lighten up the cave-like appearance.
EXCEPT where the stove will be.
Fireproofing and foam issues I think?
Thinking about Roxul in wall, triple wall through wall pipe into chimney, concrete board on wall behind stove, stone on the cement board, concrete or stone base.
BUT- really want to seal the brick/celotex from the house. I think it actually "produces" cold air The air gap between the brick and wall...old houses, LOL.
So I'd like to find a way to use foam in the cavities to seal air and moisture. I *wish* I had access to outside wall, I'd add foamboard or at least house wrap, but alas...old houses
Questions and concerns
1. I want to avoid adding big sheets of metal to the wall with standoffs because I messed up clearances or materials. It's a living room. It won't be "fancy" but "nice" would be good
2. I don't have a problem adding support to the floor in the basement. It's directly above the spot where we pulled the old hand-fired Bit stove. I only want to leave enough space for a small wood stove in the basement- just for local heat. Even block pillars are okay if needed
3. I don't know how hot the chimney block would get? Although this stove is coal "and wood", mostly would be coal because of the mess. Stove pipe would enter high in the wall, I guess, so not much heat?
4. With triple wall, do I still need the air space around the thimble area in the wall? Do I still need a thimble? Eliminate airspace or fill with Roxul?
5. Is foam in the wall still okay behind the concrete board? I don't want to create a cold wall as this stove may be for occasional use.
6. Stone veneer will most likely be the wall covering up the lower half of the wall and into the corner.
7. There is a window about 8'-12' or so from where the edge of the stove is. The brick was built around it, so a replacement window goes in there.
8. How close to the ceiling/above the stove is ideal for the chimney entry? Cleanout is outside the house at base of chimney. Interior bottom of chimney (without foundation) is about 3' from bottom of floor. Living room is partially below grade.
9. Any special covering material for ceiling above stove? It will "eventually" be replaced, is 12" square white panels stapled to a grid now.
10. Any other considerations???
I've always had to deal with whatever conditions and materials were in place. Never had the chance to lay it all out up front. Want to get it as ideal and trouble free as possible.
I took good note as others have over sized their platforms to allow coal, tools, whatever to be stored on it and keep the house mess-free
Thanks!
Those of you following my previous posts know we've been "remodeling" for a few years.
Try to picture this situation. I'll soon be putting together a rough drawing and will post a screenshot shortly.
About to move to the Living Room and have a TLC-2000 (anthracite stove) I purchased a while back for "shoulder months" that only need a little heat (not the main boiler), ambiance, backup for extended power outages, and adds a nice touch to the house.
The chimney is directly outside the location we have planned for the stove.
The chimney is a double, brick faced over chimney block, with clay liners. The first story (where the living room is) is brick faced on outside, but I think the chimney block is right against the outside celotex wallboard. No house wrap or insulation between brick and celotex- one of the reasons for the major remodel.
The walls are 2x4 stud with fiberglass insulation, then walnut paneling on inside. Plywood floor with carpeting over a full basement with block walls.
I can tap into the chimney from about 18" from floor to the ceiling, my choice
The plan is to pull the inside wall covering, strip insulation, do any wiring upgrades, and upgrade insulation.
We can either duplicate what we did upstairs- fiberglass insulation in cavities (repair or replace), 2" foamboard, OSB, then a wall covering, or.... thicken the wall to 2x6, install 1/2" or 1" foam board between the studs, foam it in place (spray foam to seal the edges against the studs and top/bottom), add fiberglass insulation, then cover with...whatever.
We're thinking about cutting the very dark walnut paneling in half for drywall on top half, chair moulding, and paneling below. Lighten up the cave-like appearance.
EXCEPT where the stove will be.
Fireproofing and foam issues I think?
Thinking about Roxul in wall, triple wall through wall pipe into chimney, concrete board on wall behind stove, stone on the cement board, concrete or stone base.
BUT- really want to seal the brick/celotex from the house. I think it actually "produces" cold air The air gap between the brick and wall...old houses, LOL.
So I'd like to find a way to use foam in the cavities to seal air and moisture. I *wish* I had access to outside wall, I'd add foamboard or at least house wrap, but alas...old houses
Questions and concerns
1. I want to avoid adding big sheets of metal to the wall with standoffs because I messed up clearances or materials. It's a living room. It won't be "fancy" but "nice" would be good
2. I don't have a problem adding support to the floor in the basement. It's directly above the spot where we pulled the old hand-fired Bit stove. I only want to leave enough space for a small wood stove in the basement- just for local heat. Even block pillars are okay if needed
3. I don't know how hot the chimney block would get? Although this stove is coal "and wood", mostly would be coal because of the mess. Stove pipe would enter high in the wall, I guess, so not much heat?
4. With triple wall, do I still need the air space around the thimble area in the wall? Do I still need a thimble? Eliminate airspace or fill with Roxul?
5. Is foam in the wall still okay behind the concrete board? I don't want to create a cold wall as this stove may be for occasional use.
6. Stone veneer will most likely be the wall covering up the lower half of the wall and into the corner.
7. There is a window about 8'-12' or so from where the edge of the stove is. The brick was built around it, so a replacement window goes in there.
8. How close to the ceiling/above the stove is ideal for the chimney entry? Cleanout is outside the house at base of chimney. Interior bottom of chimney (without foundation) is about 3' from bottom of floor. Living room is partially below grade.
9. Any special covering material for ceiling above stove? It will "eventually" be replaced, is 12" square white panels stapled to a grid now.
10. Any other considerations???
I've always had to deal with whatever conditions and materials were in place. Never had the chance to lay it all out up front. Want to get it as ideal and trouble free as possible.
I took good note as others have over sized their platforms to allow coal, tools, whatever to be stored on it and keep the house mess-free
Thanks!