Opened up the wall in the bathroom remodel (where there was an obvious bulge and crack in the old plaster) and I find an old thimble from the chimney – which is still in use to vent exhaust from the boiler – in the wall, stuffed with some kind of plaster or mortar. The thimble extends further into the room than I want to build out the wall, so I’d like to trim maybe an inch from the tile thimble. Any suggestions as to the tool or technique? Grinder? Saw?
And what can I use to re-stuff the thimble so exhaust gas doesn’t leak into the wall cavity?
Thanks for any help.
Bob
Replies
I'd just break it off carefully around with a hammer (tapping inward) and then patch it with hyraulic (non-shrinking) cement from the little pail. Don't think it's hot enough for refractory cement, and this will seal better.
Forrest - ready to get flamed
No, heat doesn't seem to be a concern. I've got it covered with a double layer of duct tape, and it doesn't seem to get hot when the boiler's running.
You don't have to provide some controlled break point on the thing before starting chipping away? I sure don't want to have to do a mojor chimney repair on the other side of the wall ...
Thanks for the info.
Diomand blade on a peanut grinder.
Alright, I'll bite... what's a peanut grinder?
Sorry , "peanut grinder" is slang for a 4"-4 1/2" grinder. With the diamond blade you can cut stone, terracotta, brick, concrete, tile etc.
They can't get your Goat if you don't tell them where it is hidden.
Never heard it called that. Does it grind peanuts too?
Probably , I am not sure which blade recommend for that job however . I picked up using the term from welders and steel fab shop people working on my jobs. I would guess it is a term used to differentiate between the larger and smaller grinders. On the other hand a lot of those guys were from Georgia and Alabama, guess it could have been called a goober grinder . ;-0
They can't get your Goat if you don't tell them where it is hidden.
Take it out and re brick it in so there is no chance of flue gasses or smoke ever entering the home.
Structo-lite is a pearlited plaster and fluffy enough to fill a void as such. You'd want a brick or such to take up the major space.
Spheramid Enterprises Architectural Woodworks
"Success is not spontaneous combustion, you have to set yourself on Fire"