Replacing Thimble

 
loxety
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Post by loxety » Tue. Feb. 19, 2013 3:08 pm

Whats the best way to get the rest of this old thimble out without busting up the tiles in the chimney? Cold Chisel? I think the thimble was originally 12" and is now about 5" left to break up. Its got some kind of cement around it as well as at the end where it meets the clay tiles.

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thimble.jpg
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freetown fred
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Post by freetown fred » Tue. Feb. 19, 2013 3:25 pm

Do it in stages--try for only the concrete first & then the thimble--If alls you've got is a cold chisel---have at it--go slow & your tile should be fine. Nice old boards on the original house. ;)

 
loxety
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Post by loxety » Tue. Feb. 19, 2013 3:34 pm

House was built in 1900, 5" ship lap, plaster and lathe. It's a fix-r-upper!

 
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Post by Wiz » Tue. Feb. 19, 2013 5:19 pm

You could drill holes in thimble and concrete to make it easier to chisel.

 
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Post by waldo lemieux » Tue. Feb. 19, 2013 10:40 pm

Howdy,

Best way is to get a small angle grinder and a 4" diamond blade .Reach in and cut length wise in the thimble about 1" apart at the top make three long cuts from front to back, strike on middle cut with cold chisel and the two top sections will fall out, make maybe four more cuts and remove. then do the same with the cement as necessary to accommodate new thimble. no worries!

Waldo

 
loxety
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Post by loxety » Wed. Feb. 20, 2013 3:01 pm

using a 3lbs sledge and cold chisel I got the terra cotta thimble out.. that mortar is some tough stuff!

 
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freetown fred
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Post by freetown fred » Wed. Feb. 20, 2013 3:31 pm

Everything was tougher in 1900 ;) Glad ya gother out--now on to phase-- 2 get er set & light er up :)


 
loxety
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Post by loxety » Wed. Feb. 20, 2013 3:50 pm

Still have to get some of the old mortar out.. my guess is several hours of work there. then place the new thimble and let the new mortar dry for 24hours. Code enforcement has to come out and check the box, same with home insurance co. Then Light it up!

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tools.jpg
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Post by loxety » Sun. Feb. 24, 2013 6:04 pm

knocked out the mortar

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Mortar removed.jpg
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Post by loxety » Sun. Feb. 24, 2013 6:07 pm

Testing the fit of the thimble

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Testing thimble fit.jpg
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Side view of inserted thimble.jpg
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Post by buffalo bob » Sun. Feb. 24, 2013 6:47 pm

looking good so far...now get her sealed up real good...i think I would try some refractory cement to seal it...gonna be tough getting it all around the thimble,take ur time do it rite the first time ...

 
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Post by freetown fred » Sun. Feb. 24, 2013 7:01 pm

L, how much space do you have between the end of the thimble & the chimney tile???? Yep, get that all filled in/pretty'd up before anybody looks at it ;)

 
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Post by loxety » Mon. Feb. 25, 2013 2:16 am

freetown fred wrote:L, how much space do you have between the end of the thimble & the chimney tile???? Yep, get that all filled in/pretty'd up before anybody looks at it ;)
less then an inch of space I think

 
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Post by freetown fred » Mon. Feb. 25, 2013 5:25 am

I know this is only my thoughts, but, if you've got 8" tile--or even 6" I would cut that thimble so it only goes into the near side of the clay tile an inch or a little more. It will give you a lot better draw.

 
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Post by buffalo bob » Mon. Feb. 25, 2013 9:35 am

take some rich stiff mortar almost like putty reach ur hand in there and pack it full of mortar at the joint of the thimble and the flue liner...refractory cement would be great as it will withstand the heat better reaching in there 12 inches is for sure a hand job...tools just wont git it packed in very good...


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