"My only advice is to try to stay away from any steel you may have in the slab (rebar?). I have one TC 1" from the hearth surface, one TC under the firebrick on the hearth, and will have another under the portland/vermiculite layer (Hole is…"
Started this discussion. Last reply by Ron Rathburn Apr 1, 2009.
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Posted on March 16, 2009 at 6:40am
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