Does anyone know the thickness of the pad poured for under a fireplace and
its hearth? I wish to remove my fireplace and rebuild a wall that won't let
as much air in as my fireplace wall does.
Also, does anyone have an idea on how deep the foundation that supports the
brick of the fireplace firebox and chimney is? It seems to be a separate
pour from the regular foundation wall. I'm guessing at that as I do have a
regular foundation wall in the basement and that little jut out that the
exterior of the fireplace is built on outside.
PS: The chimney is capped and I have no intention of going back to burning
wood. Also, I am replacing the gas fireplace with a direct vent,