Originally Posted by
Bob Harper
Jon, the clearance is to the outside of the chimney proper--Bob
Bob,
Please define "outside of the chimney proper".
I've seen some with huge masonry walls, long, tall, and wide, in which a fireplace and chimney were only one small part of that large and massive masonry structure.
Wood furring strips on the CMU.
On something like that, what is considered "the chimney proper" and what is "outside of" that?