Originally Posted by
MaMa Mount
Can someone please tell me if the yellowish colored fiberglass should be exposed in a metal firebox where the firebox is connected to the flue. There was this insulation that visibly had smoke or soot on it. I couldn't take a picture of it at the time. Anyone have a clue of what I'm trying to explain. Sorry if I sound confusing.
Some metal fireboxes with a metal smoke chamber require insulation in this area to allow for expansion and sealing of the transition between the vitreous clay flue tiles and the metal smoke chamber flue tile receiver.
If the insulation is intact and is a gasket, as I expect it is, it shouldn't be an issue.
As with nearly all chimney issues, particularly with real estate transactions, recommend a Level 2 inspection by a CSIA Certified Chimney Sweep or a FIRE Certified Inspector.
With masonry fireplaces, a video camera should be used to thoroughly inspect each flue tile joint for integrity.
Bart Ogden
Wichita, KS