**Does a masonry chimney of a certain height require bracing? If so what are the height requirments.
This one was recently built and has no bracing at the roof.
I tried my hardest to open the access to review the flue in the basement.(That is open at the exterior with no cap)
13 year old mid efficiency 100,000 BTU furnace and hot water tank vent up the chimney. How many years till they rebuild another chimney?