We have a small cabin at Big Sky, Mt. Approximately, 50 years old. Beautiful 1800's stove refinished. Cabin was refurbished with new siding and metal roof. The thru the wall chimney was taken off and not replaced. The Chimney guy I called said it did not meet code. I have to figure out how to support the outdoor chimney as it goes up 8ft. How do cabin owners support the pipe going up outside?