We're hoping to build a new house this year and am planning on putting in a woodstove on the back wall of the great room. The back wall doesn't go all the way to the ceiling since there is a loft directly above. Our thought was just run double wall pipe up to the peak then out to the roof. The problem is the ceiling height of the room is 20ft. We can't afford to do a full masonry chimney or even a plywood built-up/rock sided and wanted to do just the stove pipe. I was told you can't rest the entire pipe weight on the outlet of the stove and that there would have to be some supporting bracket somewhere. Is this true? Not sure where would could support it, since the loft is directly above. Thanks for the help.