[MikeM]

I've found that the only practical and convenient place to mount my RCA outdoor compact Yagi antenna is onto my 5" O.D. double wall stainless steel furnace gas vent pipe (the attic didn't work due to roof tile and neighboring house interference). The pipe is very solidly attached with a heavy-duty bracket on the truss directly under the roof sheathing so I'm not worried about it being able to withstand wind load. The antenna would be only about a foot above the top of the pipe - to the side, not directly above it. I would mount the mast to the pipe with galvanized brackets that offset it about 6" to the side of the vent pipe.

Is this an acceptable place and method to mount the antenna or is there something I'm missing? I find plumbing vent pipes mentioned as possible mounting points but not stainless gas vent (chimney) pipe.

I'd appreciate feedback on whether or not this mounting method will work okay.