I believe I have everything I need for my install. My set up is 6” out of stove a Clean out T, then 12-15’ of vertical pipe, I have a Ceiling Support at the ceiling and then a pipe support bracket in the attic then Flashing Cone, Storm Collar, and finally the pipe cap, All in 3”. I am looking at (according to standard calcs) 11.5-13’ of total distance that I have to run the pipe from stove exhaust to outside. One area I am a little fuzzy on is sending the pipe through the roof. It is my understanding that I should have a Storm Collar on top of the Flashing cone and then at least 3" of clearance around the pipe and then put high temp sealant around the Storm Collar and the Flashing Cone. Am I missing anything?