Since my Quad is apparently on infinite backorder, I would like to do as much as I can to prepare for the delivery and install. I am planning to install the vent pipe myself, and have decided a single vertical vent is my best option. Based on the attached photo, how high will the pipe need to be once it exits the roof? Will I need double or triple vent pipe for the inside portion? (I do plan to burn corn as well). Also, I have heard good things about the Selkirk brand of pipe, but cannot find a source where I can talk to someone and put together a package. Any help with this is greatly appreciated. BTW, I just got a pellet price of $380 per ton from the same dealer in CT! Thanks guys.