I hooked the heat zone kit in the basement tonight but never did find any B-Vent pipe to run for the air so I went to lowes and bought some insulated flex pipe. You guys think this will be ok? Need to cut a little more clearance in the floor though. I ran a 6" non insulated pipe through the floor and hooked the flex duct to that..Not sure how hot this pipe will get but maybe I should give it an inch or so clearance with maybe a 6" fire stop? You guys see anything I am doing wrong please let me know.