Hello all. First off I’d like to say that I love this forum! Now that I’m done suckin’ up, I’d like to ask it anyone sees an issue with this build. This is actually 2 pieces of sheet aluminum sandwiched together with Lava lock RVT and aluminum angled duct. I was thinking about re-attaching the original vent in back of the aluminum as a heat shield, but I am not sure if it will make a difference. Thank for any help.