Has anyone ever had an issue where ice falls and hits their exhaust pipe? Two sizeable pieces have come off the roof this year to hit the pipe and scare me to death. I was considering looking at the specs of how much room the exhaust needs, and then building a structure to stop ice from hitting the pipe. Has anyone ever done this or faced a similar problem? I will have to upload pictures of this later today when the sun is up and I can get out there to do so.