So I plan on taking the family to the Prairie Lights next weekend (should be about 3 hrs in the Bus) then up to Grandma's on OK for X-mas so i need a heating solution. So far I have wrapped the main tube with solar bubble wrap twice, tightened the clasps around the heater blower motor where they attach to the tubes. I was planning on rebuilding the accordion tubes but that involves ordering parts and dealing with asbestos rings. Which is no big deal but I have a another idea. Why not mount 2 computer fans (12v) to either end of the tunnel to push more air?Has anyone tried this? When I put my hand on the dash the air is hot enough but it just doesn't seem to be in a hurry ya know?