If anyone else has a motorhome like mine I would like to know how many furnace vents you have in the floor..I have 4.They only go half way to the front..
I have a 2012 378 and have 6 main vents for the main furnace and 2 vents on the other. On ours the one at the tops of the steps goes side to side and approx. 6 inches inward on the carpet is one going from front to back (of MH).. Hope this helps.