Space Below the Floor

[bevans6]

Thanks, Craig, and I'm going to go look.  But I think I know what I will find - on the MC-5's, which are a lot shorter (less tall?) than the 40 ft buses the air return to the heater is only through the center of the bus directly over the heater bay.  No air return from the very front, or from the entire back half of the bus.  Heat distribution is from out to the side ducts at the base of the walls and up to the bottom of the windows.  Which reminds me that I could fish those side air ducts and pull wire through them.  I don't think they were removed by the previous owner.