In a message dated 2/9/2015 11:26:27 A.M. Eastern Standard Time,
RNicholl@NBNet.nb.ca writes:

1) In  the cab there is a vent in the base of the driver's seat pedestal;
 I

never seen that in my life, but then again ive never seen a canadian
waterboxer van with a eberspacher.. so i guess this is specific to  that.

2) In  the camper cabin, there is an aft facing vent along the raised edge
where the  front seat pedestals and ramp between the front seats meets the
kitchen/cabin  floor.

much like the aircooled and diesel vanagons which have a vent there.   is
your walkthru area carpeted, or a plastic piece like in the diesel  vanagon?