Regarding heating, that would seem very easy as mentioned due to the small size, in a cooler climate when the furnace is heating the van
anything bare metal or glass will become extremely wet. On our camper there is only one small strip of metal around the door combing, in the morning it is dripping with water, even with good venting at night.
I see most of the Class B's are all glass on the sides, windshield, doors etc.
Also anyplace unseen where they missed putting some kind of vapour barrier etc. would also be dripping?
Is this a problem for B owners, if so how do you prevent it?