Thanks everyone for the great replies and information, this gave me a lot more to consider than what I was previously thinking about. I am redesigning the layout of our 13' Boler
by turning the front bunks 90 degrees and loosing the kitchen sink/stove/refrigerator/furnace area so that we can put a shower & toiler where the front bunks originally were. We could put a furnace under the bottom bunk about where it was originally in 71' but not sure if we want that LP furnace under our son's bunk so we are thinking of putting one on the curb side towards the bottom near the wheel well area so that we can still have a refrigerator
above it (other than the refrigerator
& maybe a microwave
or toaster oven our kitchen will be an outside camp kitchen). As long as there is room for the vent there without interfering with the wheel well area the only other problem I have is how to run the LP line for it.