We have a 271 bh, no coroplast belly, and it works fine in our spring/fall camping. The furnace puts out lots of heat (ours is floor ducted). Added fresh tank heater, and some xtra insulation in places. Very happy with it.
They are not winter campers, lots of uninsulated areas like outside shower, compartment doors are minimal, skylights, roof
vents, windows etc.
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2012 Z1 271BH
2009 F150,4.6 3V. 3.73LS,9.75"
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