Heating a small trailer without an installed gas furnace

Furnace takes up a lot of space in a small trailer. I can see advantages of not including a Propane furnace in build considering most campgrounds have electric available. But for those few instances where shore power isn't available, what are your thoughts about a Mr Buddy Heater running all night or just at bedtime and then in the morning in that enclosed area? Not sure I would like the smell I've been told a Mr Buddy puts off in such a small space. In a tear drop the vents are open all the time so as not to wake up dead. Just curious as to what Scotty and other small trailer owners use if they don't have a furnace included in their build. When I ordered my new trailer I opted for not getting the furnace option because I don't like the moisture a propane furnace makes or the space it takes up. Wondering now if I shouldn't have just ordered the furnace.
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