Furnace needs propane and 12V DC to function
Furnace needs minimum recommended airflow to & from furnace or it will overheat tripping the High Temp Limit Switch .....then furnace will cool down/refire/overheat ---trip until temp reaches t-stat set point.
So IF furnace 'return' and/OR Too Many discharge registers are blocked it 'limit cycle' Burner On/Off
SO answer is 'Depends' on your trailer layout.
Try it BEFORE you need to have it and see how it functions.