A:Answer We cannot advise on using the washer dryer combination unit in a RV. This unit is designed for residential purposed. Install the washing machine on a solid floor that is strong and rigid enough to support the weight of the washing machine, even when fully loaded, without flexing or bouncing. If the floor has too much flex, you may need to reinforce it to make it more rigid. If the floor is not solid, it may cause severe vibration and noise. ^CP