WHO has installed ATWOOD 35000 btu heater in trailers

[Ministik Man]

So I bought an Atwood 35000 BTU heater for the enclosed sled trailer and before I install it I wanted to find out some of the does and don't. Would like to install it only once ....hahaha Thinking of ducting into 2 - 36" cabinets on each side of the furnance then 2 ducts down and to the side to dry clothes/gloves WHAT DO YOU THINK WORKS