I used a hose with a quick disconnect on the wave unit and left the valve outside so any leak ( hasn't happened yet but valves do sometime leak at the stem as they wear) would not be in the unit.
Mines on a class B so I just place it on the sink cover at night and let it run all night.
I leave one window open on the end of the unit and the top vet in the ceiling open. My class B is a 3 season unit but with the wave 6 I can keep it comfortable warm in 20 degree weather. It probably has about the same interior cubic feet as TC.
I am going to sell it and get a true 4 season unit, kind of hate to because I spent a ton of money on upgrades before I figured out its not as well suited for my camping style as it could be. Someone is going to get a nice B from me, live and learn LOL.