We have a eu3000 Honda, it works great, can run one AC and a few other items. It is very quiet. I don't think it can be used inside a closed compartment, it req air around it for cooling. It doesn't have a regular exhaust pipe it has a vent like finned area at the top, so no way to route the exhaust outside. The built in units draw the cooling air from an area below them and they need the compartment closed.
I installed mine on a slider unit and slide it out to run, and stow it away when not needed. Works great for me.
There are pics here on a post of mine
http://www.5thwheelforums.com/forums...238&highlight=
Hope it helps!
Cheers,
Bill