We have a 6000btu Global portable in our 32 ft Outback. It makes a tremendous difference on 90* days when your site is in full sun all day. It only takes up a 14"x14" square. It sits in front of our rear window that cranks out on the bottom. I removed the screen and installed a piece of plywood and cut the hole for the hose and also painted it black. I just crank the window open when we need the extra a/c. As far as condensation, it's a non-issue. It collects about a dixie cup per day. I'm guessing it's because we only use it when the roof a/c won't keep up so the air is already pretty dry. That was a concern when we first started using it.
