I've seen pre-charged units, with pre-flared lines, but I was under the impression you needed someone to vaccuum the lines, see if they hold vacuum, and then to do the leak tests later on. But you still need to install it by drilling holes in the wall and running lines, and I would need to check with my landlord first. I mean, I'll give the portable AC a try, I think it'll work the way I've described, as long as I can match the inline fan speed to the flow coming from the AC exhaust. If it doesn't work out, It won't be costing me anything, since I can always put an inline fan and filter combo to good use...lol