The portable air conditioner shown at Home depot is similar to one I bought and used in our pop up a few weeks ago. It also is 9000 BTU's. All you have to do is vent the hose, like a dryer hose, outside. I zipped up my side window of the pop up around it and it just blew through the screen part and it worked well. It was hot in June of course and it kept us cool. We did have the emergency blankets over the tops of the 2 ends though. It dropped the temperature from 90s to 70's and lower, and that was in a 22 foot pop up. I found mine NEW on ebay and paid $200 including shipping, although I think something may have been a little fishy with it knowing how much shipping was for it. Walmart.com has the portable units too and they can be picked up after ordering at your local store.