Originally Posted by Bassdogs
X2. Also adding weight to a unit that probably wasn't to handle it might be a problem. They do make a portable AC unit that vents thru a window thru a 6" flex hose. They pull about 10Amps and could be powered by running a separate heavy duty extension directly.
I have seen lots of these little portable units in PUs, the run the 6 inch hot air duct out a corner seam.
We used one at our old house, it worked great, and it was very small.