[B_and_D]

If you could rig it up somehow so that there was a cowling or something that you could use to vent the hot air it gives off outside through an open window it might work. That's how the side A/C's work, but TM cut a hole in the side under the street side counter instead of using a window. I don't know what shape the unit is, but maybe you could use some sheetmetal, a plastic bin or something that would enclose the unit, let the cold air out the front, and set up snug against a window to let the heat out the back. I know it wouldn't be attractive, but in the heat of the day, with only the dogs in the trailer, who cares?