AC test 2: One vent open on the main level, not in the room where the thermometer is.

Results: The living room was 5 degrees cooler then the rest of the main level, but the rest of the main level had trouble keeping up. Not acceptable.

AC test 3: Have one open vent and open up the other vents just a little on the main level.

Results: It made the upstairs too warm, and still didn't effectivly cool the main level.

I don't really want to try to run the fan ALL the time, so today on my way home I'll be stopping off to get a small window air unit to help in the cooling of the upstairs.