1) Stick dry ice in the vent.
2) instead of pointing a fan out the door, point a fan into the vent to slow it down.
3) drill a few holes in the vent in the room before it so one room takes slightly more heat than before, and hot room takes slightly less.
4) install a misting device
5) make the room a "No Clothes Allowed" room.
6) Embrace the heat and turn it into a green room. Or paint the room like with a beach motif. You can even include ocean sounds and steel drums.
7) Is there a window that is taking in a lot of sunlight during the day? Cover it with foil.
8) Instead of one fan out the door, try two fans... Or a giant fan...
No need to thank me, it's what I do.
Signatures are for fags