try to rig up a hose, that draws in air from outside the closet, even it's at the bottom of the door,run it too your fan, duct tape it to the back of it.
it'll tend to pressurize the room and force the hot air out the cracks.
punch or drill holes in the ceiling, they can easily be plugged with a little dry wall, vent out into the attic, or empty space between floors, what ever you have.
if you rent or something, try and drill a 3/4 inch hole in the floor and run a piece of conduit to the outside or crawls space if you have one. thats nothing to fix, just pull the carpet back over it and no will ever know when/if you move.
there's all kinds of things you can do.
I have even gone through the wall(closet) and run a hose to the other drywall and just drilled a few holes. then put a vent cover over it, made it look like fresh air intake for ac unit.
put a dummy heat vent in that wall, make it look like heat, and guess what, heat will come out it.
easy to patch when you move.
glad im not in the 20's..
brrr, gave that up when i moved to florida for the last time from cleveland ohio., south carolina is as far north as I will go now.i joined navy and ended up at great lakes at 40 below. basturds, i sighned up for a west coast hawaii thingy. I'm allergic to cold now. but florida is the extreme, screw that place.
south carolina is cool.not too hot, not too cold. no-one knows me here, i'm invisible, as long as my mouth stays shut, theres no chance of the law finding my grow. i dont bring people here. made them think I was weird in that way (ha ha), plus I dont want ripped off or robbed by a nut.
world is too dangerous now.
noticed lots of growth on my children, these cfls really work.
had to go and double black plastic my bedroom window over the white shade though. on the outside it's a white shade and inside pitch black dark, but no-one but me see's it so who cares, but before i doubled up, I had light laser beams coming from little cracks in the plastic.
freaked me out. good thing it's in the back of the house.