we have a small fan in these blowing the air around the room and it stays about 85-90 degrees F in there most of the day.
jdogg - we put a window ac unit inside and it blew more hot air out the back so we tried putting it under the tarp we have around the room and it was still to hot, so i dont think theres anyway those are possible
and garden knowm - my friends house sits on concrete so theres no under the house lol
and if i pull air in from my room it have to leave the closet door open (its a sliding 2 door) and people would know im growing and im not a big fan of everyone knowin
but i tihnk im gonna go look for a small ac unit at wal mart maybe