We've got crazy temps still and we have to keep the room closed off, the guy won't let my touch anything at all in the apartment so the exhuast and intake are a bit window ghetto, so probably best left with 2 lol. I told him, if we vent out into a cupboard next to the room (literally just thin bit of partition there to cut) we would, A/ not be blowing hot air out of the window, and b/ be able to just leave the window open and not all taped up and sealed off.....anyway, grumble grumble, not the only thing about this venture that I could complain about....some people just can't be told.