Be sure if you take a portable a/c to get the one with 2 exit (one to push fresh air in) and (one to push hot air out) otherwise you will need to add some fitting to you re OUT. otherwise heat will be a problem because they push lot of HOT air. (Using one at the moment)Tried the iceboxes, biggest waste of time and frustration EVER. Do yourself a HUGE favor, buy a portable AC, smoke a bowl and call it a day.