A/C my friend, 99 dollars at lowes or home depot for a new frigidaire unit (the small one) and it can cool my tent to 60 deg F with a 600 watt light. It can blow out 35 degree air, nuts. I just plumed it into my tent while it sits in a window. I don't know why I have never have run one before. It makes life so much easier. Good luck JR
I can post some pics if you want