I have a 20 X 30 garage that I have a recording studio in. At first when my wife ordered me this AC unit ( being a HVAC Tech) I was not sure that it would keep it cool enough with the heat of the equipment and all the people in there. But I must say I'm impressed. But be ready to build your own window hook up's. The ones with the unit aren't very good. But the unit will do the job.