Drawing the heat out and proper intake is your best bet. You can also go with a Swamp Cooler to cool the room down. They are easy to build and maintain, search YouTube for some ideas on how to build one. I use one gallon frozen jugs instead of straight ice, that way I'm not dealing with emptying the cooler of water all the time. I recommend the gallon jugs of Hawaian Punch, the juice isn't bad and the jugs come with a carry handle. I have 8 of them, 4 go in the cooler and when they need replaced I just swap them out with the 4 from the freezer. It's a quick easy system.