I hadthe same problem with the heat I am also running two 1000watt. I had a small window air condition and had to switch it to much larger unit I was running can fan all day temp went down some but the can fan wassucking to much air that when I put my can fan on timmer and find a good amount of time to run fan. with the new air condition my temp stays at 72% and it goes up to 78% to 82% when fan goes on for short time just to clear old air.:stoned: