What did your autocobs replace? (or will replace).....they made a major difference in heat for me....I'm 10 degrees F cooler (for this time of the year)..
Same with mine 10 dgrees easy..before I had to run exhaust fan at full speed to keep it under 84ish, now with 4 Autocobs in a 2x4x5 tent...I run exhaust fan just between a quarter or halfway to maintain between 75-80 degrees