So, I have 10x10 grow tent inside a 21x19 garage. The garage doesn't have the best insulation but it is warmer in the garage than it is comparing to outside temps. I have 6, 315 watt cmh lights. 4 at 4200k and 2 at 3100k. For cooling we have a two portable acs, dual hose system at 14,000 BTU...