hey ...help...im a rookie ...i built a an 8x8x8 room in my garage ...its insulated ....air tight..i have an rv door on it...i have it set up with 2 1000 watt hps vented hoods that the exhaust fan circulates through as well as a carbon filter..im only running one lamp right now...i have an intake fan pumping air from outside about four inches from the floor ..i have a 10000 btu portable ac that has its own 6 inch exhaust separate from the exhaust fan .i also have some oscillating fan circulating and moving air..i cant get the room to stay in the seventies past 3 oclock with the recent weather being in the 90 s..i start my veggies day at 1 pm ..but the room is always reaching 80 - 86 and i cant bring it sown....until late evening....please help...