You need to keep fans running at a rate of 60 air changes per minute. Keeping the lung room around 18'C will help keep your grow space at an even temperature. As long as the temps are between 21-26'C, RH 50-55%, all should be good. Good luck
Yeah my air flow has been turned down a bit to keep temps up, even got a radiator in the room the tents in to make sure it doesn't drop to low. Good luck