hey buddy, I can't speak for
@TaNg on how he keep his environment but for me I use a lot of automation, positions of fans, tube heaters and collecting data from my hygrometers... my extractor fan is on a speed control and set to a set temp, if it rises above that the fan kicks in faster to to remove the hot air. My heaters are on thermostat's even in the summer to keep a 3-5 degree difference in lights on and light off. I also do my best in controlling the intake air going into the tents with dehumidifier and air con if needed... I am know to over the top with things and some things I do may not be necessary but it keeps my mind at ease.
I bet Tang don't go to town like I do... He has the force, just throws it in a tent and it grows.