With running the fan by temps, don't you need to control the humidity separately?
I know the answer is yes, but if you use the most basic set up, you control the temp and humidity by fan speed with humidifier at a set rate and lung room in a general temp range.
What I'm getting at is, if I went to a temp controlled exhaust, I'd need to change both of the humidifiers in both of my tents. One is a simple ultrasonic with three rates and the other has 9 rate settings and can be self controlled, but it's not accurate enough to control it well enough. Neither can operate with an off and on controller.
I have my grow room pretty much dialed-in to keep tents pretty stable with temp controlling the lung room, humidifiers at a set rate and variable fan set at a rate that controls the tent temps.
If I were to change my exhaust fan, I think I'd want one that has both features, speed and temp control. I think it would be a bit more stable. Sure, you could set the speed too low and it would never shut off, but you could also set it at a too low temp to never have it shut off.
