• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

Run fan 24 hours?

bucks

Active Member
Is it a good idea to run the fan 24 hours, even when the lights are off? Also, should there be any difference in fan use between the veg and flower cycles? Or just 24 hours all the time? Thanks for any help!
 

JeffersonBud

Active Member
By fan you mean a wall fan or one that is meant to circulate air within the room right? If it oscillates or is blowing lightly across the tops then leave it on for 24 hours. I have always left mine on all day and night and have no wind burn or mold.
 

bucks

Active Member
Oops sorry, yeah I have 2 inline fans that push/suck air out of the room as well as a small desktop fan that blows air across the tops of the plants. Should I just keep all of those fans on, or one or the other?
 

JeffersonBud

Active Member
As long as the room stays at the right temp then you can shut the intake and exhaust fans off at night. I would keep the one in the room on though. This will reduce your chance of mold. As long as your fan isn't causing the leaves to dry out and burn then its okay.
 

sensisensai

Well-Known Member
24hrs unless ur using c02 imo. Helps keep the humidity down. In veg u can get away with it as the extra moisture is less likely to cause a problem but in flower I go full speed all day
 

mygirls

Medical Marijuana (MOD)
all my fans go off wwne the lights go out.. you want to try to keep your room warm when lights are out. temps below 5o degrees f really slow the plant growth down alot
 

genisis

Well-Known Member
I always keep my circulating fans on, but intake/outlet are timed to start just before lights on and just after lights off. Concerning co2 - my lines are actually fed into the back of a oscillating fan to disperse co2 over all the plants with a smaller fan circulating air under the plants.
Nice to see other OR growers here.
 

mygirls

Medical Marijuana (MOD)
I always keep my circulating fans on, but intake/outlet are timed to start just before lights on and just after lights off. Concerning co2 - my lines are actually fed into the back of a oscillating fan to disperse co2 over all the plants with a smaller fan circulating air under the plants.
Nice to see other OR growers here.
use oregon growers should get together some time.. maybe meet up at the dunes for a day of riding and smoking...
 
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