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

Turn exhaust fan & oscilating fan off at night?

cannabis culture

cannabis culture

Well-Known Member
Should I leave my ventilation fan(outtake fan) on at night? I of course leave it on during lights on.
If I leave on the entire dark period will I see a big drop in my temps now that it's getting cooler outside?
If I leave the outtake fan on at night will it be ok to leave my oscilating fan off at night? Or would it matter?

What do you guys do? Or suggest?

Btw I just switched to .12/12 and till now I just ran them periodically at night whitch was on a few hours. But since I switched to 12/12 I'm seeing a rise in RH at night, that's why I'm concerned
 
bird dog

bird dog

Well-Known Member
cannabis culture said:
Should I leave my ventilation fan(outtake fan) on at night? I of course leave it on during lights on.
If I leave on the entire dark period will I see a big drop in my temps now that it's getting cooler outside?
If I leave the outtake fan on at night will it be ok to leave my oscilating fan off at night? Or would it matter?

What do you guys do? Or suggest?

Btw I just switched to .12/12 and till now I just ran them periodically at night whitch was on a few hours. But since I switched to 12/12 I'm seeing a rise in RH at night, that's why I'm concerned
Click to expand...
Dude...never turn you fans off if you can help it...even if it's cold. If they are inside, add a small portable electric heater. Good luck! Peace

churchhaze: Could you make me smarter and explain your last sentence pertaining to CO2 and O2? Lot's of members here go out of their way to give their plants CO2. Respect!
 
cannabis culture

cannabis culture

Well-Known Member
Mobileaudio25 said:
Yep definitely On at all times
Click to expand...
Is it just as important for the oscilating fan to be on 24/7 as well? I always figured that the plants liked a break from the oscilating fan sometimes. Is this true?

Do you guys keep your oscilating fan on 24/7 in conjunction with the ventilation fan(s)
 
chuck estevez

chuck estevez

Well-Known Member
bird dog said:
Dude...never turn you fans off if you can help it...even if it's cold. If they are inside, add a small portable electric heater. Good luck! Peace

churchhaze: Could you make me smarter and explain your last sentence pertaining to CO2 and O2? Lot's of members here go out of their way to give their plants CO2. Respect!
Click to expand...
give c02 in a sealed environment with lights ON. during day,plants take in c02 and give off Oxygen. At night,it is opposite
.
 
cannabis culture

cannabis culture

Well-Known Member
I do keep the oscilating fan moving, hence "oscilating". I have it moving across the tops of the crop between the light.
Should I run it 24/7? Or am
I at risk for wind burn alway leaving on
 
cannabis culture

cannabis culture

Well-Known Member
chuck estevez said:
you're good the way you got it. leave it on always
Click to expand...
Thank for the help chuck. Yea I'll just leave all fans on 24/7 up until now I've alway had the fans in a timer and at night ran the fans in 10 min intervals at the top of each hour.

Also worse case senerio; what are the symptoms of wind burn? What should I look for just in case?
 
J

jayboss1

Well-Known Member
my room is out side in a shed ,when mine are on 12/12 I cut everything off at night /lights out apart from ( dehumidifier ) .

so im on 6 am on --6pm off .........12/12
I time my incoming air go off about 7pm
also my osculating fan same time ish .

I leave my extractor /carbon filter fan on for longer till 9pm . everyone's indoors watching the soaps .all quite lol ,no one sniffing about then .

but I leave my dehumidifier on continuous 24-7 .
 
BigRedKev

BigRedKev

Active Member
jayboss1 said:
my room is out side in a shed ,when mine are on 12/12 I cut everything off at night /lights out apart from ( dehumidifier ) .

so im on 6 am on --6pm off .........12/12
I time my incoming air go off about 7pm
also my osculating fan same time ish .

I leave my extractor /carbon filter fan on for longer till 9pm . everyone's indoors watching the soaps .all quite lol ,no one sniffing about then .

but I leave my dehumidifier on continuous 24-7 .
Click to expand...

so im curious why you do this, is it because of temps? also im not sure but wouldn't you want an intake running at all times to get fresh o2 into the room since plants no longer absorb c02 at night and rather give it off while absorbing o2? because if your not running an exhaust or intake the air is stagnant and used up especially since you have no osc fans on which is also silly, those should run 24/7. all my fans except my 8 inch hurricane fan to cool my 2 1k hps lights which turns off when they do are running 24/7. good air exchange IMO is critical 24 hours a day even if temps are low, Invest in a space heater, they work very nicely and alos along with heating the air it lowers RH for your bloom.
 
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