oscillating fan 27/7 when flowering?

concrete351

Well-Known Member

• Oct 7, 2020

• #1

Do you run your fans all night

 

R

Raquinotj

Active Member

• Oct 7, 2020

• #2

I keep my oscillating fans 24/7, as indoor growers we do things to minic nature or improve on it and in nature there is always wind, therefore I run my oscillating fans 24/7, also for small spaces it helps cut down on any mold issues and keeps airflow moving..

 

vitalsine

Well-Known Member

• Oct 7, 2020

• #3

Keep that air movin. Above and below the canopy if you can. I run 4 8" oscillating fans in my 5'x5' as well as an 8-inch exhaust. Lots of airflow is good, screw mold!

 

GrassBurner

Well-Known Member

• Oct 7, 2020

• #4

I run my exhaust fan 1 hour before and after lights on, the whole time lights are on, and it comes on for an hour twice during lights out. Ive got a 20" box fan in the ceiling blowing down, and a small tower fan horizontally blowing from through the canopy, and they are on 24/7.

 

vitalsine

Well-Known Member

• Oct 7, 2020

• #5

GrassBurner said:

I run my exhaust fan 1 hour before and after lights on, the whole time lights are on, and it comes on for an hour twice during lights out. Ive got a 20" box fan in the ceiling blowing down, and a small tower fan horizontally blowing from through the canopy, and they are on 24/7.

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Ultimately as long as your humidity is in check you should be fine. I run all fans 24/7, including the exhaust.

 

Rezin

Well-Known Member

• Oct 7, 2020

• #6

I run all fans 24/7 .... they also last longer. If they are constantly on and off eventually they burn out. I had an exhaust fan on for 7 years straight. Turned it off when I moved. now it’s my back up.

 

HydroKid239

Well-Known Member

• Oct 7, 2020

• #7

Keep em on and moving.

 

KootenayDIY

Well-Known Member

• Oct 8, 2020

• #8

Constantly running all fans and exhaust. I need positive pressure to keep the smell from destroying my relationship lol. No issues other than low humidity

 

S

Stoned Whale

Active Member

• Oct 8, 2020

• #9

100% keep them on all the time.

Reduces cold / hot spots and massively helps with preventing bud rot even in high humidity situations.

Humidity typically has a little bit of a peak just after lights off!

 

StareCase

Well-Known Member

• Oct 8, 2020

• #10

vitalsine said:

... screw mold! ...

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The motto of all indoor growers.

 

concrete351

Well-Known Member

• Oct 8, 2020

• #11

thanks all, ill keep them on 24/7

 

osowhom

Well-Known Member

• Oct 8, 2020

• #12

i have 4 fans i turn off 2 at night

 

T

Thcmbuna

Member

• Oct 9, 2020

• #13

Everything is on one timer for me. Only on for light cycle.

 

StareCase

Well-Known Member

• Oct 9, 2020

• #14

Thcmbuna said:

... Everything is on one timer for me. Only on for light cycle ...

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So your fans are not running during their dark period?

 

T

Thcmbuna

Member

• Oct 9, 2020

• #15

StareCase said:

So your fans are not running during their dark period?

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Nope

 

Moldy

Well-Known Member

• Oct 9, 2020

• #16

I don't have humidity (20% RH) but run fans 24/7 for PM and/or spider mites. Also for heat stress keeping the canopy cool.

 

StareCase

Well-Known Member

• Oct 9, 2020

• #17

Thcmbuna said:

... Nope ...

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Yeah ... I tried that with my first indoor crop too.

They looked fine until that one morning when they didn't. Tons of dreaded grey mold everywhere - and 14 weeks down the crapper.

Like Moldy recommends - run them circulation and exhaust fans 24/7.