Dehumidifier

Josh33

Active Member
70% RH at 85F for LED grows is optimal. Gotta keep that RH consistent, however.

HID grows prefer cooler temps, just below 80F, RH around 65%.

I realize those RH numbers are a lot higher than the conventional wisdom but they're backed up by botanical science and agronomy.
Alrighty and then do you make the decreases in temp and humidity in the last 2 weeks or so of flower time?
 

ttystikk

Well-Known Member
Alrighty and then do you make the decreases in temp and humidity in the last 2 weeks or so of flower time?
Yes, although I've never found it necessary nor have I ever noticed that doing such things improved the final result.
 

Ogchieff

Member
Yes, although I've never found it necessary nor have I ever noticed that doing such things improved the final result.
Would you consider temps 77F RH 60-65% at night with good airflow a problem During flower? I’m running a 3x3 and debating if I should get a cheap dehumidifier to run at night
 

getogrow

Well-Known Member
Would you consider temps 77F RH 60-65% at night with good airflow a problem During flower? I’m running a 3x3 and debating if I should get a cheap dehumidifier to run at night
With good airflow , you are fine. Its certainly not worth going an buying a dehum just for 65% at night. sounds great to me.
 

getogrow

Well-Known Member
Depends on the strain, a very dense indica hybrid could be a problem.
IF you let it. If its stuffed in the corner where RH is 80 or 90 at night then yes , it will happen. but if its 65% in the wettest spot in the room With plenty of airflow then it wont happen. RIU does a damn good job at keeping us all super aware of mold issues.
 

Halfbakednerd

New Member
Anyone know anything about this dehu brand?


I am looking for something quiet that will keep humidity low. I see the Pro Breeze being recommended too, think i will take a look at that as well.
 

ilovetoskiatalta

Well-Known Member
Anyone know anything about this dehu brand?


I am looking for something quiet that will keep humidity low. I see the Pro Breeze being recommended too, think i will take a look at that as well.
you should calculate how many pints per day you need to remove.
 
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