Humidity over 80, lights out.

Trich-o-matic · Jan 30, 2019

WeedFreak78 said:
What kinda heat is the dehumidifier adding during lights out? Mine will raise my 4x8 drying closet 5-10F in a couple hours, even with constant ventilation. I run it on a temp controlled switch so it doesn't overheat the room and cook off terpenes.

And why are you letting your tent get up to 80 before venting? I'd bet the 12F +/- differential swing, coupled with rapid cooling when vents turn on, is gonna stress your plants. Plus, you'll lose terpenes in late flower being that warm.

I'm only on day 2 with dehumidifier. Week 5 of flower. Right now im at 11 hours lights off with dehumidifier on setting #2 of 10. I'm holding around 76°F and 35-40% RH.

Without the dehimidifier, it was getting cold at around 60°F with lights out, sometimes lower.

What do you recommend for temp differential? As I've already admitted in my previous post, i know that temp is a touch high for the mid flower stage. I'm planning to knock the temp max limit down to 77°F.

WeedFreak78 · Jan 30, 2019

Every situation is different. Right now I'm in soil and I try to keep my tents 72-75F days and 60-65F nights. Once it gets close to 80 they don't like it and noticeably slow, but when I ran hydro I could run into the low 80s and they just kept exploding.

Beachwalker · Jan 30, 2019

Trich-o-matic said:
I use a 5x5 tent and my floor space is pretty limited. The dehumidifier is working fine so far. But it still takes up the space of a plant. Does the oil heater dry out your soil or heat the roots up? I also use fabric pots. So, Im trying to avoid adding heat to reduce RH. Oil heater might actually take up even more space, if the plants cant touch it.

A heater will also help your plants grow & ripen faster because cold roots slow growth

10 degrees is a good temperature differential, good luck

pollen205 · Feb 15, 2019

Can I please ask for help in hummidity..
I just flip and have 80 % night and 60-65 % day
I will buy dehumidifier in 2 weeks..dont have budget till then
I have really good ventilation in tent...extractor Fan and clip Fan that blow direct on Plant.
So is powdery mildew danger for me now with that RH ??
Still dont see white hair so I cant get boytritis or bud root??...Is this right??

Trich-o-matic · Feb 15, 2019

pollen205 said:
Can I please ask for help in hummidity..
I just flip and have 80 % night and 60-65 % day
I will buy dehumidifier in 2 weeks..dont have budget till then
I have really good ventilation in tent...extractor Fan and clip Fan that blow direct on Plant.
So is powdery mildew danger for me now with that RH ??
Still dont see white hair so I cant get boytritis or bud root??...Is this right??

You should be ok if you just flipped and are at 80% RH. Just make sure to maintain RH when you can. Id recommend looking into an inkbird humidity controller to help keep it more consistent

Humidity over 80, lights out.

Trich-o-matic

Active Member

WeedFreak78

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Beachwalker

Well-Known Member

pollen205

Well-Known Member

Trich-o-matic

Active Member

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