80F and 65% humidity - dehumidifiers

whitewidow2

whitewidow2

Well-Known Member
This is what i am getting with lights on...

I tried a dehumidifier but it just put the temps right up

do all dehumidifiers blow out warm air... the one i had managed to get humidity to 45-50% in a grow tent with no lights on

are there certain models that put out less heat than others?

Im just worried about mould as i have heard that i should be aiming for 40 to 50% with 60 as a max during flower
 
Lil Czr

Lil Czr

Well-Known Member
What are your temps like.

That range in humidity shouldn't really be a problem if your temps are under control.

If you're running high humidity and temps in the 90' then you might have to do something.
 
whitewidow2

whitewidow2

Well-Known Member
are dehuimidifers not necessary then?... like i say i did try one out in an empty grow tent and it took temps to 85F
 
S

snocat

Active Member
I am haveing the same problem with my dehumidifyer,I have a home made tent in the basement,I dont run mine in the tent its only 5'w x7'l x8'h but it does raise my temps,I have an inline duct fan that I ran to a window to bring in cooler air,my lights are on at night so when its cooler outside than it is in the tent I turn it on,so far this year has been a hot 1.my temps were around 85 now I can get it to 70s with 45%. I dont think there are any out there that dont push out warm air. good luck
 
W

weedsmoka

Active Member
i have this problem, i have seedlings and i can never keep the humidity up atall. it keeps falling down straight away, i spray mist into the air, and i have a big jug of water on the floor
my temp is 82 and at times my humidity can go as low as 30 percent,

anyone have any tips to make my humidity more stable? perhaps i need a humidifier as i am only using my room for mother plants???
 
napa23

napa23

Well-Known Member
weedsmoka said:
i have this problem, i have seedlings and i can never keep the humidity up atall. it keeps falling down straight away, i spray mist into the air, and i have a big jug of water on the floor
my temp is 82 and at times my humidity can go as low as 30 percent,

anyone have any tips to make my humidity more stable? perhaps i need a humidifier as i am only using my room for mother plants???
Click to expand...
Cover them with the bottom of 2 liters so the water vapor doesn't escape.
 
homebrewer

homebrewer

Well-Known Member
A grow room with over 50% humidity runs the risk of bud mold. Grow rooms with stagnant, cooler air at high humidity levels also run the risk of mold. Dehumidifiers will kick out warm, dry air but it shouldn't be hot. Hot air is a sign that you've purchased a bad unit/model/brand. That being said, some strains mold easier than others so if you're running high humidity with no issues, then you may be ok as long as you've got good airflow and your night temps aren't too cool. Personally, regardless of strain, I wouldn't feel comfortable with my humidity over 65%.
 
napa23

napa23

Well-Known Member
My temps never really go over 84F and I have an oscillating fan in the closet. Should I be worried about mold. RH around 45-55%
 
O

ogkushkilla

Member
weedsmoka said:
i have this problem, i have seedlings and i can never keep the humidity up atall. it keeps falling down straight away, i spray mist into the air, and i have a big jug of water on the floor
my temp is 82 and at times my humidity can go as low as 30 percent,

anyone have any tips to make my humidity more stable? perhaps i need a humidifier as i am only using my room for mother plants???
Click to expand...
you should be fine with humidity like that when you have seed lings, once you have more mature plants in your room the humidity level will rise on its own, if the seedlings show a serious amount of slowed growth and stress then put a humidity dome over top of them and spray it a few times a day
 
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