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

help with heat and humidity problems in my box.

normajean123

Active Member
ok my box is 2 ft x 1 1/2ft and 4ft high. is closed off and the walls have mylar.at the top i have a small 4" exhaust that pulls 80 cfm. i have a 4 in circular hole at the bottom for passive intake.

temps get to 81 and barely drop at night.
humidity is 50%

i just opened the door and have a 10" oscilating fan there and a small fan at the closet door to help bring air into the closet. temps got to 78 and humidity is 40%

i dont want to leave the door open the entire time though. what would be the best way of keeping the temp at a good spot and humidity for optimal grow? im gonna get a small intake fan and a small oscilating fan. would that be enough? especially since temps need to drop 15 degrees from what ive read
 

dyzel

Well-Known Member
I found what works on my box, instead of having one big fan, get 3 little ones!
Try get your mitts on 3 5 watt PC fans (60mm) and place them separately.
one to the extreme left, one in the center and one to the right. The larger area covered by the more fans cools down the unit faster.

Also, you may want to add a small oscillatory fan into the box. The breeze cools things down, and is good for your girls:)

Keep the doors closed, and keep a shallow, wide mouthed bowl of water (1/4inch deep) At the bottom of your grow. The heat and air movement are substantial to use the small amount of water to humidify a room slightly.

It should remain in at around the 45 - 55% range.\\Good luck man!
 

normajean123

Active Member
interesting, thanks man. i was trying to do that but the only thing is i dont know how to make them work without a comp since they need that 4 pin plug shit.
 

Laxstar13

Member
U need to splice the pc fan with a adapte of the save voltage and ither dc or ac current depending on the fans u buy. these adapters can come from anything like cell charge or toy charger ect.. just make sure its dc if the fans dc and keep voltage the same
 

dyzel

Well-Known Member
yea dude. buy any 60 - 80mm 5 volt PC fans, and use a cellphone charger. Snip the end, and match up wire colours to the fan and your good to go.

Connect multiple fans in parallel NOT series, and this will distribute 5 V to each fan for optimal efficiency.
 
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