Humidifier in tent while drying

pizzax1

pizzax1

Active Member
Hi all,
For this harvest, I would like to slow down the drying time. Temps in my tent won't go lower than 66f but I have a dehumidifier and humidifier in there to keep at a steady 60% RH. I didn't do branches this time either but whole plant, albeit trimmed a bit.. I guess I'm just a bit paranoid about having the humidifier in the tent room and getting mold. I have it set at the lowest setting and have it pointed far from the buds. Just wondering if this is a terrible idea and I should move it outside even though it doesn't work as well to keep it at 60%. Generally the outside is 45-50%RH

Thanks in advance.
 
pizzax1

pizzax1

Active Member
Yeah it is, but the dehumidifier hasn’t gone on once in the two days it’s been drying. So not worried about that. I do think I have to move once I start another grow cause it pushes temps up to 84f when lights on.
 
Wastei

Wastei

Well-Known Member
pizzax1 said:
Hi all,
For this harvest, I would like to slow down the drying time. Temps in my tent won't go lower than 66f but I have a dehumidifier and humidifier in there to keep at a steady 60% RH. I didn't do branches this time either but whole plant, albeit trimmed a bit.. I guess I'm just a bit paranoid about having the humidifier in the tent room and getting mold. I have it set at the lowest setting and have it pointed far from the buds. Just wondering if this is a terrible idea and I should move it outside even though it doesn't work as well to keep it at 60%. Generally the outside is 45-50%RH

Thanks in advance.
Click to expand...
Why would you use and need a humidifier and dehumidifier in a dry room? Sounds like a good recipe for mold like you mentioned. Dim the exhaust fan down to keep desired RH instead of adding moisture. You want to dry slower but use a dehumidifier in the dry room?, that doesn't make much sense in my book.
 
pizzax1

pizzax1

Active Member
It’s to keep the humidity stable at 60%. If I don’t have humidity control in the tent it drops to 40%. The exhaust fan only drags in from the lung room which is sitting at that, 40-50%.
 
Wastei

Wastei

Well-Known Member
pizzax1 said:
It’s to keep the humidity stable at 60%. If I don’t have humidity control in the tent it drops to 40%. The exhaust fan only drags in from the lung room which is sitting at that, 40-50%.
Click to expand...
Make it exhaust and dim it down. I don't know how much material you have but I have never used a dehumidifier and would never use it in a dry room. Buy a smaller exhaust fan with dimmer and/or hygrostat if you're in to numbers.

My ambient hardly never goes above 35% RH so I think you're doing more work for less gain at the moment. I start at 75% RH and let it lower to 55% by the drying process.
 
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C

ComfortCreator

Well-Known Member
I asked this before my first dry and got yelled at lol. Answer is NO, and do what Watsei says, modulate exhaust speed to maintain RH target. If you cannot, maybe an inkbird or other controller would help.

You are controlling the release of moisture out. If you balance both sides such as a humidifier and dehumidifier with some play between them, you have built a curing room which will work just fine once it is dry and stabile. For this you need triggered devices so they only kick on when needed.

That would be after drying. During dry...no humidifier. Less airflow.
 
GreenestBasterd

GreenestBasterd

Well-Known Member
I have to dry in a semi insulated shed in Australia, very hot!
Each year one of my indoor crops finishes as it’s getting very hot outside.
I’ve found the best way to slow down the drying is to have the exhaust fan constantly running just above idle and a 50l res with filled with water and an air stone.
I crack the lid open on the res an inch or two which keeps the RH up.
Best of luck
 
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