Lights out. Humidifier or exhaust fan. Or both

  • Thread starter geralds
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geralds

geralds

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Hey guys I have a quick question about humidity spikes at lights out. I’m running a sealed room and I’ve been having slight pm issues due to high RH at night. I’ve since bought another dehu so I have the correct dehumidification now for my size room. My question is do you guys still run a exhaust fan for a while at lights out then have the dehu come on after the exhaust shuts off? Or Run one or the other, or both?
Thanks
 
oldskol4evr

oldskol4evr

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i run my exhaust and intake fan and filter 24/7,my clip on fan inside only with lights on,i dont have a controled room either,far as that goes no ac or heat just forced wind
 
Dirtbag

Dirtbag

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I run both but I keep my exhaust fan on a temp controller so it only it turns on when the room gets too warm. Which happens about once every 20-30min in the dark cycle with the dehu running. Without some form of temp control the dehu will heat the room up quite a bit. Completely sealed rooms usually use a mini split or commercial AC to counteract the heat from the dehu. But I know some sealed growers who still prefer to vent at night, and only seal up for the day when they're running Co2. But always dehu in the dark.
 
geralds

geralds

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thanks guys I've found that the humidity stays where I want it without the exhaust fan on. Ive just been leaving it off and having the dehus do the work
 
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