What i am wondering is how much time to run the exhaust fan, see here we have really bad winters and my grow room is closed off and it stays at decent temps (67F) with the heat from the light, but the temp outside the grow room is ridiculous cold (55F) and lower. Now i tried to run my exaust fan 24,7 since my light is on 24,7 but my temperatures started to fall way too much and humidity drop alot also from 67F, 65%RH to like 60F , 45% RH. now i am looking to buy small heater with ajustable thermostat but i would like to keep the heat in the grow room as much as possible, but i do understand that fresh air is needed but would 5 mins every hour so or something resonable?
How much time to run exhaust fan
- Thread starter Jo162
- Start date
using a 400 watt mh in a 8x4 feet grow room, for flowering i have a 1000watt hps which i believe will help get temp up.
I have noticed slow growth with the clones i started but my mother plant is growing like crazy.
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TintEastwood
Well-Known Member
These are pretty cool...
Inkbird WiFi ITC-308 Digital Temperature Controller Thermostat Remote Monitoring Controlling Home Brewing Fermentation Breeding Incubation Greenhouse
Inkbird WiFi ITC-308 Digital Temperature Controller Thermostat Remote Monitoring Controlling Home Brewing Fermentation Breeding Incubation Greenhouse
Inkbird WiFi ITC-308 Digital Temperature Controller Thermostat Remote Monitoring Controlling Home Brewing Fermentation Breeding Incubation Greenhouse: Amazon.com: Industrial & Scientific
Inkbird WiFi ITC-308 Digital Temperature Controller Thermostat Remote Monitoring Controlling Home Brewing Fermentation Breeding Incubation Greenhouse: Amazon.com: Industrial & Scientific
www.amazon.com
So basically a thermostat that would start my exhaust fan when temps or humidity gets too high? the rest of the time exhaust fan off?
diggs99
Well-Known Member
Yep exactly. They are game changers. Takes the guess work out.
Once you run a controller you will never want to do without it again
TintEastwood
Well-Known Member
That one, you can connect a heater, and your fan.
They have a different unit that does humidity.
For me, my dehuey works best stand-alone, using it's settings.
They have a different unit that does humidity.
For me, my dehuey works best stand-alone, using it's settings.
PURPLEB3RRYKUSH
Well-Known Member
Set your exhaust fan on a timer to turn on every 1 hour for 10 mins on if colds a concern
rob333
Well-Known Member
19c is fine i run mine at 18c light out no issues
rob333
Well-Known Member
one of the biggest issues i have seen with grows is air exchange if u have fuck all air exchange u are gunna have issues hence why u run out take 24/7 so u dont get to much co2 build up