co2 help with exaust fan

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Jonjon5555

Member
bottletoke said:
85? ,60-70? You flower in 70rh your yield will be loaded with bud rot. Design the room so you can maintain 76 and 30%rh this way it won't struggle to cool a temp higher then 81 or lower the humidity to 40-45. I run at 77-78 sometimes higher dependant on strain but that is unusual.
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No actually a high temperature is vital to the use of co2. 85-95 degrees is where you should be at if you are going all the way in 1500 ppm co2. Even without co2 mj loves 80 degrees. Just waisted a bunch of time reading about it and I'm not even going to use it. And on rh, it will be harder to control with co2 I wasn't saying keep your rh at 70 I said below 60-70 30 is way to low. Anytime I'd go that low is last few weeks of flower indoors. Humidity is a big part of growth especially in veg stage 30 percent is dry as hell.
 
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Jonjon5555

Member
a mongo frog said:
Actually thats pretty standard in enriched rooms. 81 degrees and 62% rh with 900 ppms here. You have to have real air flow. Floor fans, wall occilating fans. fans blowing above the lamps into dead space, Not just fans blowing the canopy.
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This is what I was reading thanks for your experience. Any opinions on his grow??
 
a mongo frog

a mongo frog

Well-Known Member
Jonjon5555 said:
This is what I was reading thanks for your experience. Any opinions on his grow??
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Im not against having an exhaust in an enriched room, however I believe the exhaust should have a damper on it and only used for dumping the room via controller or timer. There are controllers that the op can use for his exhaust that you hook to the dehumidify port on controller. that would shut the co2 off while the exhaust dumps the room for lets say maybe 2 minutes or so depending on fan size. But this system need a damper on exhaust to be efficient. Im not sure about blowing fresh air in while enriching a room. IMO that would also require a damper.
 
bottletoke

bottletoke

Well-Known Member
I run 77-78(during flower) on the stat because the difference in temp under the lights is 5 deg exact. I run 1500ppm and dependant on strain down to 45-50%rh during flower. Veg im up to 81(86) and 60-65%rh. Evrry time my rh% is changed or temp is increased some kind of problem happens, my system is balanced, dialed and efficient and I am extremely happy with it. Besides the cost of exchanging the open air vert hps's to gavitas and lec's...stul happy lol. You have to pay to play.
 
bottletoke

bottletoke

Well-Known Member
Jonjon5555 said:
. Humidity is a big part of growth especially in veg stage 30 percent is dry as hell.
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Lol, I didn't say to run it at 30 but set it up so it can. You don't want a dehumidifier running at capacity all the time or it'll be spitting out more heat then a small fire. If my room needs 50gph then I'd go with something at least %150, if its affordable then %200.
 
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Jonjon5555

Member
bottletoke said:
Lol, I didn't say to run it at 30 but set it up so it can. You don't want a dehumidifier running at capacity all the time or it'll be spitting out more heat then a small fire. If my room needs 50gph then I'd go with something at least %150, if its affordable then %200.
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Oh I got you I missundestood what kind of lights are you running in your room?
 
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Paul Moore

Member
how do i find one that does i see everyone just using a portable A/C vented out side is that not outside air and putting it indoors in return not sucking my co2
 
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Paul Moore

Member
im in canada , Bowmanville ontario to be exact so that dehumidiys and cools the room at the same time no need to vent outside
 
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Jonjon5555

Member
They basically use water to cool the air there's other types that do the same process I believe but yeah no venting out the wall.
 
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Jonjon5555

Member
I don't know that they dehumidify you might even look on this site for something about ac'S with co2. I believe you have to refill the water chamber yes so you could put ice.
 
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Paul Moore

Member
ok so ill get the evaporative air cooler and keep my room humidity around 40 percent as everything is flowering right now and in my nursery ill keep it at 65 percent as seemed to work and then just to go over my set up for any other advice i have 3 - 600w HPs and one 400 watt MH which i keep mounted high just as an added lumen. i run those 12/12 obv due to flower my nursery is 24hr, T5s's unless i throw in auto flower dewarfs i use to add to my crops, when the lights r on i run my co2 every hour for 10 mins on a low psi to try to keep it between 12-1300 ppm and no exhaust is in im using Pro-Mix HP as well as worm casting soil mixed as a medium and pure blend tea as a added fertilizer. i feed 2 times a week add plain water threw out if needed. lights off at 7 for 12 hours i exaust at 3am for 2 hours to change out my air and keep the scent down my first baby came down it dried really quick like 4 days and the smell is very earthy it was a auto jack herur. the buds came really lose and light amost see threw gets me a buzz but i didnt have a 60x digi microscope and now i notice his sisters triclomes arent quite as foggy as they needed so i think thats why the buds are how they are could there be another reason again any tips or advice would be great thanks guys also im in bowmanville ontario anyone form this area at all
 
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