Vent with CO2 enrichment?

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Evan879

New Member
Normally I run a completely closed room, but I'm expanding and considering venting outside only for humidity control when the dehumidifiers can't keep up. I use CO2 burners for enrichment.

Thoughts?

How can I keep the bugs out?
Obviously there will be a damper to prevent back flow but that won't keep the bugs out.
I don't think a charcoal filter is a fine enough micron for the bastards.

Can I push air through a HEPA filter just as effectively rather than pull air? https://www.htgsupply.com/products/growbright-hepa/

Am I just better off with larger or more dehumidifiers and keep it sealed?
 
westcoast420

westcoast420

Well-Known Member
You will blow through co2 like crazy. I tried this in my 24'x24' room and it was not worth it at all. And usually its the humidity when lights are off that is the big struggle. My mini splits alone are enough to keep humidity in check during lights on but its different for different rooms.
 
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Evan879

New Member
westcoast420 said:
You will blow through co2 like crazy. I tried this in my 24'x24' room and it was not worth it at all. And usually its the humidity when lights are off that is the big struggle. My mini splits alone are enough to keep humidity in check during lights on but its different for different rooms.
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Agreed. I'm thinking it would run mostly during lights off, rather than producing heat from the dehumidifier. I'll be having two 30000 BTU AC for 12 lights. I do stadium though with a lot of plants, so I was planning for at least a 220 pint dehumid to keep things in check during late flower.
 
westcoast420

westcoast420

Well-Known Member
Dont know where your located but if your venting during lights off and its cool outside, that will plummet your indoor night temps which is a no no. 5 tons should be no problem for 12 lights assuming they are 1k's. I am getting away with 7 tons for 24 lights right now but its around 0c outside so thats why. When temps outside start warming up ive got another 2.5 ton that will help out. Also if your sealed for dark cycle the co2 builds up so when lights come back on you should have to run your co2 for very little or not at all to start the day cycle.
 
ҖҗlegilizeitҗҖ

ҖҗlegilizeitҗҖ

Well-Known Member
westcoast420 said:
Dont know where your located but if your venting during lights off and its cool outside, that will plummet your indoor night temps which is a no no. 5 tons should be no problem for 12 lights assuming they are 1k's. I am getting away with 7 tons for 24 lights right now but its around 0c outside so thats why. When temps outside start warming up ive got another 2.5 ton that will help out. Also if your sealed for dark cycle the co2 builds up so when lights come back on you should have to run your co2 for very little or not at all to start the day cycle.
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My co2 controller monitors the air and turns off when there is no lights (it has a photosensor) i feel like a lof of people with good CO2 systems use something like this rather than a timer release causing it to "build up" over night
 
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