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sweetestsin420
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im thinkn a 6in fan with one 6in intake will cool one 400w lite, depnnding on the temp of the air you are intaking, ifpulling 80 air in maybe not, if pullin nice cool winter air in you could prolly cool plenty with it. sorry to state the obvious there.
when you speak of 80 temps, thats in your room w your plants, correct?
how cool of air can you get to those passive inakes?
when you speak of 80 temps, thats in your room w your plants, correct?
how cool of air can you get to those passive inakes?
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sweetestsin420
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sweetestsin420
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sucks not to have cool air to cool the room altho its nice n tropical for everythng else
if you are really really against ac, id say go 8in exhaust fan and if that dont work, which it may not, duct your lights maybe vent hot air directly off of them thru a separate exhaust, needing another fan, in the long run still prolly cheaper than running an AC, 6 inch venting hoods, and 6inch exhaust maybe
if you are really really against ac, id say go 8in exhaust fan and if that dont work, which it may not, duct your lights maybe vent hot air directly off of them thru a separate exhaust, needing another fan, in the long run still prolly cheaper than running an AC, 6 inch venting hoods, and 6inch exhaust maybe
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sweetestsin420
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Active exhaust is more important than active intake. If you only have one fan, you need it on the exhaust. Open up some passive intake to the tune of about double what your exhaust is. So if you have a single 6" exhaust fan, you should have at least two 6" PASSIVE intakes.
Those 2L soda bottle co2 generators are fun to play around with. I wouldn't run a sealed room with them though.
Concentrate on keeping your daylight/night temps within about 10 degrees. (Example: lights on 85F, lights off 75-85F.)
Try to exhaust your space twice a minute (factor in carbon reducing the efficiency of your exhaust by 30%). Factor cubic footage of your room by multiplying L x W x H = cubic footage. CFM is cubic feet per minute. A 440 CFM fan will lose about 30% of its rated power with a carbon filter attached. So your 440 CFM fan will only handle about 308 CFM with filter attached. So your fan will be good as long as your room is around 154 cubic feet.
(7'x2'x6'= 84 cubic feet. So your fan, with carbon filter attached, should be capable of completely exchanging the air in your room 3.6 times per minute. That should help keep your temps close to ambient.)
If your temps are 80F without any lights on, you may need to run A/C to bring temps down in the room. 85F is just about perfect for cannabis. Below 70 or above 90F will start to slow your growth.
Keep asking questions and reading threads.
Those 2L soda bottle co2 generators are fun to play around with. I wouldn't run a sealed room with them though.
Concentrate on keeping your daylight/night temps within about 10 degrees. (Example: lights on 85F, lights off 75-85F.)
Try to exhaust your space twice a minute (factor in carbon reducing the efficiency of your exhaust by 30%). Factor cubic footage of your room by multiplying L x W x H = cubic footage. CFM is cubic feet per minute. A 440 CFM fan will lose about 30% of its rated power with a carbon filter attached. So your 440 CFM fan will only handle about 308 CFM with filter attached. So your fan will be good as long as your room is around 154 cubic feet.
(7'x2'x6'= 84 cubic feet. So your fan, with carbon filter attached, should be capable of completely exchanging the air in your room 3.6 times per minute. That should help keep your temps close to ambient.)
If your temps are 80F without any lights on, you may need to run A/C to bring temps down in the room. 85F is just about perfect for cannabis. Below 70 or above 90F will start to slow your growth.
Keep asking questions and reading threads.
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DHF
Ran all my rooms in the mid 80`s lights on , and mid 70`s lights off with air exchange twice per minute , and never used CO2 supplements cuz it was always inherent in the air we breathe bein pulled into and sucked outta each grow area......but......
I also used "active" intakes with the exhaust/scrubber combo`s , as well as a/c`s and dehueys on standby for total environmental control...and....As Anti specified above......
Keep readin and askin questions...........
Good luck.....DHF.....
.......
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sweetestsin420
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anti you say 85 is good to go? so lets say my temps in my ambient room are 82..using passive intakes,how many degress will it rise in my closet? around 85f?
also,in this diagram,can i use my exhaust like that,above my closet is another little cubboard,with its own seperate doors,then above that is the attic/ceiling
like that,can i run my exhaust like the one in the diagram?without venting into the ceiling,can i just vent into the filter,and into the cupboard above my closet?with the doors closed?why or why not?you seem very smart,id rather not cut a hole into my ceiling,and also im too cheap to buy aluminum ducting lol
Ok. Yes, 85 degrees is good, but I would try my best to keep that as my MAX temp.
Can't say for certain, but if the closet air is being constantly replenished 3x per minute, it will definitely help keep your temps closer to ambient.
It would be better to have your carbon filter inside the closet and BEFORE your fan. Fans are more efficient at PULLING air rather than PUSHING air. (In your drawing, you are pushing air.) Pulling air will make your carbon scrubber more effective and it will last longer, too.
Venting it up into that little cupboard is fine, but I would keep the cupboard open a crack when people aren't around so that the heat has somewhere to go. Keep in mind that if you are exhausting the heat from your closet into the room the closet is in, you may raise the ambient temps within the room, which will also raise temps in the closet. If you can safely cut a hole into the attic, that would eliminate this problem.
If you already have a window A/C unit in the room, you could cool the room the closet is in. If you keep that room cooled with the A/C, venting back into the same room won't be as much of a problem.
and dhf,same questions to you,you also seem like a pro,what do you think?thank you guys
DHF is one of the proiest pros on this website. Listen to everything he tells you. Even if it disagrees with something *I* tell you.
IM not a pro or anything , but .....
IM not a pro or anything , but .....
I remember drawing these up for u , guess u didnt see em , or u may have better plan ?..... thought u were a latino, not a Jew , spring for some duct,... its only like 20 bux for like 25' , gotta pay to play sometimes, sweet E
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IM not a pro or anything , but .....
I remember drawing these up for u , guess u didnt see em , or u may have better plan ?..... thought u were a latino, not a Jew , spring for some duct,... its only like 20 bux for like 25' , gotta pay to play sometimes, sweet E
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sweetestsin420
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DOnt worry SweetE Iam a jew so I can say these things , but seriously a old trash bag ,
WOW do u need a MAN in your life ,(to build u a room at least),... cutting an AC window banger into your closet seems like much work to me, ,.... if you have a filter and a fan, u can buy, a cruise temp. which will only run your exhaust when temps get higher than 82ish,..or hook up a cheap digital timer to go off once every 5-15 min,... Dont pinch your peso's too much hooking up goofy shit like trash-bags as exhaust is a fire hazard,.... If I was in your position I would ask a handy familia member for help ,
PS. I would come over and help out, but you would have to make me some proper latino comida,...hahah. good luck SweetE
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WOW do u need a MAN in your life ,(to build u a room at least),... cutting an AC window banger into your closet seems like much work to me, ,.... if you have a filter and a fan, u can buy, a cruise temp. which will only run your exhaust when temps get higher than 82ish,..or hook up a cheap digital timer to go off once every 5-15 min,... Dont pinch your peso's too much hooking up goofy shit like trash-bags as exhaust is a fire hazard,.... If I was in your position I would ask a handy familia member for help ,
PS. I would come over and help out, but you would have to make me some proper latino comida,...hahah. good luck SweetE
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You are showing some fundamental lack of understanding.
You want your fan exhausting. You want to leave it on pretty much all the time. 24/7. If it cools your room "too much" turn your A/C down. You could get a timer on the exhaust that is controlled by temp/humidity. That will run you about $150. Since you don't wanna spend $20 on ducting, I'm guessing you won't be spending money on a fan controller. So you want yours on constantly during lights on.
Spend $20 on some ducting. keeping your environment dialed as close to "ideal" as possible will add grams to your bottom line.
If keeping your room in the proper temperature/humidity range nets you one extra gram from your ducting, you have just paid for your ducting. Don't cheap out and let your plants (and harvest) suffer.
No point in a sealed room if you aren't running CO2. My exhaust fan runs 24/7. By exhausting air out of the room, you create a vaccuum which will be immediately filled by fresh air rushing in through your (passive) intakes. If you only have one fan, repeat after me - ACTIVE EXHAUST, PASSIVE INTAKE.
Your plants will thank you. $20 worth of insulated ducting will give you 25ft of ducting or more. The carbon scrubber hooks directly to your fan. The fan hooks directly to the duct... the duct leaves the grow (preferably through the ceiling.) Where the duct goes from there depends on your situation and your ambient room temp.
If you only need a way to "duct" your fan through the roof of your box, I'm sure there are ways you could do so on the cheap without resorting to plastic bags.
I would put the window a/c in the window of the room the closet is in. If the closet is too hot, turn the A/C down. If the closet is too cold, turn the A/C up. The closet is going to pull its fresh air supply from the room. So cool the main room and your extraction fan will do the rest.
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sweetestsin420
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sweetestsin420
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SeaMaiden
They'll flip on you. Reducing photoperiod, or increasing dark phase like that will cause onset of regenerative (aka flowering) growth.
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sweetestsin420
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18/6 veg ,
flower 12/12
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flower 12/12
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