dude you so need 3 Asians with cardboard squares waving the shit around
To add; You said 'workshop', not sure if thats code for growroom but if it is indeed a workshop, I would guess you wont have carbon filters hooked to those output fans. This will really help create a a better 'vacum' effect, then if you were to put filters on them. If you are in fact going to use a filter then a intake fan might be needed.
There is a formula you can use to better know what to shoot for. I assume thats what you're using. Stick to that, or like I said; go overboard
yeah it’s for a grow. It’s not like maxed out or anything, but I would like to max it eventually. Right now it’s an open space for flowering.
does that sound right as far as my cfm goes for air circulation? The more I read, the more I’m getting confused. Yeah once I get more money coming in, I’ll prob build 2 rooms that like 10x10x8 or something like that. I would like to eventually dabble with some co2
Wish I knew more cfm tech, no need to get into that with my lil 4x8x8.
Sounds like you need to worry about yourself and your environment and not others on the internets
You had it right on the first post 13,125 cfm is what you want to change the air once every minute that is recommended for green houses. http://www.littlegreenhouse.com/fan-calc.shtml
Is 13,125 cfm the MINIMUM? I thought I read somewhere that you want it exchanged 2-3 times a minute. Does that sound right?
Do you have any suggestions at places I could look? Or brands you might recommend?
One to two changes a minute is what that calculator says. But yeah that number is the minimum. That should be fine for a room 2 changes a minute would be more for a greenhouse in full sun during the hottest part of the day.
Holy shit man. I’m looking up these exhaust fans... phew. I’m gonna need a few big ones.
What kind of lights are you going to use. Quality LED give off quite a bit less heat then HPS lights so you could get by with a bit less CFM. If you are not filling the entire room full of plants you can also get by with less CFM. Thats quite a bit of space you going to fill it up? If so I wouldn't skimp too much on the CFM rating. That many plants in the middle of flower will fill that room up with humidity very fast so high CFMs help keep it down so you dont get any mold or mildew. But a small area like a 5x5 won't affect all the rooms air so you wouldn't need 12000 CFM. 240CFM would do a 5x5 tent. Those fans are 20 bucks. Fans i am using for my greenhouse are for cars 12 volts do 2000 cfm a minute 14 inches wide. 6 of those would put out 12000 cfm and costs about 90 bucks for 6 of them 3 PWM controllers would be 45 dollars I plan on using solar for mine but you can get 12 volt 200 watt PSU's for about 27 a peice so another 80 dollars. So you could DIY it if you had space for six 14 inch fans for about 250 -300 dollars. Bad is no odor control not sure if you want the neighborhood smelling or not.
