what cfm fan do i need????

[weednurd420]

I GOT 2 QUISTIONS.... QUSTION(1)my room is 2ft wide 2ft long and 8ft tall so what cfm fan do I need? like to exchange air 3 times in 5 minutes, QUSTION(2) should the fan sucking air out have moor cfm then the fan sucking air in???

 

[daloudpack]

what kind of lighting
hps bigger fan more cfm, cfl smaller fan less cfm

 

[daloudpack]

is this just gonna be for one plant? why the over kill on height its gonna be hard to penetrate thru more then a few feet of folaige

 

[weednurd420]

is this just gonna be for one plant? why the over kill on height its gonna be hard to penetrate thru more then a few feet of folaige

I got 1 200w diamond series led and and 6 40w cfls, I have no control over the height its in my closet and it just happens to be 8 ft tall. I ran 3 aotoflowers all ready did ok but a 200cfm bathroom fan sucking air in and that was over kill I guess. it burnt up and want to know the best cfm fan to get this time around, the cfls get kind of hot. I will be growing 1 white widow toped 3 times then flowered.........

 

[daloudpack]

topping three times ur gonna get to bushy for your room ? are u running autoflowers again?if not how long are u vegging? i wouldnt go more the a couple weeks given ur area ... maybe an adjustable cfm fan.....or even just a 90 cfm in 90 cfm out since ur areas to small... i know nothing about led i grow cfl.....

 

[daloudpack]

do u fim? u can get up to 4 tops with a single fim

 

[weednurd420]

topping three times ur gonna get to bushy for your room ? are u running autoflowers again?if not how long are u vegging? i wouldnt go more the a couple weeks given ur area ... maybe an adjustable cfm fan.....or even just a 90 cfm in 90 cfm out since ur areas to small... i know nothing about led i grow cfl.....

im just worried about the size fan,I pretty much know what i can grow in my room, i can veg 1 plant for 2 months if i keep the tops even and super crop

 

[weednurd420]

any 1 else is 200 cfm 2 much

 

[pseudobotanist]

With 200cfm fan you will have about 6 air changes taking place in about 10 mins.

Punch your data in here. It's how I got your answer

http://www.csgnetwork.com/airexchangecalc.html

 

[weednurd420]

With 200cfm fan you will have about 6 air changes taking place in about 10 mins.

Punch your data in here. It's how I got your answer

http://www.csgnetwork.com/airexchangecalc.html

that is not to much is it