Calculating Fan Size

[q9p9q9p9]

at 12"x 13"x 29"= 2.619 cu ft. Most of the recommendation suggest to circulate 3 times a minute. Thats only 7.857 cfm need? If you add in the scrubber would a 60cfm computer fan be sufficient. Temps are not an issue here.

 

[maryjohn]

60 cfm rating is not the same as circulating your air 3 times a minute through a scrubber.

see scrubninja's beginner's guide to pc fans.

 

[redbull834]

at 12"x 13"x 29"= 2.619 cu ft. Most of the recommendation suggest to circulate 3 times a minute. Thats only 7.857 cfm need? If you add in the scrubber would a 60cfm computer fan be sufficient. Temps are not an issue here.

i can fart more cfm then that bro allways go for a bigger fan then you need and use a speed regulator will be the best way

 

[Jnugg]

What size is that 60cfm computer fan in inches (4" or 6")?

The Can 2600 and Can 9000 might be what you're looking for....otherwise I would suggest maybe a 6" S&P TD-150 matched to a Can 33,but you might find that overkill,but overkill on ventilation can be your friend.

 

[Jnugg]

How big is that 60cfm computer/axial fan in inches (4" or 6")?

I think the Can 2600 or Can 9000 would be just what you need...either that or a 6" S&P TD-150 matched to a Can 33 filter.

 

[q9p9q9p9]

its a 4" fan. The question that im asking is would a fan rate at 60cfm unrestricted be enough for that size box. And secondly what if it was pulling through a 1" layer of carbon.

 

[Jnugg]

Are yo using this fan just primarily for ventilation/deodorization or are you planning on air-cooling your light or cooling the grow with it.I see you say temps arent an issue but that depends...what size light are we using?

Can Filters states that a 4" axial/PC fan matched to a Can 9000 filter would have an airflow of 47cfm.The same fan connected to a Can 2600 filter would have an airflow of 39cfm.The unrestricted airflow/cfm of the said 4" axial/PC is not listed in their specs.

So I'd say Can 9000 or Can 2600 filter.