4" vs 6" inline fan? Same price but only venting small space.

Vortex93

Member
So on ebay there is a fan + speed controller combo for a 6" or 4" inline fan, for about $120. Both are the same price, but the 6" makes a lot more noise (69 dB vs 51dB). I know a fan controller can help reduce the noise, but since i have no experience with inline fans and they noise they make i was looking for some opinions.

The space being vented is 2Wx5Lx5H (if not a little smaller), with about 15-20 CFLS probably running. About 50/50 of 13 and 23 actual wattage for each. I will be using a carbon filter, probably a home made one.

Also stealth is important, so if the 6" is reduced to 4" capabilities with a speed controller, would the 6" be louder? I would imagine not, but please give some insight! Thanks!

BTW ill have between 3-4 plants.

http://www.ebay.ca/itm/6-Inch-Inlin...ultDomain_2&hash=item3f108028c6#ht_2507wt_905
 
More air is better if your temp is ok, if you use insulation duct noise will be about the same. If you hang the fan you'll reduce vibration noise
 
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