Quietest CENTRIFUGAL Fan around 200mm-250mm

[TheTreeBoundRat]

I use a 350MM centrifugal fan which is overkill but I keep it down low. Noise hasn't been much of a problem since using insulated ducting.

[TD.]

i use a yellow westaflex 200mm with a 200mm odor sock - its fkn loud without a filter.....still loud with a filter

i also use a black mixed-flo 125mm inline fan with a 125mm odor sock - its fkn quiet like a mouse compared to the yellow fan/filter....im talking super quiet.

[nitram]

I agree with TD's selection of the "Mix-flow" fans.

 

I have to declare a i have a 200mm Mix-flow & c/f.

 

TD...i use a yellow westaflex 200mm with a 200mm odor sock - its fkn loud without a filter.....still loud with a filter

 

i also use a black mixed-flo 125mm inline fan with a 125mm odor sock - its fkn quiet like a mouse compared to the yellow fan/filter....im talking super quiet.

 

It's important to match-up all round. Consider things like room size, air-movement volume, minimize air restrictions, fix properly to fan the ducting, Fan struts/supports (rubber/foam) or fixing points, & lastly your grow style + plans. This not only will decide which fan but the size you need. My recent research showed me that a 'Mix-Flow' fan is designed to reduce the noise caused by friction & provide the efficient displacement of air. I've mounted it to my c/f & turned it on - a very slight wispser and so quiet - I'm impressed

Nitty.

[Gazza2001au]

i have given the odor sok the flick after one grow i now have a carbon filter i will be using with my mixflo fan im sure it'll work sweet

[SoliSticS]

It's important to match-up all round. Consider things like room size, air-movement volume, minimize air restrictions, fix properly to fan the ducting, Fan struts/supports (rubber/foam) or fixing points, & lastly your grow style + plans.

 

I found a really handy worksheet for determining the appropriate fan size for your room here...

 

http://www.hollandforge.com.au/contents/en-us/airflow.pdf

[SoliSticS]

...oh and having done some reading I think Nitty and TD are on to something. Mixed-flow fans seem to be the best of both worlds. Westaflex manufacture them but just curious what brand you guys went with.

[Gazza2001au]

the brand of fan i have is Mixflo MF-100S

[TD.]

if your interested in having a look at the mixed-flo fan i purchased the link is here

 

[EDIT:] after posting this reply i decided to check the link and the store.....much to my surprise they have a 100mm mixed flo......which i would have purchased then and there if it was for sale at the time life fights me.....every bloody step it can !

all im thinking is my 125mm mixed flo is super quiet so the 100mm would have been non-existent as far as sound is concerned.

Edited May 12, 2009 by TD.

[Gazza2001au]

if your interested in having a look at the mixed-flo fan i purchased the link is here

 

[EDIT:] after posting this reply i decided to check the link and the store.....much to my surprise they have a 100mm mixed flo......which i would have purchased then and there if it was for sale at the time life fights me.....every bloody step it can !

all im thinking is my 125mm mixed flo is super quiet so the 100mm would have been non-existent as far as sound is concerned.

i have the 100mm version its the same fan as the 125mm just different size spigots

[SoliSticS]

Thanks for all the advice guys. In the end I've settled for a 150mm Westaflex Mixflow MF150 which is winging it's way to me as I type! Next decision is what carbon filter to attach to it. Was thinking about a Mountain Air or Phat filter. Anyone had any experience with either?

 

 

Cheers,

 

Sol