Quietest CENTRIFUGAL Fan around 200mm-250mm

[SoliSticS]

I'm also looking into picking up a centrifugal fan for use with an as yet un-purchased carbon filter. Noise is always a concern but I'm trying to gauge just how loud one of these things are. Are we talking lawnmower loud? If so, then I'm going to have to look at a silencer.

 

Has anyone used the Can-Fan Max range of fans? From the marketing fluff they appear to use the carbon filter as a muffler by re-routing airflow. There's details here..

 

www.hollandforge.com.au/contents/en-us/d26.html

 

I'd rather spend the extra cash on something that's outright quiet rather than try to silence something later.

[Gazza2001au]

I'd rather spend the extra cash on something that's outright quiet rather than try to silence something later.

sounds like u need an aqustic i think thats spelt right fan its a fan in a box filled with polystyren your average centrifugal fan will be around 47db your average axal fan will be around 40db and one of these aqustic fans are rated at as little as 18db but they do cost abit you can find them in UK shops online

[Radic]

yes they work irey

everytime

$200 is too exe for me

i would make it myself

eze

from scrap cardboard, alluminum foil and duct tape

it just a set of baffalles

 

http://www.acousticalsurfaces.com/hvac/images/duct_silencer_flow.jpg

 

make sure it is safe at running temptures

dont wanna start any fires

google for the planz if your not sure

 

irey guidance

[Gazza2001au]

heres the acoustic fans i was talking about scroll down to the bottom http://www.progrow.co.uk/acatalog/extractors-brackets.html

[SoliSticS]

Thanks for the link Gazza! I cant believe how much cheaper fans are in the UK! I should start an import/export business!

 

Radic, like your thinking too. I'll exercise my Googleing skills and check out some plans. If it's not too taxing I'll probably go that route.

[Gazza2001au]

i dont think u looked at there shipping mate its fucking bull shit the good side is u can find bargains on ebay for fans all u need is a international plug converter as in the uk they have the same 220-240v power Edited May 7, 2009 by Gazza2001au

[shirty]

Im no expert , but ALL the centrifugal fans Ive looked at are LOUD ,, but thats a by product of them doing the job they are meant to do.. which is moving air while under pressure/restriction caused by a carbon filter etc..

 

Ive got a 100mm Ezi AIR centri, sucking thru a 100mm Mountain Air CF , & its LOUD .. no two ways about it.. about the same as a 150mm Westaflex, which is a very popular fan, & nowhere near big enuff for a LARGE grow room imo.

 

Acoustic ducting , baffle boxes , mufflers , silencers & speed controllers seem the only way to quell the noise,, which is something Im going thru myself atm .. Im midway thru my build , but Im confident a combination of these controls can ensure a stealthy solution.

 

Go D.I.Y. , its not rocket science , just a lot of padding

 

[Gazza2001au]

Ive got a 100mm Ezi AIR centri, sucking thru a 100mm Mountain Air CF , & its LOUD .. no two ways about it.. about the same as a 150mm Westaflex, which is a very popular fan, & nowhere near big enuff for a LARGE grow room imo.

 

shirty, do u have the white plastic EZI fan or the grey metal EZI fan as the EZI range makes 2x 100mm centrifugal fans this way if u tell us people can a void the loudest of the two

[shirty]

Oh, its the metal one.. in a nice shade of 'old man pants' biege/off white

 

[Chronmasta]

i`ve got an 'Allvent' 6" inline fan sitting inside 8" acoustic ducting with a length of 12" acoustic duct attached to the end and its nice n quiet .......its cooling a 1.4x2.8x2 tent with ease (would`nt recommend it in summer though)

 

All the best,

 

 

 

 

Chron