Paradox
©
Fisana

Jump to content


Photo
- - - - -

DIY Inline Fan Silencer


  • Please log in to reply
13 replies to this topic

#1 Jaspmf

Jaspmf

    Watchin em' grow

  • Expired Member
  • 1,151 posts

Posted 10 August 2009 - 08:11 AM

So this isn't originally my idea or anything
Works hella well though.
Takes like 10 minutes tops.
Note: You can make it look alot nicer, but I'm all about utility.
Step 1.
Get a box the fan'll fit in, get some foam crap. The stuff in the pic (1.JPG) under attached images or something similar is good.

Step 2.
Wrap the fan in a bin bag or cling film so the foam doesnt stick to ya fan

Step 3.
Place the wrapped fan into the box.

Step 4.
Put the ducting on the fan b4 closing up the box. Makes things easier.

Step 5.
Tape that shit shut! Tape it well because the foam you spray in'll do some expanding, and that shit gets everywhere.
The 5th picture is just to show what the inside looks like after you fill it.
Be sure its good n closed b4 doin the foam, unless you do it outside or somethin. Tape the shit outta it. Leave a small area open where you can start sprayin the foam.

Step 6.
Go pepe' lepeux, start sprayin.
Don't use a full can, you'll blow the box apart.
It's also helpful if you poke a hole or 4 in the box @ various locations so you don't blow the box apart if you use too much. If you chose to leave that opening, tape it right away when you're done sprayin foam. Shit expands quick.

You have a quiet inline fan now. Congrats.:eusa_booh

Attached Thumbnails

  • 5.JPG
  • 6.JPG
  • 7.JPG
  • 3.JPG
  • 4.JPG
  • 1.JPG
  • 2.JPG


#2 Jaspmf

Jaspmf

    Watchin em' grow

  • Expired Member
  • 1,151 posts

Posted 10 August 2009 - 08:20 AM

If you find that your fan makes lots of noise simply due to the amount of air its moving through your ductwork a handy trick is to use bigger duct than your fan.

I.E w/ a 6" fan use 10" duct.

Also simply using bungees to hold the fan in place inside the growroom cuts down loud vibrations quite a bit.

Another tip is acoustic ducting. Shits quiet.

Silencers that go into the ductwork can be had, but last I checked they are expensive (like 80 bucks for a 6") :(


Cheers

#3 ShroomGuerilla

ShroomGuerilla

    Myco-Monkey

  • Expired Member
  • 1,424 posts

Posted 10 August 2009 - 12:30 PM

Hrmm. Very interesting.
I have never needed to muffle my inlines,
found they are plenty silent compared to squirrel blowers
and the like...

How much better does it work than hanging with bungees?

#4 DrDee

DrDee

    Mycophage

  • Expired Member
  • 164 posts

Posted 10 August 2009 - 08:37 PM

Hrmm. Very interesting.
I have never needed to muffle my inlines,
found they are plenty silent compared to squirrel blowers
and the like...

How much better does it work than hanging with bungees?


Just to inform you ShroomGuerrilla,
Panasonic squirrel cage fans are so quiet that I have to touch mine occasionally to be sure they're running. vortex fans are much louder generally. I'm talking specifically of the whisper line Panasonics...
Dee

#5 Jaspmf

Jaspmf

    Watchin em' grow

  • Expired Member
  • 1,151 posts

Posted 10 August 2009 - 08:39 PM

9.85%

Naw, I dunno. I had a noisy one awhile back, really muffled the shit outta that. I've since ditched that fan though.

You're right though, most of them are pretty damn quiet to begin with.

It really silenced the new one though. Can't hear a whir from the actual fan. Just the air movement.

If you don't have a problem w/ the sound yours emit though I wouldn't waist the time.

Nice trick for those of us in ultimate stealth-mode. :reb:

#6 mushmind

mushmind

    campus radical

  • Expired Member
  • 1,142 posts

Posted 11 August 2009 - 01:42 PM

great tip! i'm going to need to do something for my 800 cfm squirrel cage blower. the squirrel cage is quieter and more powerful than an inline i had which moved alot less air.

#7 Jaspmf

Jaspmf

    Watchin em' grow

  • Expired Member
  • 1,151 posts

Posted 11 August 2009 - 04:38 PM

:bow:

#8 the_chosen_one

the_chosen_one

    electro gypsy

  • Honorary Former Staff
  • 8,113 posts

Donator

Posted 11 August 2009 - 04:45 PM

Just to inform you ShroomGuerrilla,
Panasonic squirrel cage fans are so quiet that I have to touch mine occasionally to be sure they're running. vortex fans are much louder generally. I'm talking specifically of the whisper line Panasonics...
Dee


oh god yes! the whisper green line. awesome! :bow:

#9 the_chosen_one

the_chosen_one

    electro gypsy

  • Honorary Former Staff
  • 8,113 posts

Donator

Posted 11 August 2009 - 04:52 PM

nice thread jas. you must be in the hvac business as well lol.

i've considered something like this using a metal plenum box.

archive material

:heart:

#10 Jaspmf

Jaspmf

    Watchin em' grow

  • Expired Member
  • 1,151 posts

Posted 11 August 2009 - 07:29 PM

awww :love:

nah no hvac for me, just resourceful hehe.

Glad to have an opportunity to contribute, hopefully I can come up with lotsa goodies for ya'll.

:D :D Just made my day

#11 the_chosen_one

the_chosen_one

    electro gypsy

  • Honorary Former Staff
  • 8,113 posts

Donator

Posted 11 August 2009 - 09:04 PM

that just made mine.

:heart:

#12 DrDee

DrDee

    Mycophage

  • Expired Member
  • 164 posts

Posted 12 August 2009 - 05:46 PM

Hi Jas,
Sorry to be a distraction on your thread. There are some really quiet fans out there, but if you have a noisy one, your little muffler should do the trick.

In fact I have a 450 Vortex I took out of service because of noise. I may have to re-think that.
Take care,
Dee

#13 Jaspmf

Jaspmf

    Watchin em' grow

  • Expired Member
  • 1,151 posts

Posted 12 August 2009 - 09:33 PM

You absolutely aren't a distraction my friend.
The whole idea is discussion.

It's true, many fans are near silent. Those fans are definitely to be desired.
Now every fan can be near silent :D

I'm preparing for a move to an appartment, so it's essential that my new setup is ultimate stealth.

Thanks for stoppin by D :D

#14 Burger

Burger

    Old Hand.

  • Validating
  • 596 posts

Posted 12 August 2009 - 09:34 PM

Another tip is acoustic ducting. Shits quiet


I'll second the acoustic ducting.

Not only does it quiet things down, but most is designed to also thermally insulate, which is great when used to cool HID lighting in hot environments.




Like Mycotopia? Become a member today!