Too much NOISE!!

Ok all.... I have a 8inch canfan and the thing is LOUD!!! Pls help... I need to make this thing quiet down... The wife needs her beauty sleep, TRUST ME! lol

get a silencer and use acoustic ducting

Insulated ducting and Muffler

Muffler

http://www.htgsupply.com/viewproduct.asp?productID=54559

Ducting

http://www.amazon.com/25-Silver-Jacket-Insulated-Duct/dp/B0002IGCO8

Exhausting into attic makes a good noise decrease as well for airflow noise

Sell it on eBay and buy a more appropriate fan.

those muffler's work awesome

put it in the attic and run insulated ducting

wrap some loft insulation around the body of the fan to act as sound deadening

Ive seen plenty of people build boxes around there fan. im sure that would reduce alot of noise.

Some are using dimmers on fans to help them quite down but performance will suffer. If your fan is overpowered anyway it might be an option for you. Ebay had some for a good price but you can find one anywhere. Some times a slight voltage drop will drastically change the vibration of the fan.

Also check that the wheel is clean. A dirty fan loses performance and creates more vibration. Always filter the air going into the fan or at least clean the wheel every so often.

is it lights on or off when she's trying to sleep?

Thanks for the replies! It is the air going into the fan that is making the noise. The air coming out it fine.... The fan itself is not that bad.... I need the 8inch as the room is pretty big and I need that smelly air sucked out. Any ideas?

NewbGrower^.^ said:

Insulated ducting and Muffler

Muffler

http://www.htgsupply.com/viewproduct.asp?productID=54559

Ducting

http://www.amazon.com/25-Silver-Jacket-Insulated-Duct/dp/B0002IGCO8

Exhausting into attic makes a good noise decrease as well for airflow noise

Click to expand...

Thanks for the tip! Can I use the muffler on the intake part of the fan?

ilove2sell said:

Thanks for the tip! Can I use the muffler on the intake part of the fan?

Click to expand...

Yes you can. You might have to try some configs for best noise reduction like muffler then ducting then fan, ducting then muffler then fan etc
Good luck

*a carbon filter on the intake side of a fan helps lower noise a bit as well

NewbGrower^.^ said:

Yes you can. You might have to try some configs like muffler then ducting then fan, ducting then muffler then fan etc
Good luck

*a carbon filter on the intake side of a fan helps lower noise a bit as well

Click to expand...

Adding the carbon filter is the real deal. My 8" fan, with no sound box, like my others are in, is quieter than the other 3, by a long shot. Also, like they said, the muffler, and or insulated duct work going off the fan into an attic or somewhere else really helps.

Those things sure do sound like a jet engine when you just turn em on, don't they!

I use a variable speed fan controller. Except in the afternoon when intake air is 83* my fan runs way quieter than it used to. Check out this link:

https://www.rollitup.org/grow-room-design-setup/351640-fan-control-cap-vsc-dne.html

bowlfullofbliss said:

Adding the carbon filter is the real deal. My 8" fan, with no sound box, like my others are in, is quieter than the other 3, by a long shot. Also, like they said, the muffler, and or insulated duct work going off the fan into an attic or somewhere else really helps.

Those things sure do sound like a jet engine when you just turn em on, don't they!

Click to expand...

Haha yep Reminds me of a big turbo'd car spolling up lol

Mine doesnt seem to make too much air noise, but it makes a hell of a humming noise that transfers through the wall when I use a speed controller to turn it down.

Smokej9009 said:

Mine doesnt seem to make too much air noise, but it makes a hell of a humming noise that transfers through the wall when I use a speed controller to turn it down.

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So the humming is created from turning it down with the speed controller only? I've never used a speed controller b4 but I was planning to get 1. Sry if I sound dumb, so blazed right now

Maybe switch around your times. To avoid that same problem with my cab, I run my lights from 5am to 11pm in veg, and 5a-5p flowering. Lights are on during peak power usage times and I can get to sleep at night.

NewbGrower^.^ said:

So the humming is created from turning it down with the speed controller only? I've never used a speed controller b4 but I was planning to get 1. Sry if I sound dumb, so blazed right now

Click to expand...

Yeah. The motor hums when it's not given the full rated voltage, (i.e, using a speed controller). Certain motors do it and some don't. Can't remember which is which. (I have 3 six inch Valueline Centrifugal fans.) One of them hums louder than the other two, and I probably should open it up and check the connections on it. Of course it probably just doesnt like that spot in the room. I actually put layers of bungee cord rubber, thin foam, pond liner, and carpet on the feet of it's mounting brackets and mounted it to a stud on the floor, which made a huge difference. the vibration (hum) disappates much better on the carpeted floor than it does on a wall, IMO. I needed the fan low but usually I try to put them up high.
I always go way overboard on fans because I am a big fan of capacity. I oversize everything from the git go. So I have to turn the speed of them down to minimize the sound of the air movement. Each one is way over-sized so I know I am exchanging air rapidly enough.

I mostly built my room this way because I needed flexibility.