quiet...requesting quiet(scrubber fan is noisy)

[Guest]

Sorry bout the title...the line from 10cc just came in my head as I typed.

I was wondering if anyone has any tricks or tips for quietening(is that a word?) my 465cfm fan that pushes through my homemade scrubber. It seems a little qieter once the scrubber is hooked up...but still too noisy. I have it screwed to the ceiling joyces, but that just causes too much vibration and the wood acts as a loudspeaker.

If some peole have other tips, then maybe I can save some trial and error time.

Cheers,

 

[Sauce]

Bathroom fans can be very quiet. I know Panasonic makes some really quiet fans but they will cost you. For a powerful and quiet fan it will run you about $130. They are rated in sones, the equivalent of 1 whisper.

 

[Guest]

A lot of people mount their fans using something elastic rather than screwing directly into the wood. Put in some hooks and then use bungee cord or bicycle inner tube to suspend the fan.
Also, you can wrap the fan & ducting in thin insulation.
Hope this helps ya out & good luck!


Bh

 

[Guest]

You took the words right out of my mouth Bipedal!

 

[NiteTiger]

Another good option for reducing sound is to get a speed controller.

 

[Guest]

Thanks folks...
Sause: I don't want to purchase another fan.

Bipedalhominid: Very helpful, and that was my next plan to try, I just wanted to see if there was something else I haven't hear dof.

NiteTiger: Can the fan still perform it's duties properly at a slower speed?

Cheers,

 

[tokinsmokin]

Yeah, the ducting insulation works very well to quiet noise, I've done this with my 500 cfm fan and A/C and it works great. Also I used what bipedal said with the bungee cords as well to hold up the fan. After this I could barely hear it running.

There are duct mufflers that you can buy, never tried it though.

Depending on if your room can go a little hotter you could use a fan control and will help tons with noise, If your room is already farely hot I would choose other methods of lessening the noise. But if you can sacrifice a little more heat then this is a good approach.

 

[UNREGISTRD]

what kind of insulation did u wrap your fan with?
i was thinking of doing this as well for the noise issue!

 

[Guest]

I'm going to HD tomorrow, so I'll keep an eye out for soem duct insulation. I was thinking of doing all my duct work for the heating system of the house anyways.

Cheers,

 

[NiteTiger]

NiteTiger: Can the fan still perform it's duties properly at a slower speed?

It can indeed. My fan is an 8" 747 CFM fan, and at full speed it moves a TON of air, generating a ton of noise. It also kills my RH, and in the winter, cooled too much! I added a speed controller, and dialed it in to the setting that moved enough air to do it's job, but no more.

That setting ended up being about 1/4 speed

 

[onthatlevel]

all the above replies are great ideas. you might also wanna try a duct muffler....you can make them pretty easily yourself.

heres mine:



all the supplies for it were bought at home depot (i used some leftover supplies from making my own scrubber). its just some hardware cloth rolled into 4 inch tube, and 4 inch to 6 inch cap thing, some stuffing from a pillow, and a 6 inch solid sleeve.

you should get a general idea from the pic. mines still a bit loud (uninsulated ducting) but it definitely helped me out.

 

[medicaluser420]

I just hooked my 265blower up and I did the bunge cord thing worked the best plus with all the ducting it does not make too much noise it just takes up some space. The speed controller is a great option if your fan is too powerful to begin with.

 

[Suby]

A note of Speed controllers.

Speed controllers are great but you need to use the right one and IMHO the ones the manufacturers offer are overpriced.
Alot of people use regular dimmers but this is a mistake a dimmers lower the power to the fan moter to slow it down which is bad for the motor and is noisier.
What you want is ceiling fan dimmer or a solid state dimmer, these vary the frequency and are meant for fan type motors.

 

[Guest]

what kind of insulation did u wrap your fan with?
i was thinking of doing this as well for the noise issue!

There is ducting that comes pre-wrapped or coated with insulation.
I went to HD & got a roll of the thinnest plastic covered attic insulation & wrapped my ducting & fan in that. Hey, what ever works. hehe

Bh

 

[Guest]

Thanks Suby!!!! I never would have known

 

[Guest]

Thanks folks....I hung my fan with a rubber bungie cord from a plastic coated steel hook screwed into the above floor joyce....and it is as quiet as I need it. Hooked up the DIY scrubber, and that made it even quieter.

Cheers,