noise prob with in line fan !

[buddymag00]

hi stoners n thanks for stoppin in . just about to set up a new closet. the vent unit is too loud for domestic sit, but as i am already overstreched, i need to find a cheap way to reduce the noise any help appreciated. here couple pics from my first closet 2hydrofarm screen o g

 

[FreezerBoy]

More info on the setup, please? At first glance I see nothing that justifies an inline. I made the stupid mistake of purchasing an inline for a small grow while in a flu induced state of panic. Between that and attempts to tame it, it was $300 down the tubes when all I needed was another intake hole. It could be your cheapest, most effective fix is to lose the inline in favor of a $10 axial fan. How big is the lamp and what size are your intake and exhaust ports? Where does the garden live?

But, to answer the original question. A Router Speed Controller (aka Speedster) will slow the fan down quieting it a bit. There are DIY mufflers http://www.icmag.com/ic/showthread.php?t=65345. Insulated ducting. Fan isolation chambers built from coolers or boxes lined with accoustic deadening materials ... If you're going to keep the inline, best bet is to move the fan into another room (say, the attic) or lock people out of the room. There is no way to silence it so that people in the room won't know it's on.

 

[Whatever]

What fan do you have? If a Vortex I can understand why you're having a noise issue. A speed controller will help but there are less expensive controllers available than a Speedster. I also don't like Speedsters because they don't give you very fine control of the speed. My experience is the noise is stronger on the intake side. Mufflers do work well.

 

[buddymag00]

thanks for the replies and the info.think ill make a muffler.im doin a 600w closet grow but i have an old inline and dont have the fan in the pic.

 

[BennyHogan]

anyone know where to get a plug-in speed controller???

 

[ripOG]

anyone know where to get a plug-in speed controller???

There are a lot of ones out there.
http://www.plantlightinghydroponics.com/cap-variable-speed-fan-control-p-2263.html

 

[BennyHogan]

There are a lot of ones out there.
http://www.plantlightinghydroponics.com/cap-variable-speed-fan-control-p-2263.html

I have a HydroFarm Active Air Blower and for some reason it says not to use a "SPeedster" controller with them.....what plug-in controllers would work for me???

 

[smoketrichs]

get a small 3-5 amp variac (variable transformer). It's the only way to slow down and quiet inline fans w/o the hum.

 

[BennyHogan]

get a small 3-5 amp variac (variable transformer). It's the only way to slow down and quiet inline fans w/o the hum.

Ran a google for it.....really have no clue what I'm looking for???

My fan is the 90 CFM model and I'm basically looking to cut its speed in half.

THanks for any help

 

[Guest]

Speed controllers are designed for Brush Type Motors and not intended for capacitor or slow start motors. OK??????????????????

 

[BennyHogan]

Speed controllers are designed for Brush Type Motors and not intended for capacitor or slow start motors. OK??????????????????

So there is no way of controlling its speed???


I saw a guy on another thread using a blower just like mine on a plug-in controller, I asked where he got it but have yet to get a response.


CHeers

 

[smoketrichs]

http://shop.vendio.com/Evan2002/item/787703405/?s=1211797929 thats a small 3amp variac (smallest ive seen em). Took me 5 secs to find on google.


What a variac does basically is control how many volts flow using that dial at the top and a magnetic coil. just plug the fan into the variac and plug the variac into a power outlet and adjust to needs, simple.

 

[petemoss]

Speed controllers are designed for Brush Type Motors and not intended for capacitor or slow start motors. OK??????????????????

I think you're wrong about that, Ty-Stik. Speed controllers that are not variacs can be used to slow down centifugal fans. I have several. Here is one sold by Continental Fan (parent co. of Elicent):


It uses a "triac" to lower the voltage (don't ask me what that is!), as you can see from the simplified schematic.


I have another speed controller sold by Fantec specifically for their centrifugal fans. Same as the Elicent except it has only two wires.

 

[petemoss]

Hey smoketrichs, good find on that variac for $48. I've never seen one that cheap. They used to go for over $200. You know, if you ask a purist (HVAC engineer), he'll always tell you that the centifugal fans are meant to run at 120 volts and should not be speed controlled, as that puts additional stress on the motor and shortens the life of the fan. They tell you to buy a smaller fan!