Which fans are the most efficient and least noisy, basically BEST??!!!

I wanna buy a fan for my room (850 Cubic Feet) to create Negative pressure. I will be ducting to the only window there is in the room; which means, the fan will be near the window, and I live in a quite neighbourhood . I want a good pull, as I will be cooling 2x 1000W hoods and 1x 250W hood. Planning to have 2 tents. One fan at the window, carbon filter between the fan and the first 1000W (which will be in flower room). So what are the options as I know fuck all about fans. Is it inline fans I am looking for, or high velocity?.....


Thanks everyone.

You can build a box around the fan and suspend it with bungee cords there is a how to in the do it your self section. I have done this I live in a small apartment and my grow room shares a wall with the neighbor so sound is my biggest issues but this cut the sound over half and once I put my filter on and switched to insulated ducting you could barley hear anything.

rcindica said:

You can build a box around the fan and suspend it with bungee cords there is a how to in the do it your self section. I have done this I live in a small apartment and my grow room shares a wall with the neighbor so sound is my biggest issues but this cut the sound over half and once I put my filter on and switched to insulated ducting you could barley hear anything.

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Jeez man, thanks. Awesome advise. Is inline fan strong enough btw? Or is there anything stronger?

rcindica said:

You can build a box around the fan and suspend it with bungee cords there is a how to in the do it your self section. I have done this I live in a small apartment and my grow room shares a wall with the neighbor so sound is my biggest issues but this cut the sound over half and once I put my filter on and switched to insulated ducting you could barley hear anything.

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Is there any chance you could link me to the thread since you know the name already. I can't find it.

Something like this, with a speed controller is almost silent

http://www.amazon.com/gp/product/B002JQ14F8/ref=wms_ohs_product?ie=UTF8&psc=1

AimAim said:

Something like this, with a speed controller is almost silent

http://www.amazon.com/gp/product/B002JQ14F8/ref=wms_ohs_product?ie=UTF8&psc=1

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Go Bigger Than Needed for room though right? So at a lower speed you still get the right amount of air movement?

Liddle said:

Go Bigger Than Needed for room though right? So at a lower speed you still get the right amount of air movement?

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Yes . . . . . . . .

AimAim said:

Yes . . . . . . . .

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So if my room is 850 cubic feet. Would 500 CFM suffice? They say when you swap the air in every 3 mins should be grand.

Maybe something like this?...http://www.ebay.ie/itm/In-Line-Duct-Fan-Centrifugal-6-150-mm-520-m3-h-2350-RPM-/321186278671?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item4ac831ad0f

520m3/per hour = 8.7 m3 per minute = 307 CFM

Daithy said:

Is there any chance you could link me to the thread since you know the name already. I can't find it.

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Well it wasn't on RIU but heres the link

https://www.thcfarmer.com/community/threads/diy-sound-proof-box-to-silemnce-your-inline-fan.46564/

someone correct me if I'm wrong but I believe an inline fan will be your best bet. I would go 8'' its always better to have more and control it with a speed controller then have to buy a larger fan after you find out you need more air flow. especially running over 2K.

I even saw someone put an inline fan inside a larger 18+ gal. rubbermaid tote and use insulation to control sound.

this is the fan you need bro. for that big room . http://www.harborfreight.com/24-inch-high-velocity-shop-fan-93532.html this is a very good fan for the price compare it up too 500 dollar fans, with the cfm its a super good fan I have 3 of theses it moves a lot of air perfect to have the positive air pressure. every fan has some noise. because of the blades. the noise is average. highly rec you get this fan ! has a high and low. I don't run ac. when cash is low I run this to cool the flower room . 12 600 watt bulbs in one of the rooms it cools it. yes I have air cooled hoods . but we all know that's not enough .

rcindica said:

Well it wasn't on RIU but heres the link

https://www.thcfarmer.com/community/threads/diy-sound-proof-box-to-silemnce-your-inline-fan.46564/

someone correct me if I'm wrong but I believe an inline fan will be your best bet. I would go 8'' its always better to have more and control it with a speed controller then have to buy a larger fan after you find out you need more air flow. especially running over 2K.

I even saw someone put an inline fan inside a larger 18+ gal. rubbermaid tote and use insulation to control sound.

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I have a problem with 8" because Cooled Reflectors flanges usually only come on 4" or 6" ...

Daithy said:

I have a problem with 8" because Cooled Reflectors flanges usually only come on 4" or 6" ...

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There are 6'' to 8'' duct adapters.

rcindica said:

There are 6'' to 8'' duct adapters.

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Oh, cool, didn't know that, thanks.