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InvisibleDNKYD
Turtle!

Registered: 09/24/04
Posts: 12,326
Tyvek covered computer fan
    #3192950 - 09/28/04 09:05 PM (12 years, 2 months ago)

Hey all.
If I were to rig a computer fan to my fruiting chamber, would I want it to suck air in, or blow air out? I plan on covering it with some tyvek to fiter.
Thanks!


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Offlinediscman1
journeyman
Registered: 08/24/04
Posts: 962
Last seen: 11 years, 11 months
Re: Tyvek covered computer fan [Re: DNKYD]
    #3192982 - 09/28/04 09:13 PM (12 years, 2 months ago)

A computer fan is not powerful enough to push air through Tyvek. Even one of the 120mm, 80cfm monsters. You will burn it up. They are not designed to push air through any sort of resistance - even a long tube is pushing it. Take a piece of Tyvek and try to blow through it. Sure, it lets air pass, but it is very difficult.

You're welcome to try, though. :wink:  You would not want the fan sucking air out of the chamber. That would create a vacuum inside and it will suck air in from anywhere it can - unfiltered air... unless you plan on covering the whole thing in Tyvek. :wink:


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Invisiblez@z.com
Libertarian
Registered: 10/13/02
Posts: 2,876
Loc: ATL
Re: Tyvek covered computer fan [Re: DNKYD]
    #3192984 - 09/28/04 09:13 PM (12 years, 2 months ago)

Tyvek is not going to allow enough airflow. The fan will burn out. Just put some tyvek over a hole or two with no fan. This will allow some air exchange. I would place the holes at the bottom of the chamber to allow co2 to escape.


--------------------
"Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their own conscience." - C.S. Lewis

"I would rather be exposed to the inconveniencies attending too much liberty than to those attending too small a degree of it." - Thomas Jefferson


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InvisibleDNKYD
Turtle!

Registered: 09/24/04
Posts: 12,326
Re: Tyvek covered computer fan [Re: z@z.com]
    #3192990 - 09/28/04 09:15 PM (12 years, 2 months ago)

Ah, thanks. Didn't think about that vacuum thing :smile: I'll have to find some hepa filters I can cut up to use.


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InvisibleNOS4A2
Sh!tApple

Registered: 07/22/04
Posts: 510
Loc: notfarfromtheshittree Flag
Re: Tyvek covered computer fan [Re: DNKYD]
    #3193047 - 09/28/04 09:28 PM (12 years, 2 months ago)

I use comp fans on mine if your interested


--------------------
Hail to the King, Baby
CulturingTech


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Offlineupspoon
member

Registered: 07/05/04
Posts: 153
Loc: Toronto, Ontario
Last seen: 10 years, 4 months
Re: Tyvek covered computer fan [Re: NOS4A2]
    #3193404 - 09/29/04 12:30 AM (12 years, 2 months ago)

How did you rig up the wiring for that?


--------------------
***Spiral Out, Keep going.***


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OfflineGr0wer
always improving
Male

Registered: 09/16/03
Posts: 5,644
Loc: El Paso, TX Flag
Last seen: 17 hours, 16 minutes
Trusted Cultivator
Re: Tyvek covered computer fan [Re: upspoon]
    #3193432 - 09/29/04 12:35 AM (12 years, 2 months ago)

Use a battery charger power supply. Make sure its DC anywher from 6-12v. If you want it quiet run it at 9v.

Have you seen the doubble tub thread? You dont need a fan you can just have polyfill wads in 2" holes just above the casing layer and on the lid for passive ventilation and no fanning.


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