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Re: cooling lamps - why not put a cooling fan on the fan?
- To: Aquatic-Plants at actwin_com
- Subject: Re: cooling lamps - why not put a cooling fan on the fan?
- From: "S. Hieber" <shieber at yahoo_com>
- Date: Fri, 4 Oct 2002 14:38:53 -0700 (PDT)
- In-reply-to: <200210041948.g94Jm1222275 at acme_actwin.com>
K9AUB at aol_com said pushing is better than pulling with
fans:
> There are technical reasons why it is better to push air,
> not pull it.
> Consider that if the lamps are generating a lot of heat,
> what the long term
> effect of that heat will be on the fan's motor itself?
> You'll get much
> better life from the fan motor if you use it in push
> configuration.
Generally, yes, but cooling fans are often designed to
operate at higher temps. That point notwithstanding, the
temps in your hood aren't all that significant for a fan.
If your hood is over 150 degrees without a fan, the temp
will be less than 150 with one, blowing or sucking. If you
hood is over 150 degrees, an fan might not help, you might
need a fire extringuisher--what the heck have you got
burning in there? ;-)
Scott H.
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