cooling hood - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 05-23-2005, 11:34 PM Thread Starter
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cooling hood

I have instaled a PC fan who suck the air from the hood. But the aquarium temperature only droped to 28 C. Now I am sinking to add another one. Shall I instal it in a way to blow air insid the hood or to extract air from it.
Any sugestion ?

Alex
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post #2 of 7 (permalink) Old 05-23-2005, 11:50 PM
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In saltwater the air blows in to keep the fans working. In fresh, the direction is not as importaint.

Moved to Tucson.
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post #3 of 7 (permalink) Old 05-23-2005, 11:52 PM
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Set up the other fan to suck air out also. My hood is set up with 2 fans towards the front on either side. They both suck air thru the hood and to the outside. The cooler air comes in from the rear of the hood which has an opening about an inch high x the length of the tank. The two fans puul the cooler air across the light bulbs and out the front.
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post #4 of 7 (permalink) Old 05-23-2005, 11:58 PM
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Quote:
Originally Posted by BlueRam
In saltwater the air blows in to keep the fans working. In fresh, the direction is not as importaint.
I assume that you are talking about keeping the fans working because there would not be any saltwater mist going thru the fan. That would make the metal parts rust.
Another reason for blowing the air in is that the air flow over the surface of the water produces more evaporation causing the water temperature to lower. So you might want to have the fan blow in instead of out or adding another fan.

Ron
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post #5 of 7 (permalink) Old 05-24-2005, 12:47 AM
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Both fans need to blow air in the same direction. It doesn't make a lot of difference push air in or pull air out.
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post #6 of 7 (permalink) Old 05-24-2005, 01:16 AM
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Quote:
Originally Posted by Chamkeeper
Both fans need to blow air in the same direction. It doesn't make a lot of difference push air in or pull air out.
Exactly, The important thing is that there's an inlet/outlet at the opposite end to allow the air to flow thru.
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post #7 of 7 (permalink) Old 05-24-2005, 07:40 AM Thread Starter
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Thank for the help.

Alex
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