cooling hood

alexandre · 05-23-2005, 11:34 PM

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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**BlueRam** · 05-23-2005, 11:50 PM

In saltwater the air blows in to keep the fans working. In fresh, the direction is not as importaint.

m.lemay · 05-23-2005, 11:52 PM

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.

albinooscar · 05-23-2005, 11:58 PM

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

Chamkeeper · 05-24-2005, 12:47 AM

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.

m.lemay · 05-24-2005, 01:16 AM

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.

alexandre · 05-24-2005, 07:40 AM

Thank for the help.

Alex

05-23-2005, 11:34 PM	#1 (permalink)
alexandre Algae Grower (View User Tanks) PTrader: (0) Join Date: May 2005 Location: cyprus Posts: 77	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

05-23-2005, 11:50 PM	#2 (permalink)
BlueRam Wannabe Guru (View User Tanks) PTrader: (0) Join Date: Sep 2004 Location: Seattle, WA Posts: 1,660	In saltwater the air blows in to keep the fans working. In fresh, the direction is not as importaint. __________________ Greater Seattle Aquarium Society Member (GSAS.org) Plant Auction February 12th, General Auction April 12th Community 60 gal T8 +CO2 +sump. Clown Barbs 75 gal T8 +sump Goodeidae project 20Long PC

05-23-2005, 11:52 PM	#3 (permalink)
m.lemay Moderator (View User Tanks) PTrader: (9) Join Date: Jul 2002 Location: Naugatuck, CT. Posts: 2,646	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. __________________ FILSTAR Pimp #2 75 gal heavily planted,50/50 Black beauty,Eco-complete substrate, Pressurised CO2 with solenoid, ph controller, AB Reactor 1000, 330 watts 9325K GE PC lighting,Ehiem Liquidoser, 2-Filstar xp3 canisters.

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05-24-2005, 12:47 AM	#5 (permalink)
Chamkeeper Algae Grower (View User Tanks) PTrader: (0) Join Date: Apr 2005 Location: NEPA Posts: 37	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.

05-24-2005, 07:40 AM	#7 (permalink)
alexandre Algae Grower (View User Tanks) PTrader: (0) Join Date: May 2005 Location: cyprus Posts: 77	Thank for the help. Alex