http://www.utahreefs.com/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 19 Jul 2026 08:55:19 +0000 Tue, 19 Jul 2005 19:12:46 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.03 360 www.utahreefs.com/forum/RSS_post_feed.asp?TID=7368 http://www.utahreefs.com/forum/1by1.gif http://www.utahreefs.com/forum/ http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71166&title=fan#71166 Author: Mark Peterson
Subject: 7368
Posted: July 19 2005 at 7:12pm

A fan is certainly efficient at moving hot air away from the lights, but it's greatest value is in the cooling effect of evaporating water. The fan is most efficient when pointed slightly down across the surface of the water.

Clip the cheap fan on the back side of the hood to blow air in and down on one half and the heat will escape as hot moist air from the other half of the backside.]]> Tue, 19 Jul 2005 19:12:46 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71166&title=fan#71166 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71119&title=fan#71119 Author: derikhills
Subject: 7368
Posted: July 19 2005 at 11:24am

I would go with a fan in the hood, mabey between the lights and water(if possible) seems more eficient to prevent the initial heating of the water than cooling it after its been heated.  I'm really interested in Japan so if you don't mind could you PM me about your trip]]> Tue, 19 Jul 2005 11:24:32 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71119&title=fan#71119 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71118&title=fan#71118 Author: dnellans
Subject: 7368
Posted: July 19 2005 at 11:20am

i would just buy a clip on if you think its a temporary problem. walmart has some $8 clip on fans with 2 speeds that are pretty big (andwhite) and i've got one going on my sump.  lowered the temp from84 to 79 where the heater now is even kicking in.  a goodinvestment in my book!

-dwn
]]> Tue, 19 Jul 2005 11:20:24 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71118&title=fan#71118 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71109&title=fan#71109 Author: tileman
Subject: 7368
Posted: July 19 2005 at 7:05am

I have two computer fans in my open back and top canopy and in the last couple of weeks my temp rose also, so I just put a clip on fan on the top of the canopy and pointed it down into the water and it brought the temp right down to where it should be 78. I believe you would get the same results by putting it down by the sump also.  Just beware you will have more evaporation of water with the fan.]]> Tue, 19 Jul 2005 07:05:43 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71109&title=fan#71109 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71105&title=fan#71105 Author: peiji
Subject: 7368
Posted: July 19 2005 at 4:39am

Quick question about fans. I've been running my tank without one and it
seemed to be OK until this last week. I've been in Japan for 10 days and
when I got back, I noticed the temp has jumped up. The high temperatures
over the past few weeks outside are effecting my tank it appears even
though it's in the basement. Any suggestions on fans? Will any old clip on
fan work? Should I invest in a computer-like fan and build it into my hood?
Do I point it straight down in the water if it's just a temporary solution?
Should I put it in the sump or at the top near my lights? BTW, I have MH
with an open top and open back hood. That's why I haven't had a problem
with heat until now. Maybe this is just a temporary problem but I need to get
my temp down quick because I ordered a bunch of SPS's. The temp right
now is about 84.]]> Tue, 19 Jul 2005 04:39:02 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=7368&PID=71105&title=fan#71105