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Old 01-10-2006, 02:13 PM   #11
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Actually, if it is an open back canopy blowing out will be better than blowing in. When blowing out, there is not any hot air recirculting inside the canopy it is all drawn out and the equal volume of cool outside air gets pulled into the canopy throuhg the open back. So really, blowing in causes more of the heat to stay within the canopy rather than blowing out of it. Either way, the extra air movement will help keep the temperature lower.
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Old 01-10-2006, 02:25 PM   #12
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I'll try to test it both ways to hopefully end the dispute (at least the dispute over my open back design). I'll start this weekend and let you guys know.
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Old 01-10-2006, 08:41 PM   #13
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trust me if its open bac, blowing in is better. Suc in air when you hand is about 4" from your mouth. Doesnt feel that much cooler. then blow lightly, it cools off a lot better. same thing with youre canopy. so yah thats your choice. hope it informed you.
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Old 01-10-2006, 09:11 PM   #14
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The other side of it is to create a tunnel with you hand and blow into it, it actually gets hotter. When you inhale through the same tunnel it cools the air much more. One thing to remember, even with an open back, if there is a wall, it will not flow completely out of the tank and will circulate. That is why I also originally said that you should have one point in and three point out, it guarantees good air flow across the water while removing all of the heat as well.
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Old 01-10-2006, 09:26 PM   #15
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Suc in air when you hand is about 4" from your mouth. Doesnt feel that much cooler. then blow lightly, it cools off a lot better.
That is simply because you are directing the are towards your hand. Air movement is directed to a specific spot.
You need to force air into the canopy from the front somewhere. If it is from top of canopy sides etc is up to you. Having fans on the back assisting in removing air will also help but pushing the air into the canopy from somewhere other than the open back will move more air volume.
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Old 01-11-2006, 01:16 AM   #16
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the air that your blowing is warmed by body. Now if you place the tube the 4" away its cool. But thats the beside the point its that he has a open back meaning you cant really get a strong suction. If it was closed then blow out is way better.
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Old 01-11-2006, 09:39 AM   #17
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Trust me is the wrong thing to say. Try saying in the future, IMO. THats all it really is. Just because you say, dont make it the absolute truth. Other people have ideas and esp experiences that overule your trust me.
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Old 01-11-2006, 01:00 PM   #18
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Trust me is the wrong thing to say. Try saying in the future, IMO. THats all it really is. Just because you say, dont make it the absolute truth. Other people have ideas and esp experiences that overule your trust me.
Well, my first test is with the two top fans blowing out, and the two bottom fans blowing in. As I've stated, my temp has been hitting 84 degrees at the end of the lighting period. I'll tell you guys tomorrow what it reaches. The fans will come on 30 minutes before the lights and stay on for 1 hour after the lights.
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Old 01-11-2006, 05:28 PM   #19
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Good that you keep an open mind. Many ways to do something. Let us know the results
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Old 01-11-2006, 05:33 PM   #20
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Just for info purposes. I have one 12" fan that runs 24/7 and a second that turns on/off with the lights.
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