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#2
08-24-2009, 09:13 PM
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86cfm is plenty - but don't have one pulling & one pushing... Use a passive air intake (down at the bottom of the fixture) both fans at the high point pulling hot air out; try to ensure you're not restricting the intake (lots of info on how to size an air intake can be found on google).
As for the gas charged shocks - Bet you'd find they're useable, but you might have to play with the moment arm a bit - becomes a trade off between opening enough vs opening/closing easily... Betcha bandit could make you a pretty drawing to show what I'm trying to say...
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#3
08-24-2009, 09:33 PM
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I got my fans from Memory Express, if my memory serves they are running 37cfm at 18 db. I love how quiet they are, I have 2 pushing and 2 pulling from left to right, they work great and you cannot hear them.
Shane
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#4
08-24-2009, 10:35 PM
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Just so everyone's on the same page here, 2 fans in a push pull config will only push the fan rating. ie, 2 50cfm fans in a push pull, will only move 50cfm. Now, put them both the same way, Pulling air, or pushing, with adequate inlet/exhaust. They will now combine to equal 100cfm
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Dan Pesonen Umm, a tank or 5
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#5
08-24-2009, 11:39 PM
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Good point on the pulling/pushing. Never thought of that. The canopy is going to be open top and open back, so there shouldn't be any flow restriction.
I understand the lever action of the gas shock will make 265 lbs not as bad as it sounds, but I still think it will be a lot for a 40ish lb canopy top...? I'm thinking I'm going to rip my Degenbao fixture apart and use the "guts" to retrofit everything onto a piece of plywood, then the plywood will lift up and down with the shocks (or something). I might just skip the shocks, it won't be that heavy. I could put the fans right in the top of the plywood pushing air out. Then the actual canopy "wrap" will be removable from the front, just side it off like the AGA ones. That's the best idea I can come up with keeping ease of assembly in mind.
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