Quick question about air cooled reflectors...

[J. Greenstein]

I'm about to order up some stuff, with regards to the air cooled hoods I see there is the option of 4", 6", and 8" vents...I'm gonna run 3 x 1k. Is there any reason not to go 8"? All I can guess is that the downsides are that you have to deal with larger exhaust hole coming out your room and a couple extra bucks per hood? Am I missing something? Any reason to go less than 8"? I would think the 8" will be most efficiant at moving warm air out.

 

[Deviant420]

As long as you have a matching fan, 8" is the way to go. I recently got a 8" exhaust system linked to 8" cooled hoods. From what I've read, the 8" system can cool up to 4 1000w's. In your case, nice to have room for expansion i.e. another 1000w-er.

 

[TGT]

Go with the 8 inch. I remember when a while back when they didn't offer an 8 inch, only 4 and 6. It is so much better at cooling and like J. Greenstein said, it's good to have for expansion if needed. I don't think they cost any different than the others unless stores are trying to liquidate old stock because no one else wants the 4\s and 6's as much as before.

TGT

 

[J. Greenstein]

Thanks for the 411 peeps...defiantely gotta go 8" then, the supplier I'm goin with I think charges about $10 more for the 8's.

 

[MrMortakis$moot]

what about one 1000w in a 6" hood with a 6" fan pulling up to 530cfm's? or a 8" hood reduced to the 6" fan? thanks!

 

[Skipload]

Go big, you can down size if you desire. Going smaller may not work out, then your stuck.

MrMortakis- Inline fans pull better than they push air. As long as your ducting run isn't extremely long or bending figure eights around the world, a 6" fan will work for either scenario.

 

[mister420green]

Definitely go with the larger diameter. They will cool off a lot faster and easier. You could even attach a 10" with a reducer and get a beautiful pull.