MH in canopy, fan set up

bcarleton · 03-26-2008, 10:57 PM

Ok, got my 400W MH in today. Have not installed yet. Deciding how to set up cooling fans. Push-pull, exhaust only, etc? I kinda agree with a post I saw on here somewhere. Set up the fans for exhaust only. The fresh air will find its own way in thru all the gaps like the access door and the area on the back of thecanopy where I will try to seal off as best can. I have 2 4" fans at 35cfm, my canopy space is only about 5cf. Any recomendtions?

GSELLERS · 03-26-2008, 11:31 PM

you can have one fan in and one fan out but one fan wil fail due to moisture....if you have both fans blowing in then you should have no problems with premature failure

bcarleton · 03-27-2008, 12:13 AM

Was wondering about that. The fan on my Nova T5 had rusted dead.

corrado007 · 03-27-2008, 12:41 AM

I have 2 fans, one on each side of my canopy and I have them both blowing the hot air out of it. The back of my canopy is open (only egg crate) so cool air is drawn in from the back. It seems to work pretty well. I posted my configuration just to give another idea. I'll be following along to see if anyone has better luck with a different configuration.

03-26-2008, 10:57 PM	#1 (permalink)
bcarleton Fire Coral Join Date: Sep 2007 Location: south mississippi Posts: 69 View Gallery Karma Komment	MH in canopy, fan set up Ok, got my 400W MH in today. Have not installed yet. Deciding how to set up cooling fans. Push-pull, exhaust only, etc? I kinda agree with a post I saw on here somewhere. Set up the fans for exhaust only. The fresh air will find its own way in thru all the gaps like the access door and the area on the back of thecanopy where I will try to seal off as best can. I have 2 4" fans at 35cfm, my canopy space is only about 5cf. Any recomendtions?

03-26-2008, 11:31 PM	#2 (permalink)
GSELLERS Torch coral Join Date: Mar 2008 Location: BRANDON FLORIDA Posts: 537 View Gallery Karma Komment	Re: MH in canopy, fan set up you can have one fan in and one fan out but one fan wil fail due to moisture....if you have both fans blowing in then you should have no problems with premature failure

03-27-2008, 12:13 AM	#3 (permalink)
bcarleton Fire Coral Join Date: Sep 2007 Location: south mississippi Posts: 69 View Gallery Karma Komment	Re: MH in canopy, fan set up Was wondering about that. The fan on my Nova T5 had rusted dead.

03-27-2008, 12:41 AM	#4 (permalink)
corrado007 Plate Coral Join Date: Feb 2007 Location: Sacramento, Ca. Posts: 708 View Gallery Karma Komment	Re: MH in canopy, fan set up I have 2 fans, one on each side of my canopy and I have them both blowing the hot air out of it. The back of my canopy is open (only egg crate) so cool air is drawn in from the back. It seems to work pretty well. I posted my configuration just to give another idea. I'll be following along to see if anyone has better luck with a different configuration. __________________ Justin 90gal mixed reef w/40gal sump/fuge, ATO, NW-200 Skimmer, 2x 250W 10k Reeflux MH & 220W VHO actinics, Koralia #4 & #3, Mag 9.5 return, Aquacontroller jr., LR & LS, and community fish (Yellow Assessor, Bluespot Jawfish, Paired O clowns, Hippo tang, Orchid Dottyback, Yellow Watchman Goby, Neon Goby, Chromis, and a Zebra Dartfish) Here's my 90gal Chronicle (Lots of pictures and DIY)

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