cooloing ny 6000 watts

Maybe a 12" or 10", but not 8" for 6kw.

what if i add a booster fan after the first 3?

You need solid, smooth ducting and a good fan.

depending on the type of hoods you use it may "work" my vented hoods slow down air flow really bad no matter the ducting i use. i have a 435cfm fan on full bore to cool 2 600s thru about 30' of 6" duct work.....

inline liquid heat exchangers... not cheap but effective. u will need a pump tho and either a fan&radiator or a resevoir to cool the water once it leaves the exchange. id go with the radiator

whatapothead said:

depending on the type of hoods you use it may "work" my vented hoods slow down air flow really bad no matter the ducting i use. i have a 435cfm fan on full bore to cool 2 600s thru about 30' of 6" duct work.....

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Are you using flex duct?

i saw this max fan, its 1000 cfm. it can cool 8 1000's you might need to consiter using something like that. if its still too hot think about using a light mover.

Are you using flex duct? yes i was.

i use a 10" max fan to cool 5 1000 in a 8 X 12 room and my temps dont go over 86 6"above canopy but im also suckin threw my carbon filter with a seperate fan blowin fresh air into room
also you might want to consider building a box to seperate the air going threw your hoods heres a pic of mine hope this helps

seaofgreenpatientgroup said:

i saw this max fan, its 1000 cfm. it can cool 8 1000's you might need to consiter using something like that. if its still too hot think about using a light mover.

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