6" vortex enough to cool 4 vertical 600's?

I am buying some inline fans tomorrow and not sure if i can get away with a 6" vortex for my cooling needs.

I have 2 vertical stacks... each stack has 2 600 watt bulbs in 6" cool tubes. I plan to push air through each vertical stack.


6"vortex > 6"wye split airflow to 2 vertical hung 1200w stacks > 6"wye exhaust to above floor.


I assume because the cooltubes are hung vertically it should assist with the cooling?

I plan to use insulated ducting, not sure if that helps with cooling, doing it for sound control.

I will be pulling air from a basement were temps range in the low to high 60's all year long.

I really was hoping to be able to get away with just a 6" because the wattage really jumps up if i where to use an 8" vortex. wattage is a concern because I am doing multiples of the above setup. the 6" vortex is only 100 watts.

Is upgrading to an 8" really worth it. I assume it would be is i were to upgrade to 8" cool tubes?

the flower room will be 22x8x8. for now I plan to have a passive intake... Later plan to seal it up and run co2 but thats not until everything is dialed in, which may take some time. Anyone care to advise what size can filter and exhuast i should run in this size room? also how many 4"-6" intake holes I would have to make.


any insight to the above questions is much appreciated.

Come on no opinions... probably gonna just end up with the 6" vortex fans.

I have a 12" and it's only 280watts with about 1000cfm. I have it hooked up to two 1000w watters in a room similar size (bit overkill at the moment) and it will actually drop the room temp by about 3-4 degrees. I had to add a thermostat to keep the room at a considerable temp, once summer hit that may change.

I seen a chart somewhere for cfm to lights but i can't seem to find it or recall what it said. Maybe tomorrow as I'm to tired now.
But I would recommend pulling air and not pushing. Easier to pull(suck) it out, then push it through.

the reason i plan to push through the cooltubes is because i am running a passive intake system in the room. If i were to suck air i would also be pulling odors outside the room.

guy at my hydro shop said 6-8" fan is the norm for my setup. He a 21 year old kid though... i have my doubts in his opinions.

Seriously I'd go bigger than what you think you need. Once you add in things like a carbon filter, length of the run, couplers, and wye ducts you reduce the initial flow rate by a considerable amount.

If your main concern is the electricity you can cut it down with a thermostat, not to mention you can cover more lights per fan so less total watts in the long run.

My room stays about 65-70F during most of the year (north side of the house in the shade). If I cut on both lights with the fan running continuous the room temp dips to around 60-65F within about 20mins. Now with a thermostat set at 75-80F it only runs for maybe 5-10mins every half hour or so. Just using this for an example 280watts @ 4hrs cycled is about half the power consumption of running 100watts continuous.

280w / 1000kwh = (0.28 * (240mins / 60mins)) = 1.12kwh/day
100w / 1000kwh = (0.10 * 24hrs) = 2.4kwh/day

If we doubled my usage which may be the case come summer it still works out to about the same amount of power consumed as the 100watt. But if I had the smaller fan come summer I might be looking at running the AC or possibly having to upgrade the fan anyway.