closed loop cooling on light mover

How many cfm's do i need to cool 600w hps? I plan on running 12 inch inlet ducting then split it to the hoods on the light bar using 6 inch ducting. Then the same on the exhaust multiple six inch ducts to the 12 in to a 2050 cfm fan pulling air. The inlet will have a air filter all air will come from outside and exhaust back outside no air will be used from the room to cool the lights. There are 10 600w hps bulbs in 5 growzilla hoods

The other fan option is a 2905cfm 14 in fan and ducting.

http://botanical.com/hydro/air/calculating_fan_requirements.html
Check this out. I believe this is what you are looking for.

I'm looking for a solution that is not exchanging the air in the room . I want to draw air in from an external source in through ducting through sealed hoods out of hoods back into ducting through a wall and out a fan that is sucking air through all of this. Most people are talking about air exchange to keep the room cool i will exchange air at minimal intervals i use co2 and ac to cool the room but could get a boost for the ac from the lights being air cooled , so this is why i need to know how many cfm's to cool a 600 without room air exchange entering the picture. Any help would be appreciated. I used 1000s before and all ac no air cooling trying something diferent to use less power.

Any advice on where to fey help on this issue?

Another option is to scrap the venting and get a proper ac. If your cooling matches your heat, with adequate airflow, you don't need to vent. That would be a better option in your case.

If you have invested enough to get a 6000 watt setup, why not buy a small central ac unit. You could call an ac company and work out the btu requirements. I'm sure they would be capable.

You want to cool 10-600 watters?

If its a straight shot the bigger one might work. Tough call, intake temps coming in the hoods could play a role too.

2000+ cfms across 6kw of lights, straight through, PURE BAIT FOR THE COPTERS, YOU WILL GET CAUGHT. Too much heat firing striaght out your yard.

Split your flower room in 2 and run 3kw opposite each other. Much easier to manange the heat of 3 kw, also wont scare the electric company.

I have a 36,000 Btu mini split to cool the room would it cool enough for no air cooling on the lights? I do appreciate the help thanx. Intake temps are 70°F at most.

I'm no ac specialist. You need to find how much heat your units produce, then call a specialist. Come up with a reason if it makes you feel better. Other than that, trial and error. Get a lot of fans. You aren't going to use CO2?

Using CO2 generator which will also produce heat when the burners are on.

MrMeanGreen said:

2000+ cfms across 6kw of lights, straight through, PURE BAIT FOR THE COPTERS, YOU WILL GET CAUGHT. Too much heat firing striaght out your yard.

Split your flower room in 2 and run 3kw opposite each other. Much easier to manange the heat of 3 kw, also wont scare the electric company.

Click to expand...

I was thinking about cooling the exhaust air from the hoods with a water chilled heat exchanger to help with heat signature.

Looks like i will be changing hoods and going with the max tube expanded 24". Which is 31.5" long cool tube and has a hood. I will be converting them over to hold 2 bulbs. The width and better air flow is why i will make the change.

don't know if this will show up..

Guess it worked old light mover pic 20ft wide holds 5 hoods.