2x1000 watt cooling tubes

Think space and room size when thinking cooling and fan size. Obviously the bigger wattage equals more heat but if you have a room that is less than 240 cubic feet which I'm sure you do, that fan will be fine to clear the warm air as long as you have a fresh supply of cool air coming in as well.

First Journal - Mid Grow
 
The fan should work well enough depending on duct length and bends etc.

I use a 180 Cfm 13v 2.25A hvac fan to cool two 600 hps with 25 feet of 6 inch flex duct , with five 90 degree bends.

The exhaust air is 100*F with 1200w with the Fan set at 10 volts or 60% speed it starts running @ 7 volts with a max of 13 volts.

And the cooltubes glass stays cool enough to touch

Since a duct fan is made to go inline if you use one plumb it in the middle of both ends so the push and pull are even
 
That's what I was wondering is if I should have the duct booster in middle thank you for the information

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