I am still looking for a suggestion on my next project. Before I purchase another 315W I want to make sure it will not be a problem in the tent. Sorry if I have posted these pics in the past but this is the best way to explain my intentions.
I am considering a Stacked (2 - 315W) Vertical 5 Plant Scree grow. I have Vertical experience with a single 400W HPS. Right now I have one 315 and planned on doing a stacked grow with the 315 as the top light and a 400W HPS as the lower light. I believe I can get a good deal on another 315 and if I can I will use two 315's.
I am in a 4x4 tent 7' tall, 6" Max-Fan, three speed, 291 to 420 CFM, inline suction fan beyond the 6" Phrish filter, that is exhausted into the garage, so I believe I have plenty of air movement through the tent. I also have an AC if needed in the room I draw my intake air from. From the lights to the screen I have minimum of 16" and a max of 22". My ballast will be outside the tent so the only heat will come from the lamps themselves. Growing in coco 2 gallon Smart Pots with automated drip irrig. using the BlackHoles emitter.
My question is:
Will I have a heat problem with the 2 315W lamps in the tent?
This first photo is of the light stand for the lower light, it is set up for the 400W at present but I can change that to the 315 if I go that direction. If you note the red arrows, I can switch the PVC pipe out to change the height of the lamp. This are 6" rizers in the unit now, can go up to 18", but don't think I will ever need to go over 12".
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These are the frames without the net on them, 20 x 40 inch frame, overall height is 54". The 315W that will hang is not in this picture but will hang directly above the bottom lamp.
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Pic with the net attached. Note that each individual screen is movable as I stated above, from 16" to 22" from the bulbs.
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The fan is not centered on the screen in this pic, but you get the idea.
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Thanks in advance!
GR