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with the LEDs, what was your height placement from the canopy?

thanks so much for your help, I believe I have a good understanding now of what I have to do it. While I was in the basement going over thing you suggested, I thought of something else as far as exhausting the heat. I have a dryer and its connected with 18ft of plastic ducting and exits outside...

So at the bottom of the box Ill have a regular 12" square hole in the box. On the top is going to have ducting running across from left to right while having a Tee fitting to suck air from the bottom intake and while sucking air from the window (is there any help, or is the 6" 400CFM doing all...

Once again, I appreciate the help. it feels like this part is the most important one of them all. dealing with air and smell. The picture you uploaded is to small and when I blow it up its all pixelated. Can you look at my previous post (#10) and tell me what you think?

I want to get all my passive intakes ducts into a 'fresh air room'. My passive intake holes will be staggered then since tying them in is a waste. but staggering them isn't problem. Im thinking of a 6" inline fan with a controller and 3 6" passive intake holes with 2elbows each to reach the...

Would multiple passive intake holes connecting to one external PVC piping be a waste?

Trust me bro, I hated asking this question. I tried looking at a few other things for a reference but couldn't add everything up with the variables. I know the elbows decrease speed so you need to add 50% for the CFM, you need double the square inch size for a hole, I was going to get a 4"...

By the radiator is a small window that I can open so fresh air can come in. I can extend so duct work maybe with a few more feet for the summer and during the winter shorten the ducting to the radiator and leave the window open (the window opens like a 'V')

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I live in the north east. out side temps can be 15-20 in the winter, basement can be around high 30's low 40's. Summer can be around 90's, basement can be 80's. The box is 6'x4'x5' going to be insulated with foam board, gonna have orca grow film. The outside of the box is going to be painted...

I really appreciate the help. I live in the north east. out side temps can be 15-20 in the winter, basement can be around high 30's low 40's. Summer can be around 90's, basement can be 80's. The box is going to be insulated with foam board, gonna have orca grow film. The outside of the box is...

Hello, ive recently seen reply of yours about CFM and passive intake. I will be building a grow room 6'x4'x5' total of 120 cubic feet. It will have 4 400watt led (200w draw each). room will be in a basement, cold in the winter and hot in the summer (little cooler in the basement). I read the...

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