thats what i'm talking about that would workYea bro, I've got a 250cfm inline fan I bought for a 400w HID, and the light laughs at it, almost no help at all... I'm going to hook one of these up to it as well and see what difference the both of them make.
You need at least one of these to do that properly.... I'd do it with no less than this knowing what I now know.
Here is some useful information I picked up from a grow book by Gorge Cervantes
" Vent fans are usually attached to ducting to direct air out of the grow room. Flexible ducting is easier to use than rigid ducting. Keep the ducting straight and short. Long runs of ducting cause less air to be expelled and at a slower rate. When ducting turns more than 30 degrees, air movement declines and less air exits the other end. Ducting at no angle moves the most air. Ducting at a 90 degree angle moves the least air."
I saw in your first picture that the exit exhaust Ducting is at a straight 90 degree turn. If I had to guess your fan is not moving any air at all, or very little so your 1000w HPS bulb is getting some serious heat buildup. I hops this helped.
Peace and positive energy to you.
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im pulling the air out of the room (the top of the fan is open) and exaust it through the floor to under the house
Ok so i have a 500 cfm inline fan hooked up to my cool tube and it seems like its doing next to nothing shouldnt this much air flow be enough to stop radiant heat from the cool tube??
A cool can NOT stop radiant heat. Radiant heat the the heat produced by the IR light. That light travels through the cool tube and into the grow area.
Just think of the Sun. Between it and Earth, there is no air, but boy does this planet heat up from the Sun.
You need to cool the room too.
You are WRONG!!! The reason radiant heat is transfered from the sun to earth is because there is no AIR and nothing to impede its travel. If you push enough air the radiant heat has no option but to heat the air that is passing by. Radiant heat does not pass freely through gases solids or liquids. but can through space.