Do you point the fans you use for circulation in the tent up or down in the tent? I am not talking about the exhaust fan. I have a 32x32 tent with the 240w kingbrite quantum board led and the driver for the quantum board is outside the tent and the temperature in the tent is like 81 - 83f on there. I have 4 clip on fans in the tent with 2 pointing up and 2 pointing down though I am wondering if the fans pointing down are moving hot air down from the led to the plants and I wonder if having the fans pointing up instead would help with temperature in the tent. I want really good air flow to prevent the mold on there. Would you recommend having all the fans pointing up in the tent on there?
Do you point your fans up or down in your tent?
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Mustang92
Your eyes look glazed, have you been eating donuts
I usually adjust my fan angle until i see all plant leaves move a little, mostly watching ones in far corner opposite to fan. I like the fan to move air and the plants because i believe it makes plants stronger.
In my view, it really doesn't matter much where fans point, as long as there is good enough air movement at all points at plant and pot level. Direction up/down doesn't matter much, other than the air flow will be faster, be more intense where the fan is blowing. Air being pushed up or down just means that much air somewhere else is being pushed up/down/away. Adding some turbulance is good, such as add an oscillating fan.
In my small tent, I have a 9-inch Honeywell whole room turbo fan (came on a pedistal/stand) on low or medium, above the plant canopy and pointing at the far top corner; and a cheap desk oscillating fan angled down a little and blowing across the top of the canopy. Constant tent-wide slow air flow plus the plants jiggling every 7-8 seconds.
In my small tent, I have a 9-inch Honeywell whole room turbo fan (came on a pedistal/stand) on low or medium, above the plant canopy and pointing at the far top corner; and a cheap desk oscillating fan angled down a little and blowing across the top of the canopy. Constant tent-wide slow air flow plus the plants jiggling every 7-8 seconds.
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More internal air circulation is not going to reduce the tent air temperature, just make it more consistent throughout the tent.
Perhaps, get advice from those using quantum boards, with them flat enough that in a small tent I'd be concerned about the air circulation being restricted, air temps above the boards rising, etc. It might even be good to have a fan aimed at the boards.
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Do you have an exhaust fan in your tent? If so, pay attention the ambient room/ house temp as well. This will affect your internal tent temps too.
Sleeper143
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I have an oscillating fan blowing over the top of my plants and a static fan on the floor of my tent, facing the ceiling, blowing up under the plants
Mustang92
Your eyes look glazed, have you been eating donuts
You might get lucky if light is heat source and you aim fan at it to move air and open up top vents on tent to help hot air out(make sure lights off ain't a problem with light leaks in vents). if your running 20/4 light schedule maybe extent light off may help.
I do as DirtDiggler said and use exhaust fan and ambient room/ house temp to control my tents.
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