Running outside supply fan to 5' x 7' closed grow room?

Indoor Growing Lighting
1

Do i need to run supply fan pulling outside air constantly along with return fan ? Or only when lights are on ?

2

Best to have it run when lights on and off. If u have a fan pulling out of the tent there is no need for fan to push air into tent. The exhaust fan will pull the fresh air in on its own

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3

Thanks Liljoe, my room is air tight and to hot to run supply fan during daylight hours !! Would running exhaust fan help this room when supply fan isn’t running ?

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4

I run my fans 24/7 when I have bigger plants. When seedlings I don’t use them all at the same time.

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5

Yes, exhaust fan will pull as much air into tent as u r pullin out. My opinion is intake fan a waste if running exhaust fan

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6

@big55 Is your grow room still running hot?

7

No, it’s doing great !! Thanks

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