Help with window ventilation - dampers

Rickety Rocket · Jun 19, 2012

I'm trying to set up my grow room and have some questions. Currently have a 10" max can fan with 10" phresh filter for the active exhaust and a 12 x 24 louver for the passive intake. Do I need dampers at both the intake and exhaust? What kind of dampers do i use; for example, automated dampers normally closed, automated dampers normally open, or just standard dampers? Another question i have is do i need to use ducting on the exhaust or can i just have the exhaust fan attached to the window and the filter with no ducting in between? I'm in need advice asap so please if you're viewing this thread help me out!! thanks

superstoner1 · Jun 20, 2012

get a springloaded damper and install on exhaust near where it leaves the room. this will stop outside air and pests from getting in. you would be better using ducting. mount the fan using bungee coards to neutralize vibration noise.

Rickety Rocket · Jun 20, 2012

How is the springloaded different from a standard damper? what about the intake? won't the smell leak out?

Rickety Rocket · Jun 20, 2012

can anyone else possibly help out. hard to believe noone has any experience with dampers. wtf!!??

Smolenja10 · Jun 21, 2012

Do this: Filter--Fan--Short amount of ducting--Damper.

You dont need any at the intake. Home Depot sells spring loaded metal dampers; at ten inches, im guessing theyre gonna be around 20-25 dollars a piece. They also have plastic ones with nothing more than plastic shutter flaps; Again, at ten inches, im guessing around 7 dollars.

Some prefer the better spring loaded dampers, but ive used the latter for months (rain, wind, snow, heat), no problems.

Help with window ventilation - dampers

Rickety Rocket

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superstoner1

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Rickety Rocket

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Rickety Rocket

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Smolenja10

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