DIY Exhaust Fan for under 20$

If you want to move more air you should fit a tube -maybe 6-8" long AROUND the fan cage extending towards the middle inside the box. Looks like Quaker oats or those Nesquick 72 serving tubes would work perfectly.

I think this would work for me, i would tweek it a bit but great idea

i'de probably have the fans facing the other way and on the outlet side of the exhaust. the ducting has to be large, or else your just wasting energy.

Weedasaurus said:

i'de probably have the fans facing the other way and on the outlet side of the exhaust. the ducting has to be large, or else your just wasting energy.

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the shorter the run the better too.for better airflow and energy efficiency.

I got 2 pc fans, and some dryer ducting. I put a fan in each end of the ducting, and a carbon filter at the end with both fans pushing air to it. Works great, and temps are 20 degrees cooler than without it.( I'm using a rubbermaid tote with 3 CFLs)