Stacking Fans ??

[jaze]

This question ought to land me in the "Stupid question Hall of Fame".

If I were to 'stack' 2 80mm case fans on top of each other, would It increase the CFM of air moved?

-JaZe

[Diggrr]

Yes, it would increase, but not by double. Leaving a gap between them by say, 1/2 inch would keep them from being too much noisier.

Both fans, even if identical, won't run at exactly the same speed. Fan 1 would push fan 2, fan 2 speeds up until it drags on fan 1. They may oscillate up and down in speed slightly.

However, this doesn't mean you shouldn't try it. More air is more air.

[klosters64a]

'Fraid stacking is a waste of time and money. Unless--the fans rotate in opposite directions. Even then, the boost in airflow won't be worth writing home about.

[Mike K]

I wonder how many times this question has been brought up.

[ThePunkGeek]

as many people will tell you there is never a stupid question just stupid answers.

but i seen someone already replyed to this post

[jbell]

Originally posted by m_mike_k
I wonder how many times this question has been brought up.


I have seen it posted a few times... and many have tried it - but it is all based on what is it worth to you... I personally don't see the outcome worth the effort to do it.