What size fan do I need to cool my cabinet?

What size fan do I need to cool my cabinet?

There are a number of things to consider here, but the main considerations are the size of the cabinet, and how many hot devices will be in the cabinet. 

First you need to understand that you don’t need to turn your cabinet into a wind tunnel!  Gently moving air through and out of the cabinet is all you really need to keep the hot stagnant air away from your expensive electronics.

General sizing:

Single 80mm fan                     1 component up to 3 cubic feet

Dual 80mm fans                     1-2 components up to 6 cubic feet (no shelves)

Single 92mm fan                     1-2 components up to 6 cubic feet (no shelves)

Single 120mm fan                   1-3 components up to 10 cubic feet (1 shelve)

Dual 120mm fan                     2-4 components up to 15 cubic feet (2-3 shelves)

Triple 120mm fan kit              2-6 components up to 20 cubic feet (2-4 shelves)

The above sizing is just a general rule of thumb and it assumes you have adequate intake air, and ventilation between shelving.  It is always a good idea to put the hottest components on the top shelves closet to the exhaust fans.