mike-s wrote:
Blowing into the fins, because then the airflow across the fins is maximized. For a shelf, depends on which one. Blow down if on an upper shelf, blow up if on a lower shelf. The idea is to push the cold air down, or the warmer air up. Fans blow in a specific direction much more than they suck from a direction.
But, simply moving the air around is 90 percent of it.
Well, not exactly correct. Fact- air volume into fan = air volume out of fan. Don't confuse velocity with volume.
Agreed "But, simply moving the air around is 90 percent of it."