On Tue, 11 Oct 2005 21:25:05 +0100, "ste" wrote:

Are there any air coolers out there which can keep the temperature down
within an enclosed space without an external air vent?

No (unless they have a water circuit which is vented in turn).

It's a piece of classical thermodynamics that you can't make a "powered
heatsink". No matter what you put in the black box, or how much energy
you feed it, you can't make heat disappear, you can only move it to
somewhere else.