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.


I know that a fan on
its own would only recirculate the warm air, but was hoping there would be a
system for our needs?

No.


I saw some air coolers in the argos that had a 12
litre water tank, but wasn't sure if these also required an external air
vent to work?

That's just what you need in a server room...

This isn't a technology problem; it's a physics one. In order to cool
your room, you need to do something with the heat. You either dump it
outside, or use it to evaporate a liquid in the room. Dumping it outside
is the only option.

A good split unit aircon will cost about the same as a single server,
and take less time to set up than a single server takes to install and
configure from scratch.


--
Grunff