On Sun, 20 Jul 2008 03:14:32 +0000, in message

Larry wrote:

I don't understand how they get 274 watts of cooling with only 168 watts
input. Must be physics magic!

It's not magic. You should review your thermodynamics for cooling
cycles. The only power input required for cooling is to overcome
inefficiencies in heat transport, hence coefficients of performance
(not efficiencies) considerably larger than 1.

A COP of about 1.8 suggests a bad design / installation.

If you don't understand it, you should either ask for advice or read
the specs and instructions.

Ryk