How about a chimney on the back of the fridge?

[AC_Hacker]

Originally Posted by Phantom

Piwoslaw have you thought about replacing the plastic cap with a metal one? If it was replaced with a metal dish and had some thermal compound for computer heat sinks it would allow it to passively cool quicker, or even adding an old spare CPU heat sink to cool it faster.

If I understand Piwoslaw correctly, the plastic cap is just a catch bowl to hold condensed water that drains from the refrigerator compartment. It holds the water and the heat rising off the compressor evaporates the water.

-AC_Hacker