Interesting link about Hacking dehumidifiers
 

I didn't read much of it. But I did enjoy looking at a bunch of hacking pictures.
Some of the tools and methods used looked interesting to me anyways..
Be aware there are a lot of pictures on one page..

DIY aquarium Chiller from modified dehumidifier or air conditioner

Awesome find, xringer. A definite read for the inexperienced, would be hacker or tinkerer considering modifying an existing prefab unit. Chock full of pics.

A pic I especially liked was a cycle diagram:
http://www.jonolavsakvarium.com/eng_.../chiller03.jpg

I see he's using this to cool aquarium water. I suppose if you had a source of running water/drain you could almost use this as a geothermal system???