DIY Chiller from dehumidifier

[norskfisk]

Hi folks,

I make my own aquarium chillers from dehumidifiers. For most aquarists, building a chiller isn't worth considering, but in case you are interested here is an article I wrote about it. Some pictures from the article attached.

 

[billdogg]

picture number 3 clearly shows copper tubing, a bigtime no-no for any reef. How do you get around that issue?

self edit - I think I got it figured out - refrigerant goes in the tubing, the stainless (or titanium?) goes in the water.

duh.