I just recently ordered the new Hydrogen water cooled CO2 generator from Hydro Innovations... after seeing the footage on YouTube I could not resist. Now that it is here, the installation is a bit challenging - there are numerous installation options available but they all present pros and cons.

Anybody with first hand experience in the real world?

Before I go the chiller route, I would love to hear of success people have had with 55 gallon resi's or smaller - with passive cooling.

I can't be the first one to have one of these things, can I? haha