Dont buy a chiller ... use a heat exchenger

[banditpowdercoat]

Possibly not so good for those of us on Septic systems either. Would be introducing a lot of extra water on the system. But I have toyed around with the idea quite a bit. Even using a old car rad with 12v fan as a outside heat exchanger. But what fluid to use in the cooling loop, that won't freeze? Car antifreeze would be devastating if a leak occured.