I just built a glycol chiller out of a 12,000 BTU air conditioner and so far it works great with water. My questions are, aside from the risk of contamination and poisoning do I need to use food grade glycol or will antifreeze work? If food grade do I need to use one with an inhibitor? I know silicone tubing is preferred but what other/cheaper flexible tubing will work? Lastly, what exactly is the purpose for the compressor delay on the controller and what should I set it at?
Thanks, Mike
Thanks, Mike