AC UNITS HAVE REFRIGERNANT IN THEM. REFRIGERANT IS BAD FOR THE ENVIRONMENT AND CAN BE BAD FOR YOU IF INHALED. UNDER NO CIRCUMSTANCE SHOULD YOU VENT THE REFRIGERANT. DO THESE MODIFICATIONS AT YOUR OWN RISK.
IF YOU AREN'T COMFORTABLE WORKING WITH LIVE ELECTRONICS THIS PROJECT IS PROBABLY NOT FOR YOU. YOU NEED TO OPEN AN AC UNIT AND MESS WITH ITS INTERNAL WIRING WHICH IS ENOUGH TO KILL YOU IF DONE IMPROPERLY. DO SO AT YOUR OWN RISK.
THIS ARTICLE TALKS ABOUT USING GLYCOL. DO NOT USE ANY GLYCOL THAT IS NOT RATED FOR FOOD CONTACT. AUTOMOTIVE ANTI-FREEZE IS EXTRMELY TOXIC AND WILL KILL YOU. FOOD GRADE ANTI-FREEZE IS SIGNIFIGANTLY MORE EXPENSIVE BUT CHEAPER THAN A FUNERAL. READ THE LABELING AND MAKE SURE WHAT YOU ARE USING IS FOOD GRADE. FOOD GRADE ANTI-FREEZE DOES NOT MEAN YOU CAN DRINK IT, IT MEANS IT WILL NOT KILL YOU SHOULD YOU HAPPEN TO DRINK IT.
DIY Glycol ChillerItems required
- AC unit
- Cooler or container larger than AC evaporator (coleman coolers work well)
- Temperature controller that has cooling function x 2 ()
- Basic screw drivers, pliers
- Food Grade Propylene Glycol (50/50 mixed with distilled water)
- Pump and tubing (pump tye and size will depend on what you plan to do with your chiller)
If you are like me, you got into home brewing to make good beer. Doing it cheaply was a secondary point, but still a necessity for many of us - which makes the commercial chillers out of reach. This...
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Tags for this post: glycol, chiller, diy, project