Hello strangers! Seems I drifted away for a while. Just in the testing of a long awaited idea at a cheap DIY fermentation chiller. Water cooler, recirculating through a coil in the keggle. This is going to be my first attempt at also fermenting in my kettle, I have read mixed reviews but want to give it a go. Managed to get the cooler from work for free, picked up another unit that had the hot water tank (fitted into the void of the water cooler) for 30 bucks, and then the SS coil ran me 52. Everything else I had laying around left over from other projects. FYI, the copper is just for testing, SS is on the way. So far been able to heat up to 80+ deg F (didn't go higher as I won't need to, but could go a lot more easily) Been able to cool to 40 deg F without any additional help. However my ambient temp is about 60 deg F. In summer, I am hoping to keep fermentation temps ok, but possibly use a cooler full of ice to assist any "crash cooling" I might do. Thoughts and opinions welcome!