Any using a glycol chiller for their fermetner and anyone build one? The Flex + is too big to fit into my fermenting fridge so it is time for something else. The commercial glycol chillers are a bit more than I would like to spend so I am taking apart an old 12KBTU window AC unit and converting that into a glycol chiller. I should have most of the rough work on it done this weekend and then just have to wait for the pumps and glycol. Other than the common parts for the Flex I would need with a commercial unit I should have about 100-150 into this and that is a LOT better than the 700+ to buy one.