Id seen that some of the popular fermenter manufacturers make relatively costly drop-in immersion chilling setups for their conical fermenters. I knew I had to attempt to do this, so I began researching how I could create an immersion chilling system for my fermenter. Im by no means a handy man, but I was able to put together a very nice custom system that actually works amazingly well, and was much less costly than an off-the-shelf system.