I mounted one inside my old 8 gal electric brew kettle. I wanted it to be a single vessel BIAB setup for quick test batches. It is just a 20' copper coil from Home Depot. I can also use it as a HERMS vessel or HLT if I ever wanted to. It looks exactly like a mounted HERMS coil in an HLT. There are many pics of those if you do a quick search.