This current brewtree evolved from a portable unit. I designed it to be gravity fed from HLT to fermenter. I designed the parts and a friend fabed them up. The first feature is the modularity to move the jet burner from any vessel while lit with a gloved hand. It also has a hopback, water filter, oxygenator and reverse chiller- all home built. The latest addition is a RIMS / pump system with the heat exchanger in the HLT. This has served me well but I am in the process of designing and building a Brutus 10 so I can do more with less hassle on brew day out of my garage. (Winters in Pittsburgh really suck)
http://www.neithercorp.us/images/brew/HERMS009.jpg
http://www.neithercorp.us/images/brew/HERMS017.jpg
Nice!