Here is the preliminary fabrication of the HERMS coil.Thanks man. Having a HERMS put in the HLT so it can serve double duty for keeping the mash temp and cooling the wort. If all goes well with it I'll probably sell my Thermometer.
This will be mounted inside the Blichmann BoilerMaker with fittings mounted through the kettle wall and Stay-Brite #8 soldered in place. QDs will be placed on the kettle fittings to allow for easy setup changes. The Herms coil is 25' of 1/2" copper fabricated with flare fittings to eliminate any catch points within the unit.