Hey All -
I've never seen nor heard of anything like this, so I need to call in the big guns.
I just brewed by fourth batch ... 8-gallon stainless kettle with thermometer, and 1/2" ball valve over an sp10 bayou burner.
I used:
18 lbs grain
6 oz hops, 1 oz fwh - the rest at 20 mins or later...