Just a quick FYI to anyone that owns the Blichmann 55 Gallon BoilerMaker - they just released an extension that can be attached to the 55 Gallon kettle. This extension turns the 1BBL kettle into a 2BBL kettle, holding a total of 100 gallons. Comes with a sight gauge, gasket, and removal tool. Check out how it looks here
(new pictures coming soon).