In my Bar B Chef I go thru the 8 lbs or so of lump in about 4 hours like everyone else however, my last mod was to put aluminum foil around the firebox doors and cooking chamber and it acts like a gasket and although it still leaks alittle it did give me a slightly longer more efficient burn.
Backwoods Party w/upgrades & Guru
Lg. Big Green Egg born 6/23/08 w/custom Walnut handle from Marty Leach
Weber OTG Walnut handle from Marty Leach
KCBS #20486,FBA certified Master judge,IMBAS (MOINK BALL) Certified
Like what you do. Do what you like.