Yesterday I fired my large BGE at about 11:30 a.m. with a mix of old & fresh BGE brand lump, filled up to just below the top of the fire box. I then cooked some chicken breasts @ 350°; this took about 20 minutes.[p]I then shut down the dampers to a hair's breadth aperture and let it burn slowly at between 225-250° until 4:00 p.m. when I needed it again to smoke some salmon. For this I stirred in some alder chips and let it run (again at around 250°) until the salmon was cooked. This took until about 5:30 p.m. The salmon will be eaten today.[p]Finally I opened up the dampers and let her rip to about 750° to sear some filet steaks for dinner. Following the (now for me) standard method, I brought it down to 400° over 20 mins while the steaks rested and then cooked them until they were med rare.[p]So the egg was running about 7 hours on a not-very-large load of lump and I cooked three separate dishes. There is still about 1/4 firebox full of charcoal in the thing. Amazing.