On my big grill it took 1/2 a bag of charcoal to grill a couple of puny little steaks for my wife and me. Now I get better results with about 10 chunks, a negligible effect on global warming, perhaps, but way cheaper. Also tried smoking 3 turkey legs with good results, just to see if it could be done on such a small grill. Dropped a few little pieces of pin cherry branches over the lump (on one side) and kept the turkey over a pan on the other side.