First trial run with the Vortex from Smoke Daddy on the gas grill. Cold smoked 2 ribeye steaks for a little over an hour then grilled along with a few lobster tails - added a few veggies and presto, Valentines Day dinner. Vortex lit easily and stayed burning to the end. Burned from 2 directions using the small section - lasted about 2 hours. Definitely going to try with a longer smoke next time - the larger ring is suppose to burn up to 10 hours.