COMBO SMOKER & GRILL: With a horizontal cooking chamber and a firebox on the side, the smoker is fueled by charcoal and flavored by hardwood splits & chunks, sold separately, to cook low and slow with indirect heat. The 3-burner gas grill is powered by liquid propane gas and runs on a 20-pound propane tank, not included. It has a 36,000 BTU rating, reaches cooking temperatures quickly, delivers high temps and maintains even heat.