Outdoor Great Room Rectangular Crystal Fire Stainless Steel Burner with Glass Fire Gems, 12 by 42-Inch 12" x 42" Rectangular Crystal Fire stainless steel burner with Glass Fire Gems (16lbs) Includes tumbled glass or glass beads with burner Includes hose & regulator, gas valve, metal flex hose, natural gas orifice, electronic piezo Standard use with liquid propane gas, but can be converted to natural gas with included adaptor 80,000 BTU's. Ignition-Push Button. Piezoelectric igniter. Ball valve. Manual control knob can be used to control the height of the flames