Firegear FPB-33RBS31MT-N MT SS Round Drop-In NG Fire Pit Burner System w/ 33" Pan 175K BTU - This fire pit burner system has a 33" pan and 31" burner, both constructed of heavy duty stainless steel. It features a match throw (MT) ignition that operates by lighting a match or butane lighter. This system is easy to use, and with burners you can achieve high BTU's and big flames. It is for use with natural gas, however, LP conversion kit OAS-LPK26 may be purchased separately.