Outdoor GreatRoom Company D.I.Y. 12" x 24" Rectangular Crystal Fire Pit Burner 12" x 24" Rectangular Fire Pit Burner - comes with glass fire gems &amp; electronic piezo (BURNER ONLY). (LP or NG) For outdoor use Trouble Free Electronic Piezo Comes ready to runs on LP Gas, but can be converted to NG (with adaptor). 60,000 BTU's