The Skinny: Cove 42 round concrete outdoor fire pit bowl. Bring the warmth and ambience to your outdoor space with this stylish fire pit bowl. Constructed from Supercast concrete with cover when not in use. Supercast is a proprietary blend of fiberglass and concrete to provide durability. 30 Crystal Fire Plus Burner. Spark ignition and available in either natural or liquid propane gas. 105,000 BTU heat rating. Includes clear tempered glass gems.. UL approved. Limited lifetime warranty on stainless steel burner. One year warranty on finish and