The Piazza 30 in. Gas Fire Column - Sand seem s to draw fire directly from the ground on which it stands. The column is cast in EnviroStone, an earth-friendly stone and resin composite that looks exactly like solid rock, and topped with a glass ring that contains the raging fire. Powered by a standard 1 lb. propane tank, a stainless steel burner sends flames through a pile of attractive lava rock. It"s got push-button ignition and easy, safe controls, so all the power"s at your fingertips. * EnviroStone fire column with glass-rimmed firebowl * Antique bronze weatherproof finish * Stainless burner, electronic ignition, and easy controls * Heat output: 15,000 BTUs * Uses standard 1 lb. propane tank (not included) * Dimensions: 9.5 diam. x 29.5H inches