Lava Heat Italia - AMAZON-139 - KD Patio Heater - Stainless Steel Finish - Natural Gas Configuration Constructed of solid durable Stainless Steel 360-degree distribution of heat in a 5 ft. radius generating an impressive 56,000 BTUs Weather resistant 4 ft. Borosilicate glass tube is capable of withstanding extremely high temperatures Uses Natural Gas which includes a free 10-foot quick connect gas line (100 Value) Solid-frame commercial-grade, arrives fully assembled in its nearly 8-foot box