Lava Heat Italia - AMAZON-104 - Capri Patio Heater - Stainless Steel Finish - Propane Configuration Constructed of solid durable Stainless Steel 360-degree distribution of heat in a 5 ft. radius generating an impressive 42,000 BTUs Weather resistant 4 ft. Borosilicate glass tube is capable of withstanding extremely high temperatures Can be used for up to 12 hours with a 20 lb. propane tank CSA Certified heater has Lava Heat Italia's signature Tilt Switch Auto-Shutoff for total safety