SPC-21PHTSA The Ultimate Outdoor Heat For Picnics, Camping Trips, Patios, Porches And Backyard BBQ's! Heats A 4 To 7 Foot Circle For Up To 2 Hours On One 16.4 Oz. Cylinder (On Low) 10 - 15,000 Btu Clean Burning Piezo Electric Ignitor Adjustable Heat Output Compact & Lightweight ODS Safety Pilot Automatic Safety Tip-Over Device Stainless Steel Burner and Emiter Screen Weighted Base 22" Rust-Free Aluminum Reflector Operates On A 16.4 Oz. (1 lb.) Propane Cylinder (Propane Cylinder Not Included) No Electricity Required For Outdoor Use Only UL US/Canada Tested & Approved 1 Year Limited Warranty