Outdoor Patio Heater with Wheels for commercial and residential outdoor spacesAutomatic Shut-Off safety feature if tipped over; Anchoring Arms IncludedRound Gas Heater with Push Button Ignition and 40,000 BTU OutputReflector Diameter: 31"Heat Radius Output 9-16 Feet (81-256 SQ. FT)20 lb. Capacity Propane Tank (not included) attaches beneath the lower housingStainless Steel Frame and metal screw construction for durable year-round useAssembles in 90 Minutes or Less with the included step by step guide or online PDF fileCommercial Patio Heater for patio dining, waiting area, hotel valet/doorman, outdoor weddings and special events