Height: 90" Reflector Diameter: 34" Burner Materials: All Stainless Steel Construction Emitter Grid Materials: Heavy Duty series 430 stainless steel Fasteners: Series 304 stainless steel Finish Colors: Commercial Grade Stainless Steel BTU Input/Hour: 41,500 BTU/Hour Reflector Clearances: 18" from the top, 24" from all sides Base Diameter: 21.5" Net Weight: 60 pounds Heating Area: Up to 20 feet diameter (will vary based on wind chill factor, prevailing winds, location of heater, wind protection) Burn Time: Constant supply on Natural Gas Fuel Supply: Natural gas only Safety Systems: 100% safety shut-off, Main Gas Supply Shut-Off Product Approval: USA and Canada approvals through Underwriters Laboratories. CSA 5.90 (3rd edition) Infrared Patio Heater Standard. Installation: Heater comes complet with 12' CSA approved steel lined (hook up kit) vinyl wrapped hose set, two solid brass quick couplers, and a solid brass shut off valve for installation at the gas supply. The post internal are completely pre-assembled, but require minimal leak testing. Installation must conform to local codes and ordinances. Please check with local fire, code, or safety officials if you have any questions as to the suitability or acceptability of this heating appliance and storage of propane cylinders. Warranty: One year Limited Warranty