Opus 51,000BTU Propane Patio Heater: Commercial grade stainless steel outdoor heater Features a traditional cylindrical design Holds the same cutting-edge technology Fully adjustable 3-foot flame Weather proof borosilicate glass tube 360-degrees of heat distribution Easy-start automatic infrared electronic ignition Infrared remote control for multiple units Stay cool and safe to touch grills Signature tilt switch auto-shutoff for total safety Patented latching door lower storage compartment Requires two D batteries CSA certified 10-year limited warranty Measurements: 22.5" DIA x 81.5" H " material="Stainless steel, borosilicate glass" origin="China"