Fire Sense Stainless Steel Deluxe Patio Heater Heat range up to 18 feet diameter; puts out 47,000 BTU's of steady warmth Piezo igniter for easy starts every time, years to come Stainless steel burners and heating grid for optimal durability Auto shut-off valve kills heat if unit tilts for optimal safety Measures 20 by 33 by 89 inches; weighs 46 pounds for stability