Portable Gas Tank-Top Heater Head Shape Round Number of Heads 1 Heating Capacity Output 15 000 BtuH Heating Area 250 sq ft Minimum Cylinder Size 20 lb Overall Height 12 in Overall Width 7 1/8 in Overall Depth 8 1/4 in Number of Heat Settings 3 For Use Indoors/Outdoors Outdoor Only Fuel Consumption 0.66 lb/hr Fuel Type Propane Heating Method Radiant Ignition Type Matchless Piezo