RIDGID 18-Volt 60K BTU Hybrid Forced Air Propane Portable Heater Product Depth (in.): 11.6 in Product Height (in.): 16.1 in Product Width (in.): 19.34 in Area Heated (Sq. Ft.): 1350. Fuel Tank Capacity (gallons): 0.0 Fuel rate (gallons/hour): .3 Heat rating (BTU/hour): 60000 Heater Controls: Dial Heater Type: Forced Air Heating Product Type: Gas Portable Heater Heating Technology Type: Forced Air Ignition Type: Electrical Indoor/Outdoor: Outdoor Material: Steel Number of Heat Settings: Variable Portable Heater Features: Handle Power/Fuel Type: Propane Product Weight (lb.): 13.5 lb Returnable: 90-Day Room Size: Extra Large Run time (hours): 12 Certifications and Listings: UL Certified