Operates up to 18 hours on 100 lb. tank. Continuous electronic ignition prevents delayed starting. Adjustable heating angle. Integrated ignitor permits single handed ignition. Heavy duty high RPM fan motor. Enclosed components provide extended life. Comes with a 10 ft. hose and regulator and handy fold down carrying handle. Has automatic overheat shut-off. Made of durable steel construction. Ideal for construction sites, finish work, industrial applications. Heats up to 3800 sq.ft. 120000, 135000, 150000 BTUs. Gray