Mount the RE-VERBER-RAY portable infrared propane heater on a standard DOT 20-lb. LP cylinder (not included) to provide temporary heat. Features a large ceramic burner assembly with highly polished aluminum reflector and stainless steel emitter rods for enhancing radiant output and heater efficiency. Heavy-gauge cylinder mounting bracket, safety shutoff valve, tip-over safety device, excess flow fitting, and 2-ft. UL-Listed connecting hose with regulator. Use in upright or vertical position only. Warning: Use in well-ventilated or open areas only. Not for use in homes, mobile homes, tents, RVs, campers, or other spaces with limited ventilation. Always observe publishing clearances to combustibles. Item: Tank Top Portable Gas Heater Gas Type: LP BtuH Output: 32,000 Min. Cylinder Size: 20 lb. Heating Area: 50 to 500 sq. ft. Fuel Rate: 1.30 lb./hr. Built-In Thermostat: No Height: 18-5/8" Width: 10-1/6" Length: 4-1/2" Air Flow: 350 cfm Safety Features: Max. Tank Size is 20 lb. Includes: Heavy Gauge, Swivel Type Mounting Clamp, 100% Safety Shut Off Valve, Tip Over Safety Device, Thermocouple Flame Detector, LP Gas Regulator and 2 ft. Connecting Hose