- Designed and approved for emergency indoor & outdoor use
- Automatic low oxygen shutoff system
- Accidental tip-over safety shutoff
- Heats up to 400 sq. ft.
- Connects directly to two 1 lb. disposable cylinders or to a 20 lb. cylinder w/optional hose
- CSA certified
Operating time will vary depending on the heater setting and the supply cylinder size. (One 1lb. cylinder: 1.5 to 6 hours. Two 1 lb. cylinders: 3 to 12 hours. Two 20 lb. cylinders: 50 to 220 hours.)