The Heat Hog 4,000 BTU Portable Propane Heater is perfect for adventurers that are on the go. This lightweight unit supplies up to 5.3 hours of continuous warmth on a standard 1-lb. propane tank. With the Curved Plaque Technology supplying up to 100 sq. ft. of heat, it’s built in Safety Tip-over Switch and Low-Oxygen Safety Shut-off, you’ll always be comfortable wherever you are. Perfect for Hunting, Fishing, Camping, Sporting Events or just relaxing, the Heat Hog 4,000 BTU Propane Heater is the right choice for portable comfort on those chilly days.