Mr. Heater Little Buddy Heater - The Little Buddy indoor safe, propane heater is the latest evolution in compact portable heat for enjoyable comfort with safety in mind. Easy to use and easy to store, the Little Buddy is perfect for heating workshops, hobby spaces, enclosed porches, hunting blinds and campers. Little buddy's radiant heating technology, like the sun, heats people and objects which in turn heat the surrounding space. It's heat you feel instantly. Plus, it features an indoor safe low oxygen shut-off (ODS) and a tip-over safety shut off. And with 3,800 BTUs, the Little Buddy is the right-sized solution for instant heat - when you need it, where you need it. Heats up to 100 sq ft. CSA certified for indoor use 3,800 BTU One button ignition/on function Accidental tip-over safety shutoff Oxygen depletion sensor Heats up to 200 sq. ft. Connects directly to a 1 lb. tank Heating time: 5.5 hours Not designed for permanent installation Not designed for use above 7000 ft.