The Mr. Heater Base Camp Pro Series compact Radiant Heater is the perfect size for safely warming up spaces like small tents, hunting blinds, truck caps, campers and ice shanties. Enjoy radiant heat comfort along with built-in safety shut-off protection. With 3,800 BTU/HR of radiant heat, this handy little heater is the right-sized solution for packing some heat wherever your outdoor adventures take you. 25% more heat than comparable catalytic heaters. Indoor Safe-features low oxygen shut-off system (ODS) and tip-over safety shut-off. Provides 5 1/2 hours of continuous heat. Easy to carry - easy to store. Easy one-button start.