This 23,800 BTU indoor kerosene portable heater is ideal as supplemental heating for your home, basement, garage, cabin, RV, and more. It's excellent for everyday zone heating, as well as for emergency situations when the power goes out. It heats up to 1,000 square feet, and operates up to nine to twelve hours on one full tank of kerosene. This heater features easy electronic ignition, one-touch shutoff, an easy-to-read fuel gauge, a built-in safety shutoff, a convenient carrying handle, and includes batteries and a siphon pump. Additionally, it doesn’t require electricity, is 99.9% fuel efficient, is UL certified, and has a limited one-year warranty.