This indoor kerosene heater is a safe ideal choice for supplemental heating, offering 23,000 BTU's. This is great for use in home, basement, garage, or at the cabin, heating up to areas of 1,000 square feet, a 360 degree radius, for up to 11 hours. No electricity required (batteries included), they make an excellent choice for both everyday zone heating as well as for emergency situations when the power goes out. Indoor kerosene heaters use ONLY 1 K kerosene, burn with 99.9% efficiency, and operate with a push button on and off design. Features: a) Mechanical Tip Shut-Off Assembly, b) Push Button Electric Ignition, c) Run-Time Fuel Gauge, d) One Touch Extinguish System, e) Convenient Handle, f) CSA Certified. Replacement wicks are available, model number B1319413.