Dura Heat Convection Kerosene Heater 23,800 BTU Indoor Portable HeaterDura Heat Convection Kerosene Heater, 23,800 BTU, Heats Up To 1,000 Sq Ft Area, Tip Over, Shut Off Protection Kerosene Space Heater Indoor or Outdoor Use The Dura Heat Convection Style Kerosene Heater is the ideal solution for both emergency heating and everyday use. Offering an impressive 23,800 BTU, this indoor outdoor portable heater provides consistent heat for up to 1,000 sq ft, making it perfect for unheated spaces, large rooms, or as a