World Marketing KW-24G 23,000-BTU Indoor Portable Convection Kerosene Heater Feature: 23,000-BTU indoor kerosene heater for up to 1000 square feet Simple matchless ignition; 360-degree protective grill promotes safety Built-in 1.9-gallon tank for up to 12 hours of heat; use clean kerosene only Delivers efficient convection heat; portable design; 2 C batteries included BTU: 23,000 Height: 22.20 Width: 18.00 Length: 18.00 Weight: 20.00 lbs.