Clear Glass Lamp Chimney, Replacement Hurricane Globe Measures 2 3/8 Inch Diameter Base x 7 1/2 Inches High for Oil or Kerosene Lanterns. Oil lamp chimneys are used to cover and protect the flame of an oil lamp. The chimney serves several purposes: Protection: The chimney shields the flame from drafts and prevents it from being extinguished easily. This is especially important in outdoor settings or drafty indoor environments. Safety: By containing the flame within the glass chimney, the risk of