Blaze King Wood Stove Door Gasket (7/8″ × 8′). This gasket is used to seal the main load door against the body of the stove. It is important that you always have a good seal at the door of the stove. If the door is not sealing tightly against the unit, it can cause a decrease in efficiency, inability to control the burn rate and may allow smoke or flue gasses to enter the room!