Turn the damper handle to the open position. A partially closed damper prevents the smoke from properly escaping through the chimney, and can quickly fill up your room with smoke.
Protect your hands with gloves, and cover your eyes with a protective plastic goggles. Cover your face with a dust mask, and cover the area surrounding the fireplace with a plastic sheet to prevent soot from staining the floor or furniture.
Insert a chimney brush into to the chimney, and rotate the brush in a circular motion. Brush the tool against the chimney walls in a vertical motion to remove built-up soot inside of the chimney.
Sweep up soot using the fireplace brush. Dispose of the soot in the trash. Pick up the plastic sheet, and place your clothing in a plastic bag to avoid mixing it with your other soiled clothes.