Purchase a 6-inch round or rectangular chimney brush. For stainless steel use liners, wire brushes – only those with a polyester-based bristles. Wire brushes may damage the steel liner during cleaning. Climb ladder up to your roof, and gain solid footing. Put the brush to flex rod.
Force brush down the, turning the brush in a circular motion as you force it down. This brush should be very tight in the chimney and will require some force on your end. Clean creosote brush off by washing them with soap and water outdoors and disposal of large chunks of creosote properly, as it is highly flammable. (Check your regional trash disposal laws.)
Rectangular chimney brush – Chimneys come in many shapes, sizes and finishes. Many chimneys are made of stainless steel, which helps to conduct heat well and prevents the buildup of creosote inside the chimney. Still, regular cleaning of your chimney will make sure that it is safe to drive at all times. If you would like to clean the chimney, however, without the help of a professional, take a whole good deal of strength and work.