Imperial 2 lb. Powder Soot Remover. It is effective against scale and soot in wood burning systems. This product can help reduce the threat of a chimney fire and increase heating efficiency. It can be beneficial in a total maintenance program but is not intended as a replacement for regular inspections by a certified professional. Use in wood burning systems. May be effective against scale and soot in wood burning systems. Can help reduce the threat of a chimney fire and increase heating efficiency.