Fireplace and chimney cleaner.

Preheat the stove or chimney well and throw the FLASH cleaning piece into the fire along with the paper pieces. Once the fire reaches the core of the firewood, an active substance is released, which attacks and dissolves soot and tar. This process can take several days. Residues may be released and fall into the combustion space. It is recommended to apply it one week before cleaning by the chimney sweep. During the heating period, use one firewood every 60-90 days. The heating efficiency increases and fuel consumption decreases.