TS 9673

TS 9673 is a service standard that sets out general rules for cleaning chimneys. It provides a common framework for removing soot and similar deposits that may accumulate in chimney flues, regardless of building type, and describes the general approach to routine chimney maintenance.

Why chimney cleaning matters technically

Chimneys carry combustion gases and particles safely away from a building. Over time, soot and other deposits can reduce draft, increase flow resistance, and create a greater need for maintenance. For that reason, chimney cleaning is not just surface cleaning; it is a maintenance activity aimed at preserving the flue’s proper function.

General scope of this standard

• It covers general rules for chimneys in all types of buildings.
• It addresses the cleaning of deposits such as soot accumulated in the chimney.
• It is a service standard, so its focus is the general conduct of the cleaning service.

In general technical terms, chimney cleaning may be carried out by different methods depending on the chimney’s use, the level of fouling, and access conditions. The emphasis of TS 9673 is the shared baseline for cleaning across building types. It should therefore be understood as a reference for the general terminology and service arrangement used in chimney maintenance.