DIN V 18160-1 Bb.3:2007 Chimneys - Part 1: Design and performance, Supplement 3: National supplement for the use of system chimneys with plastic flue liners according to DIN EN 14471
2006DIN V 18160-1 Bb.2:2006 Chimneys - Part 1: Design and performance; National supplement for the use of clay/ceramik flue liners according DIN EN 1457, allocation of the classification system for custom built chimneys