The Bertrams Ewr 21STB120-K is a comprehensive standard chimney kit designed for total heights of approximately 7 meters. Constructed from high-quality V4A stainless steel (1.4404/1.4571) with a 0.6mm wall thickness, it ensures maximum durability and the highest corrosion resistance class "V3". This versatile system is suitable for all standard chimneys and is compatible with oil, gas, and solid fuels.