Portfolio DOUBLE-WALL REVISION The revision serves to ensure accessibility and cleaning of the chimney, as well as to drain condensate specifications:Steel grade: 201, 304, 321Diametr (Ø): 100/160-400/460Steel thickness (mm): 0.5, 0.8, 1.0 Oval pipe oval chimney elements + Single-wall spark arrester (grid) + Basket under stones edge elements for saunas and fireplaces + Double wall pipe double wall elements + Single wall pipe single wall elements + Single-wall volper single walled accessories single walled accessories +
