Stainless Steel Chimney Central Plate

Chimney Central Plates are made of stainless steel plates in grade 1.4404 according to DIN 17441 with a thickness of 0.5mm.
They are mainly used for flue heating equipment. 
Such chimneys are resistant to the corrosive effects of acidic condensate formed during the combustion process.
Protects from rain the space between the chimney and the contribution chimney