For use on solid fuel and gas/oil appliances. eg: woodstoves, gas coal effect fires, oil boiler, gas boiler and any solid fuel appliances.
 
Outer skin is made from 304 stainless Steel and is 0.4mm thick. This is then coated in a high temperature Black finish. The Inner skin is made from 316 grade stainless steel and is 0.4mm thick. Insulation is compressed rockwool giving a density of 200kg/m³. All parts are fully welded.. Distance to combustibles is 50mm.
 
TWPro Twin Wall Insulated Chimney parts are secured together by using a Locking Band (supplied).. Make sure that you keep a distance of 50mm from the outside of the flue to any combustible material (wood, plaster board).