NBN EN 12391-1:2004

This European Standard describes the method of specifying the design criteria and the installation method for building custom built chimneys with rigid metal liners, for relining a chimney with rigid or flexible metal liners and for system chimneys with rigid metallic liners used to convey the products of combustion from heating appliances to the outside atmosphere. It also gives information on commissioning, cleaning and maintenance of an installed chimney.