A single wall system used as a flue liner for fumes from open combustion chamber stoves or for ventilation. This makes it possible to upgrade boiler rooms and adapt old chimneys to new operating conditions, in particular in the case of ducts with the so-called offsets.
It is available in two versions: steel – for boiler rooms with open combustion chamber boilers for gas and oil; and aluminium for ventilation. The system can work only in dry conditions, at temperatures up to 600°C for the steel version and up to 200°C for the aluminium one.