De Dietrich 7631936 flue gas discharge pipe D100

This flue gas discharge pipe is a component of the flue system, tasked with conveying combustion products from the appliance to the termination point. In room-sealed installations, separate ducts may also supply combustion air; this pipe handles the exhaust side. It is part of the De Dietrich range and is designated D100, indicating a nominal diameter of 100 mm. Such pipes are selected based on diameter, material, and temperature class to match the appliance’s flue gas output and the system design—single-pipe or coaxial. The D100 size suits appliances with a corresponding flue connection. When replacing, verify that the pipe material is rated for the operating temperature; condensing boilers produce lower temperatures but require condensate-resistant materials. Seals must be intact and compatible with the joint type used (e.g., lip seal or gasket). If the flue system includes a condensate siphon, ensure that the route for drainage is clear and that the siphon remains topped up, as a blocked or dry siphon can trigger flue gas alarms or cause condensate leakage into the appliance. Always confirm that the pipe length and any bends comply with the appliance manufacturer’s maximum flue resistance limits; additional lengths or fittings may require recalculation of the equivalent flue length.