De Dietrich 82290012 bottom turbulator

This is a bottom turbulator for De Dietrich boilers, catalogue article 336.841.001, manufacturer code 82290012. Turbulators of this type fit into the flue gas passages of the heat exchanger. Their function is to create turbulence in the hot gas flow, slowing the gases and increasing the contact time with the heat exchange surfaces. This improves heat transfer to the water and raises overall boiler efficiency. Selection of a replacement turbulator must be made on the basis of the specific boiler model: the dimensions of the flue ways, the number of passages, and the turbulator’s profile are all model‑specific. Parts of this type are typically made from stainless steel, aluminium alloy, or copper, depending on the appliance’s design and operating temperature. The gasket material and configuration also vary between models, so the exact part must match the original. When inspecting turbulators during service, common issues include soot buildup on the gas side, which reduces heat transfer and may block flue passages, and, in condensing appliances, corrosion where condensate collects. Scaling on the water side of the heat exchanger can indirectly affect turbulator performance by raising flue gas temperatures. A turbulator that is damaged, deformed, or heavily fouled should be replaced with a genuine part of the same design to maintain efficiency and correct flue gas flow.