The 200 mm Double-Walled 45° Stainless Steel Elbow (Reference: B25142417) is an essential component for the safe and efficient installation of flue gas evacuation systems, optimizing the performance of pellet stoves, fireplaces, and biomass boilers. Specifically designed to meet the demands of flue gas venting in modern construction, this stainless steel elbow ensures optimal combustion gas flow thanks to its double-walled design, which maximizes thermal insulation and prevents condensation. Its robust construction guarantees excellent resistance to high temperatures and corrosion, extending the lifespan of the entire heating system.

The versatility of this 45-degree elbow allows for the seamless integration of structural deviations in roofs and facades, ensuring a watertight seal and facilitating the design of complex layouts in both new construction and renovations. The high-quality materials used in its manufacture provide a professional finish that complies with current fire safety and energy efficiency regulations. Choosing this exhaust duct means investing in peace of mind and the year-round, reliable operation of your heating system, while minimizing maintenance thanks to its smooth interior surface that prevents soot buildup.

Technical Specifications

• 45-degree turning angle for precise deviations in flue pipes.


• Double-walled design that provides superior thermal insulation.


• 200 mm inner diameter, compatible with standard high capacity systems.


• Made of high-quality stainless steel, resistant to corrosion and high temperatures.


• Product reference: B25142417.


• Suitable for pellet stoves, wood-burning fireplaces and boilers.


• It facilitates a watertight, safe and durable installation.

Frequently Asked Questions

What type of heating systems is this elbow compatible with?

This double-walled elbow is designed for use in pellet stoves, traditional fireplaces and boilers that require a 200 mm diameter flue, ensuring proper gas venting to the outside.

Why choose a double-wall system over a single-wall system?

The double-wall system includes a layer of thermal insulation that helps maintain the temperature of the gases inside the pipe, improving chimney draft, preventing condensation, and drastically reducing the risk of heat transfer to nearby flammable materials.

Is it easy to install in an existing chimney?

Yes, its standardized design allows for perfect coupling with straight sections and other accessories of the same diameter, facilitating assembly for both professionals and users with advanced knowledge of DIY and plumbing.

What maintenance does this stainless steel elbow require?

Thanks to the properties of stainless steel, maintenance is minimal. It is recommended to perform periodic cleaning of accumulated soot inside, coinciding with the annual heating system inspections, to ensure optimal airflow.