The 150mm double-walled 90° stainless steel elbow (Reference: B25142437) is an essential component for ensuring safe, efficient, and long-lasting flue gas evacuation in heating systems, pellet stoves, fireplaces, and boilers. Specifically designed to meet the demands of high-temperature installations, this stainless steel elbow offers exceptional resistance to corrosion, soot, and acidic condensation generated during combustion. Its double-walled construction provides superior thermal insulation, optimizing chimney draft, improving the energy efficiency of the heating appliance, and drastically reducing the risk of heat transfer to nearby flammable materials. This design facilitates professional installation on both interior and exterior flue sections, ensuring a perfect seal along the entire flue gas outlet.

Features of the 90º Double Wall Stainless Steel Elbow 150 mm

• High quality material: Made entirely of stainless steel that is resistant to corrosion and high temperatures.


• Double wall system: Incorporates a thermal insulation chamber that improves draft and protects adjacent structures.


• Diameter of 150 mm: Standard size ideal for a wide range of biomass stoves, pellet stoves and traditional fireplaces.


• Precise 90-degree angle: Allows for clean and safe turns in the flue pipe routing.


• Certified safety: Designed to withstand thermal shock and prevent excessive residue buildup.


• Easy installation: Optimized coupling system for a firm, quick and watertight fit between pipes.


• Versatility of use: Suitable for evacuation installations both inside homes and on exterior facades.

Frequently Asked Questions

What type of heating systems is this elbow compatible with?

This 150mm double-walled elbow is designed for pellet stoves, wood stoves, metal fireplaces and biomass boilers that require a reliable and safe flue outlet.

Why is a double-walled pipe better than a single-walled one?

The double wall includes thermal insulation, which prevents the smoke from cooling too quickly (improving draft) and reduces the outside temperature of the pipe, minimizing fire risks and preventing excessive condensate formation.

Can it be installed on the exterior of the house?

Yes, thanks to its stainless steel construction and double-walled design, it perfectly withstands inclement weather, humidity, and sudden temperature changes typical of the outdoors.

What maintenance does this flue require?

It is recommended to perform a periodic cleaning and de-sodizing of the flue at least once a year, or according to the instructions of the manufacturer of your stove, to ensure proper gas venting and prevent blockages.