Optimize the efficiency of your heating system with this 10-meter, 80mm diameter extendable chimney flue and thermal duct , specially designed for the optimal conduction and distribution of hot air. This high-quality duct withstands temperatures up to 250ºC, making it an essential element for channeling heat generated by stoves, fireplaces, and biomass systems to other rooms in your home, thus maximizing the energy efficiency of your installation.

Made from robust, heat-resistant materials, this flexible duct offers exceptional durability and safety for continuous use. Its extendable design, up to 10 meters in length, greatly facilitates handling, cutting, and installation in complex spaces or difficult routes where rigid ducts cannot reach. Furthermore, its 80 mm diameter is perfectly compatible with the vast majority of hot air outlets on heating appliances currently available.

Main Features

• Product type: Extendable tube for thermal duct and chimney outlet.


• Main application: Distribution and channeling of hot air.


• Thermal resistance: Withstands temperatures up to 250ºC without deforming or losing properties.


• Diameter: 80 mm, standardized for easy connection.


• Maximum length: 10 meters, extendable to adapt to any required distance.


• Flexibility: Great adaptability to curves and tight spaces, facilitating quick and easy assembly.


• Product reference: ALI_92180.

Frequently Asked Questions

What type of heating systems is this duct suitable for?

This pipe is specifically designed for the distribution of hot air from fireplaces, pellet stoves, inserts and other heating systems that channel air at a maximum temperature of 250ºC.

Is it easy to install on curved sections?

Yes, thanks to its flexible and extendable design, it adapts perfectly to routes with curves or hard-to-reach spaces, allowing for much easier assembly compared to rigid metal tubes.

Can it withstand direct contact with flames or live fire?

No. This duct is designed to channel hot air up to 250ºC, but it should not be used as the main flue for evacuating combustion gases in sections exposed to direct flame or temperatures higher than recommended.

Can it be cut to the desired size?

Yes, the duct can be easily adjusted to the exact length required by your installation to avoid unnecessary waste and ensure clean and efficient piping.