Chimney liner WADEX 103120000 — flexible flue liner for exhaust and ventilation systems

WADEX 103120000 flexible flue liner is a corrugated, heat-resistant duct designed for installation inside chimneys and ventilation shafts to guide combustion gases from heating appliances to the outside. Intended for relining existing masonry chimneys or connecting stoves, fireplaces and boilers to flue systems, this flexible liner helps maintain proper draft and reduces leakage of exhaust gases into living spaces. The product is suitable for settings where a flexible, adaptable connection is needed to accommodate offsets and limited access.

Advantages

The flexible construction allows easy routing through bends and offsets without extensive masonry work, and the corrugated inner profile provides mechanical strength while permitting thermal expansion. Made for high-temperature exhaust, the liner resists corrosion from condensates typical in heating systems and helps improve draft efficiency when correctly installed. Its compatibility with a variety of chimney shapes and appliance outlets makes it a practical choice for renovation and installation projects.

Suitable for

• Relining existing masonry chimneys in residential buildings
• Connecting wood, pellet, or gas stoves to a flue system
• Linking fireplaces and room heaters to ventilation ducts
• Repairing or upgrading chimney flues to reduce leakage and improve draft

Key specifications

• Flexible corrugated construction for easy routing through bends
• Heat-resistant material suitable for exhaust gases from domestic heating appliances
• Designed for use inside chimneys and ventilation shafts
• Corrosion-resistant surface to withstand condensates typical in flue gases
• Compatible with a range of chimney shapes and appliance outlet configurations

How to use

Install the flexible flue liner by feeding it down the chimney from the top or up from the appliance connection depending on site access, ensuring the liner follows the flue path without kinks. Secure the upper and lower terminations with appropriate collars or sealing rings and fasten to the appliance outlet using a clamp or connector compatible with the appliance. Trim the liner to the required length, leaving allowance for proper connection and sealing. After installation, perform a smoke or draft test and inspect all seals to confirm there is no leakage of combustion gases into the building.

Usage recommendations

Use the liner only with appliances and fuels for which it is rated; verify compatibility with local building codes and chimney regulations. Regularly inspect the flue for soot, creosote or corrosion, and schedule professional sweeping and maintenance as required. Ensure termination at the chimney top provides adequate weather protection and draft, and install carbon monoxide detection devices in occupied spaces.