Chimney inner sleeve WADEX 126 mm diameter (model 126180150)

WADEX chimney inner sleeve with a 126 mm internal diameter is a metal flue liner designed to protect and restore masonry chimneys and chimneys serving solid-fuel appliances. The sleeve creates a smooth, continuous internal surface that facilitates removal of exhaust gases, reduces the risk of corrosion in the chimney structure, and helps reestablish proper draft. It is intended for repair, retrofit, or routine maintenance when the original flue is damaged, eroded, or no longer meets safe operating conditions.

Advantages

The metal construction offers resistance to high temperatures and combustion condensates, providing a durable lining that extends the service life of existing chimneys. A consistent internal diameter supports better gas flow and reduces turbulence, which can improve draft and lower the likelihood of soot accumulation. The sleeve is suitable for insertion into different masonry flue shapes and can be used in repair work without full chimney reconstruction, making it a practical option for refurbishment projects.

Suitable for

• Lining and repairing masonry chimneys used with wood, coal or pellets
• Retrofit projects to restore draft and safe flue operation
• Replacement of degraded or corroded flue surfaces
• Maintenance of chimneys serving solid-fuel stoves and boilers

Key specifications

• Internal diameter: 126 mm
• Material: metal flue liner suitable for exhaust gases from solid fuels
• Designed for insertion into existing masonry flues
• Provides a smooth internal surface to reduce soot adhesion
• Intended for use with solid-fuel appliances and masonry chimneys

How to use

Before installation, inspect the chimney to confirm structural stability and remove loose debris and heavy soot deposits. Measure the chimney opening to ensure compatibility with the 126 mm internal diameter sleeve. Fit the sleeve into the flue from the top or bottom according to site access, ensuring it runs straight and sits securely along the chimney length. Connect and seal sleeve joints as required by accepted installation practices and local building codes, and restore the chimney termination and appliance connections after the sleeve is in place.

Usage recommendations

When installing the WADEX inner sleeve, follow local regulations and manufacturer guidance for flue lining. Use appropriate sealing materials for joints and verify clearances to combustible materials. Arrange a final inspection and flue performance check, including draft testing and smoke/combustion gas measurements, before regular use of the appliance.