Chimney inner sleeve WADEX 125 mm diameter, model 130

The WADEX chimney inner sleeve with a 125 mm nominal diameter, model 130, is an internal liner component designed to create a smooth, continuous passage for flue gases inside compatible chimneys. Manufactured for use where a 125 mm liner is required, this sleeve protects the chimney masonry or prefabricated elements from soot, condensate and heat exposure while maintaining stable draft conditions. The product is intended for installation as part of an overall flue system and is suitable for solid fuel appliances, pellet stoves and other heating devices that match the 125 mm flue connection.

Advantages

The sleeve provides a uniform, low-roughness inner surface that reduces flow resistance and limits deposits. Its construction helps to isolate the chimney structure from corrosive by-products of combustion, extending the service life of the chimney. The component is dimensioned to fit 125 mm nominal flue openings and allows secure mechanical connections to adjacent liner sections or appliance outlets, supporting stable operation and safer exhaust removal.

Suitable for

• Relining or repairing masonry chimneys requiring a 125 mm liner
• Connecting pellet stoves and small solid-fuel appliances with 125 mm flue outlets
• Installation within prefabricated chimney systems that accept 125 mm inner sleeves

Key specifications

• Nominal internal diameter: 125 mm
• Model type: 130 series inner sleeve
• Intended use: internal chimney liner component for flue gas passage
• Material characteristics: smooth internal surface for reduced soot adhesion (material as supplied by manufacturer)
• Compatibility: designed for chimneys and appliances sized for 125 mm liners

How to use

Install the inner sleeve into the prepared chimney opening following the chimney system manufacturer’s instructions. Ensure the sleeve is correctly seated and aligned to form a continuous flue path; connect adjacent liner sections or appliance outlets with proper couplings or seals recommended for 125 mm liners. Verify that all joints are secure and that the sleeve does not obstruct the flue. After installation, perform a leak and draft check and, where required, have the installation inspected by a qualified technician to confirm compliance with local building and safety regulations.

Usage recommendations

Use the sleeve only in chimneys and appliances specified for a 125 mm liner. Regularly inspect the liner for soot accumulation, corrosion or damage and remove deposits as required. Follow local codes for clearances, ventilation and maintenance schedules; if uncertainty exists about compatibility or installation, consult a qualified chimney or heating specialist.