The chimney inner sleeve Chimney inner sleeve WADEX 125 mm diameter (model 125100150) is compared against several similar metal sleeves from the WADEX brand with 125 mm and 126 mm diameters, designed for repairing, lining, and adapting flue channels. All products are made of metal and serve the same core purpose: providing a smooth, heat-resistant conduit for exhaust gases, improving draft, and protecting masonry from condensation and corrosion. The main differences between the models lie in their fuel compatibility specifics, installation nuances, and a slight diameter variance in one alternative model.
⚙️ Below is a comparison of key technical characteristics, such as the internal diameter of the sleeves, compatibility with various fuel types, installation purpose, and the practical significance of these parameters for building a safe flue gas removal system.
| Parameter | WADEX 125 mm (model 125100150) | WADEX 125 mm (model 125100120) | WADEX 125 mm (model 125120130) | WADEX 126 mm (model 126180150) | WADEX 125 mm (model 125130180) | WADEX 125 mm (model 130) | Practical significance |
|---|
| Internal diameter | 125 mm | 125 mm | 125 mm | 126 mm | 125 mm | 125 mm | The uniform 125 mm standard (and close 126 mm alternative) ensures precise compatibility with most standard heating appliance connectors and flue pipes of matching cross-section. |
| Fuel type | Not specified | Solid fuel | Compatible systems | Solid fuel | Solid, liquid, or gaseous fuel | Compatible systems | Models supporting multiple fuel types offer higher versatility, whereas specialized solutions require precise matching for specific boilers or stoves. |
| Primary purpose | Chimney repair, lining, and adaptation | Repair and maintenance of residential and solid-fuel stoves | Internal lining and repair of existing flues | Repair and retrofit of masonry chimneys | Solution for multi-fuel heating systems | Installation in compatible masonry or prefabricated chimneys | All products aim to seal cracks and improve draft, though certain modifications are optimized for specific installation tasks. |
◎ The table below evaluates the suitability of the models for various use cases, heating equipment types, and property owner needs in maintaining chimney systems.
| Use case | Recommended product | Why |
|---|
| Standard 125 mm chimney repair | Chimney inner sleeve WADEX 125 mm diameter (model 125100150) | Provides an exact 125 mm liner size for sealing flues and improving draft in residential and light commercial buildings. |
| Solid fuel system maintenance | Chimney inner sleeve WADEX 125 mm diameter (model 125100120 or 126180150) | Specialized variants are designed to work with solid-fuel stoves, protecting masonry from aggressive combustion byproducts. |
| Installation in universal heating systems | Chimney inner sleeve WADEX model 125 — flue liner for 125 mm chimneys | Supports operation with solid, liquid, or gaseous fuels, offering flexibility in heat source selection. |
The chimney inner sleeve Chimney inner sleeve WADEX 125 mm diameter (model 125100150) is best suited for standard 125 mm chimney repair and lining tasks in residential and commercial buildings. Choose this model if you need a reliable baseline solution to restore chimney tightness and draft. When working exclusively with solid fuel or requiring universal support for multiple fuel types, alternative modifications may be better tailored to specific heating equipment setups.
