The Schiedel ICID Tee Plug with Drain is designed to cap off part of an ICID twin wall flue system while providing a point for condensate drainage. Available for 125mm (5″) and 150mm (6″) internal flue diameters, it is typically positioned at the end of the header where condensate may collect within the liner.
The tee plug closes the relevant end of the system rather than continuing the flue route. Its integrated drain function allows condensates that form within the liner to be managed from this point.
This makes the component particularly relevant where a tee or horizontal section forms part of the chimney arrangement and a capped end is required with provision for condensate drainage.
Two sizes are available to suit corresponding Schiedel ICID systems: 125mm (5″) and 150mm (6″) internal flue diameter. The correct tee plug should therefore be selected to match the diameter of the adjoining ICID components.
The wider ICID Plus twin wall system is designed with a load-bearing outer case while the inner liner remains free to expand independently. This allows thermal expansion to be accommodated within each joint of the chimney system.
Key Features
- ICID twin wall tee plug
- Integrated condensate drain
- Caps off the system
- Typically fitted to header end
- Allows condensate drainage
- 125mm internal diameter option
- 150mm internal diameter option
- 5-inch system option
- 6-inch system option
- Schiedel ICID component
Expert Insight
The important distinction with this component is the combination of a closed tee plug and drainage provision. Where condensate may occur within the liner, the drain allows it to be managed from the capped end rather than using a plain closure component.
Suitability
The Schiedel ICID Tee Plug with Drain is intended for 125mm or 150mm ICID twin wall chimney layouts requiring the end of the system or header to be capped while retaining provision for condensate drainage.
Installation / Technical Notes
The tee plug is usually positioned at the end of the header and is designed to allow drainage of condensates that may occur within the liner. Select either the 125mm (5″) or 150mm (6″) version to match the internal diameter of the adjoining ICID system.




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