Schiedel 5″ (125mm) Internal Diameter ICID Plus Insulated Locking Plug
The ICID Plus 125mm insulated locking plug is designed to fit flue lengths, wall supports, and bends within the ICID Plus twin wall flue system. It provides a secure closure where required and features a plain stainless steel finish to match the rest of the range.
This locking plug is part of the ICID Plus twin wall flue system, which is engineered with advanced corrosion resistant construction. It includes a laser welded 316L stainless steel inner liner and a stainless steel outer casing for long term durability.
The system is insulated with 25mm of high density rockwool to help maintain flue gas temperature, improve efficiency, and reduce condensation. Components connect using a twist lock bayonet jointing system and are secured with a locking band. A rubber joint seal allows the system to be used with condensing and biomass appliances.
The ICID Plus twin wall insulated chimney system is suitable for use with open and closed stoves operating at temperatures up to 450°C. The load bearing outer casing allows the inner liner to expand independently, accommodating thermal expansion at every joint for reliable long term performance.
About ICID Plus
ICID Plus, manufactured by Schiedel, is a versatile twin wall chimney system designed for a wide range of domestic and commercial applications. It is suitable for Dry, Wet, and Positive Pressure installations and supports multiple fuel types.
Compatible appliances include gas, oil, wood, multi fuel, traditional stoves, pellet stoves, biomass systems, mini and micro CHP units, and condensing boilers designed for positive pressure operation.
Key Features of ICID Plus
- Internal diameters available in sizes 125mm and 150mm
- Secure twist lock bayonet jointing system with locking band
- High corrosion resistance using a laser welded 316L stainless steel inner liner and stainless steel outer case
- 25mm high density mineral wool insulation to maintain flue gas temperature, improve efficiency, and reduce condensation
- Low external surface temperature for enhanced safety
- Inner liner designed to allow maximum thermal expansion and prevent moisture ingress
- Lifetime guarantee for long term peace of mind
ICID Plus delivers reliable performance, advanced engineering, and long lasting construction, making it an excellent choice for a wide range of heating and flue system applications.






