The Schiedel Guy Wire Bracket for twin wall flue is designed to provide lateral support to an unsupported chimney above roof level. It is used with guy wires or rigid stays connected between the bracket and suitable anchorage points on the building, helping to stabilise the exposed section of chimney.
The bracket is intended specifically for situations where the twin wall flue extends above the roof and requires additional lateral restraint. Guy wires or rigid stays are not stated as being included; the supplied information specifies that rigid stays are provided by others.
A maximum distance of 1.5 metres between guy wire brackets is specified. This is an important consideration when planning longer unsupported sections of chimney above roof level.
Two fitting sizes are listed: 180mm (7″) and 200mm (8″). Although the product variation table labels these as internal flue diameters, the accompanying product note specifically states that the diameter listed is the external diameter of the fitting. The size should therefore be selected using the stated fitting diameter.
The component is associated with Schiedel ICID twin wall flue support components. The supplied information describes ICID Plus as suitable for applications including traditional stoves, pellet stoves, biomass appliances, mini/micro CHP and condensing boilers capable of operating under positive pressure.
Within the associated ICID Plus system, the outer case is load bearing while the inner liner is able to expand independently. This arrangement accommodates thermal expansion within each joint of the chimney system.
Key Features
- Twin wall guy wire bracket
- Provides above-roof lateral support
- Supports unsupported chimney sections
- Used with guy wires
- Compatible with rigid stays
- Secures to building anchorages
- Maximum 1.5m bracket spacing
- 180mm fitting size option
- 200mm fitting size option
- 7-inch fitting option
- 8-inch fitting option
- Schiedel twin wall component
- ICID support component
Expert Insight
This bracket is relevant where a twin wall chimney extends beyond the roof and cannot rely on the building alone for sufficient lateral restraint. The 1.5m maximum distance between guy wire brackets is particularly important when planning the supported section, while the guy wires or rigid stays need to connect the bracket back to suitable anchorage points on the building.
Suitability
The Schiedel Guy Wire Bracket is intended for twin wall chimney installations with an unsupported section above roof level that requires additional lateral support. It is designed for use with guy wires or separately provided rigid stays and is offered in 180mm and 200mm fitting sizes.
Installation / Technical Notes
The bracket should be connected to guy wires or rigid stays, which are then secured to suitable anchorage points on the building. The stated maximum spacing between guy wire brackets is 1.5m. The product information specifically notes that the listed 180mm and 200mm dimensions refer to the external diameter of the fitting.


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