The Vaillant 470mm Boiler Flue Duct Extension 100mm Diameter (303902) is a rigid flue accessory designed to extend the length of a compatible boiler flue system. Manufactured by Vaillant, this extension provides additional flexibility when positioning the flue outlet, particularly in installations where the standard flue length is insufficient.
Commonly used in vertical flue installations, the Vaillant flue duct extension helps provide greater control over where plume is released from a property. This can help installers position the outlet away from neighbouring properties and other unsuitable areas, subject to the boiler manufacturer's installation instructions and applicable flue-clearance requirements.
Vaillant Original Accessory
Rigid Flue Extension
100mm Diameter
470mm Product Description
Stock Code: 303902
Product Highlights
470mm
Described Flue Length
303902
Manufacturer Stock Code
Applications & Suitability
The Vaillant flue duct extension is intended to extend a compatible boiler flue arrangement where additional length is required. It is particularly relevant to vertical flue installations and projects where the position of the flue outlet needs careful consideration.
- Extending a compatible standard boiler flue pipe.
- Vertical flue installations requiring additional reach.
- Helping installers plan the flue outlet position.
- Boiler installations using compatible Vaillant flue accessories.
Key Specifications
| Product Name |
Vaillant 470mm Boiler Flue Duct Extension 100mm Diameter |
| Manufacturer |
Vaillant |
| Manufacturer Stock Code |
303902 |
| EAN Code |
4024074398029 |
| Product Type |
Boiler Flue Duct Extension |
| Sub-Category |
Extensions |
| Category |
Flues |
| Category Name |
Boilers |
| Type |
Boiler Accessories – Flue Extensions & Bends |
| Flue Construction |
Rigid |
| Material |
Steel |
| Length |
500mm (listed specification) |
| Product Description Length |
470mm |
| Diameter |
100mm |
| Colour |
White |
| Range Description |
Flue Accessories |
Flue Extension & Plume Positioning
Additional Flue Length
Extends a compatible standard flue pipe to provide greater flexibility when planning the flue route.
Vertical Installations
Commonly used in vertical flue arrangements where additional length is required.
Outlet Positioning
Can help provide more control over plume release location, subject to applicable installation requirements.
Installation & Compatibility
Before purchasing or installing this flue extension, confirm that the 303902 accessory is compatible with your specific Vaillant boiler and existing flue system. The supplied information does not identify compatible boiler models or the effective installed extension length. Follow the manufacturer's installation instructions and applicable flue-clearance requirements, and use a suitably qualified heating installer.
Ideal For
- Installers extending compatible Vaillant boiler flue systems.
- Vertical flue installations requiring additional length.
- Boiler projects where flue outlet positioning needs consideration.
- Heating system installations using compatible Vaillant flue accessories.
Frequently Asked Questions
What is the Vaillant 303902 flue extension used for?
It extends a compatible standard boiler flue pipe, giving installers more flexibility over the flue route and outlet position.
What is the diameter of this flue extension?
The listed diameter is 100mm.
Is this a rigid or flexible flue accessory?
It is specified as a rigid flue extension made from steel.
What is the stock code and EAN?
The manufacturer stock code is 303902 and the EAN is 4024074398029.
How long is the extension?
The product title describes it as 470mm, while the supplied specification lists 500mm. Confirm the correct product length with the supplier before ordering if this measurement is critical.
Extend Your Compatible Vaillant Flue System
The Vaillant 303902 Boiler Flue Duct Extension is a rigid, 100mm-diameter steel accessory intended to provide additional flue length and greater flexibility when positioning the outlet. Confirm the correct length and boiler compatibility before ordering to ensure it suits your installation.
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