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100MM (4 INCH) Chimney Flue & Gas Vent | National Flues

Discover the 100MM (4 INCH) chimney flue and gas vent category at National Flues. Our products cater to all your fireplace venting needs, ensuring safe and effective flue systems. From adaptors to terminals, all components are crafted with precision and durability in mind. Trust National Flues for high-quality chimney flue solutions that meet industry standards.
Discover the 100MM (4 INCH) chimney flue and gas vent category at National Flues. Our products cater to all your fireplace venting needs, ensuring safe and effective flue systems. From adaptors to terminals, all components are crafted with precision and durability in mind. Trust National Flues for high-quality chimney flue solutions that meet industry standards.


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Showing 20 of 26 items
MI-Flash - No 1 Tile Black EPDM 80-200mm LD-605x505

MI-Flash - No 1 Tile Black EPDM 80-200mm LD-605x505

12-1-LD-TILE
£63.99 (including VAT)
In stock
MI-Flash - No 1 Tile Black-EPDM 80-200mm AL-605x505

MI-Flash - No 1 Tile Black-EPDM 80-200mm AL-605x505

12-1-TILE
£17.99 (including VAT)
In stock
MI-Flash - No 1 Tile Grey SILICONE 80-200mm AL-605x505

MI-Flash - No 1 Tile Grey SILICONE 80-200mm AL-605x505

12-1-TILEHT
£37.99 (including VAT)
In stock
MI-Flash - No 5 Metal Grey SILICONE  101-178mm 280x280

MI-Flash - No 5 Metal Grey SILICONE 101-178mm 280x280

12-5HT
£20.99 (including VAT)
In stock
MI-Flash - No 5 Metal Black EPDM 101-178mm 280x280

MI-Flash - No 5 Metal Black EPDM 101-178mm 280x280

12-5LT
£13.99 (including VAT)
In stock
Chimney Notice Plate

Chimney Notice Plate

20-CNP
£1.93 (including VAT)
In stock
IL - Draughthood Connector - Ø 100

IL - Draughthood Connector - Ø 100

24-100-01
£15.99 (including VAT)
In stock
IL - Flue Liner to IL Adaptor - Ø 100

IL - Flue Liner to IL Adaptor - Ø 100

24-100-04
£29.99 (including VAT)
In stock
IL - Length 1524mm (60in) - Ø 100

IL - Length 1524mm (60in) - Ø 100

24-100-10
£78.99 (including VAT)
In stock
IL - Length 305mm (12in) - Ø 100

IL - Length 305mm (12in) - Ø 100

24-100-13
£27.99 (including VAT)
In stock
IL - Length 152mm (6in) - Ø 100

IL - Length 152mm (6in) - Ø 100

24-100-14
£17.99 (including VAT)
In stock
IL - Adjustable Length - 305mm (12in) - Ø 100

IL - Adjustable Length - 305mm (12in) - Ø 100

24-100-15
£34.99 (including VAT)
In stock
IL - Adjustable Length - 457mm (18in) - Ø 100

IL - Adjustable Length - 457mm (18in) - Ø 100

24-100-16
£46.99 (including VAT)
In stock
Standard Fixing Kit

Standard Fixing Kit

32-SK1
£8.99 (including VAT)
In stock
IL - Adaptor to Flue Liner - Ø 100

IL - Adaptor to Flue Liner - Ø 100

24-100-03
£36.99 (including VAT)
Out of stock
IL - Length 457mm (18in) - Ø 100

IL - Length 457mm (18in) - Ø 100

24-100-12
£37.99 (including VAT)
Out of stock
IL - 90° Tee - Ø 100

IL - 90° Tee - Ø 100

24-100-31
£110.99 (including VAT)
Out of stock
IL - Tee Cap - Ø 100

IL - Tee Cap - Ø 100

24-100-32
£9.99 (including VAT)
Out of stock
IL - Support Plate - Ø 100

IL - Support Plate - Ø 100

24-100-50
£21.99 (including VAT)
Out of stock
IL - Wall Band (Internal) - Ø 100

IL - Wall Band (Internal) - Ø 100

24-100-51
£24.99 (including VAT)
Out of stock
Your 100MM (4 INCH) Questions Answered

What is the importance of a chimney flue? -

A chimney flue acts as a passage for smoke and gases to safely exit your home. It also helps regulate airflow for efficient combustion.

Do I need a professional to install the 100MM (4 INCH) chimney flue? +

Can I use the 100MM gas vent products with all types of fireplaces? +

Are National Flues' 100MM products compliant with industry regulations? +

How do I know which 100MM components I need for my fireplace? +

Can I customize 100MM chimney flue components for my unique requirements? +

What maintenance is required for 100MM chimney flue products? +

When it comes to venting your fireplace, the 100MM (4 INCH) category offers a comprehensive range of products designed for efficient gas venting. At National Flues, we understand the importance of a properly functioning flue system, and our 100MM solutions provide the perfect fit. Whether you need adaptors, pipes, bends, tees, or supports, our products are built to last and ensure optimal performance.
Why Buy 100MM (4 INCH) Products
The 100MM (4 INCH) chimney flue and gas vent products are ideal for both residential and commercial fireplace installations. These components are specifically crafted to facilitate proper ventilation and safe gas dispersion. Whether you are renovating an existing fireplace or installing a new one, our 100MM products offer versatility and reliability for all your venting needs.

Trusted By Trade Professionals

Our 100MM (4 INCH) products and services are trusted by hundreds of professionals nationwide. We're committed to providing quality and reliability that meets the high standards of our customers.

Dedicated Support

Experience our unparalleled customer service and support when you buy 100MM (4 INCH) from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.

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