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High-Quality 400mm (16 Inch) Chimney Flues & Accessories - National Flues

Discover the finest selection of 400mm (16 inch) chimney flues at National Flues. Our commercial flues, SWPro range, and accessories like adaptors, elbows, and terminals ensure efficient venting for your heating system. With a focus on durability and performance, our products guarantee reliable chimney solutions to meet your needs.

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Call our TWPro advisers on 01670 206 999 if you need any helping with your system design.

£79.99

3-400-001

Adaptor male-male - Ø 400

Adaptor male-male - Ø 400

OUT OF STOCK

£196.49

3-400-002

Increaser - Ø 400

Increaser - Ø 400

OUT OF STOCK

£137.49

3-400-003

Adaptor female-female - Ø 400

Adaptor female-female - Ø 400

OUT OF STOCK

£241.99

3-400-004

Non-concentric increaser - Ø 400

Non-concentric increaser - Ø 400

OUT OF STOCK

£281.99

3-400-008

Reducer - Ø 500

Reducer - Ø 500

OUT OF STOCK

£213.99

3-400-010

Pipe 1 m - Ø 400

Pipe 1 m - Ø 400

OUT OF STOCK

£152.99

3-400-011

Pipe 0,5 m - Ø 400

Pipe 0,5 m - Ø 400

OUT OF STOCK

£120.99

3-400-012

Pipe 0,25 m - Ø 400

Pipe 0,25 m - Ø 400

OUT OF STOCK

£161.49

3-400-014

Adjustable pipe 0,50 - 0,82 m - Ø 400

Adjustable pipe 0,50 - 0,82 m - Ø 400

OUT OF STOCK

£251.49

3-400-015

Adjustable pipe 0,35 - 0,50 m - Ø 400

Adjustable pipe 0,35 - 0,50 m - Ø 400

OUT OF STOCK

£109.49

3-400-018

Pipe 0,10 m - Ø 400

Pipe 0,10 m - Ø 400

OUT OF STOCK

£203.99

3-400-020

Inspection pipe 0,5 m - Ø 400

Inspection pipe 0,5 m - Ø 400

OUT OF STOCK

£141.49

3-400-025

Horizontal pipe with drain - Ø 400

Horizontal pipe with drain - Ø 400

OUT OF STOCK

£192.49

3-400-026

Vertical pipe with drain - Ø 400

Vertical pipe with drain - Ø 400

OUT OF STOCK

£168.49

3-400-027

Lid with horizontal drain - Ø 400

Lid with horizontal drain - Ø 400

OUT OF STOCK

£287.49

3-400-030

Elbow 90° - Ø 400

Elbow 90° - Ø 400

OUT OF STOCK

£204.99

3-400-031

Elbow 45° - Ø 400

Elbow 45° - Ø 400

OUT OF STOCK

£204.99

3-400-032

Elbow 30° - Ø 400

Elbow 30° - Ø 400

OUT OF STOCK

£204.99

3-400-033

Elbow 15° - Ø 400

Elbow 15° - Ø 400

OUT OF STOCK

£365.99

3-400-035

Tee 90° - Ø 400

Tee 90° - Ø 400

OUT OF STOCK

Your 400MM (16 INCH) Questions Answered

What materials are the 400mm (16 inch) chimney flues made of? -

Our chimney flues are typically made of high-grade stainless steel, ensuring durability and corrosion resistance.

Can I use a 400mm (16 inch) chimney flue for a boiler installation? +

Do I need special tools to install a 400mm (16 inch) chimney flue? +

Are the 400mm (16 inch) chimney flues compatible with different chimney types? +

How do I ensure the proper sizing of a 400mm (16 inch) chimney flue for my heating system? +

What maintenance is required for a 400mm (16 inch) chimney flue? +

Can I customize the length and configuration of a 400mm (16 inch) chimney flue? +

When it comes to selecting a chimney flue for your commercial space or residential property, quality matters. At National Flues, our 400mm (16 inch) chimney flues are engineered to deliver exceptional performance and durability. Whether you need adaptors, pipes, reducers, or tees, our wide range of products ensures you find the perfect fit for your heating system. Our commitment to excellence and customer satisfaction sets us apart in the industry, making us the go-to choice for professionals and homeowners alike.
Why Buy 400MM (16 INCH) Products
The 400mm (16 inch) chimney flues from National Flues are designed to cater to a variety of applications, including industrial buildings, multi-story residences, and commercial establishments. These high-quality flues ensure proper ventilation, improve air quality, and enhance the overall efficiency of your heating system. Whether you are upgrading an existing chimney or installing a new one, our products provide the durability and performance you need to complete the job with confidence.

Trusted By Trade Professionals

Our 400MM (16 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 400MM (16 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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