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125mm (5 inch) Standard Flue Box Flue Box (8-SFB)

Discover the superior quality of the National Flues 125mm Standard Flue Box, meticulously designed for modern homes and shallow chimney recesses. This top-of-the-line flue box, perfect for radiant and decorative gas fires, features robust double-wall construction with an aluminium liner and a coated steel outer case. Read more...
125mm (5 inch) Standard Flue Box Flue Box
Low Stock! – Order Now
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Now only £161.99
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At a Glance

  • 125mm (5 inch) standard design ideal for modern, shallow chimney recesses
  • Double-wall construction featuring an aluminium liner and coated steel outer case
  • Specially designed for radiant and decorative gas fires
  • Includes 125mm springfix easy install spigot for hassle‐free attachment
  • Engineered for durability, safety and optimal heating efficiency

We Won't Be Beaten On Price

At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:

  • Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
  • Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
  • Operational Efficiency: We have streamlined processes to reduce overhead.

Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.

Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The 125mm (5 inch) Standard Flue Box is an ideal solution for newer homes that lack a deep chimney breast recess. Featuring a robust double-wall construction, this flue box incorporates an aluminium liner and a coated steel outer case to ensure durability and optimal performance. Specially designed for use with radiant and decorative gas fires, it includes a 125mm (5 inch) springfix easy install spigot, which makes attaching it to a flue liner straightforward and hassle-free.

This product is perfect for those looking for a reliable, easy-to-install option to enhance their home's heating efficiency and safety.

SKU: 8-SFB

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

This is us — real advice over the phone, or at the counter, and real stock in our warehouse.

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Technical Specifications
Diameter125mm (5 inch)
ConstructionDouble-wall with aluminium liner and coated steel outer case
InstallationIncludes 125mm springfix easy install spigot
ApplicationRadiant and decorative gas fires
Stock LevelLow Stock (2)
Our Price£71.11
Retail Price£119.49
Begin by verifying that your chimney recess is suitable for the 125mm flue box. Carefully align the included 125mm springfix spigot with your flue liner to ensure a secure connection. It is essential to follow the manufacturer's instructions precisely. Ensure all components are clean and free from obstructions prior to installation. Should you have any uncertainties or if the installation environment poses additional challenges, consult a professional installer to avoid any potential issues. Be cautious when handling the flue box, as improper installation can affect both performance and safety. Always check that necessary seals are intact and that the junction between the spigot and flue liner is firm to prevent leaks.

This flue box is 125mm (5 inches) in diameter, making it perfect for modern homes with newer heating installations.

The flue box features a double wall construction with an inner aluminium liner and a coated steel outer case.

Yes, the flue box includes a 125mm (5 inch) springfix easy install spigot for straightforward attachment to the flue liner.

This flue box is designed for use with both radiant and decorative gas fires.

Absolutely, National Flues offers secure online payments for retail customers.

Yes, we offer reliable delivery across the UK.

Yes, trade accounts are available, offering special terms and pricing for our trade customers.

 

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