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Long Retro Fit Base Support Ø 100 (15-100-161)

National Flues presents the Long Retro Fit Base Support Ø 100 – a premium solution for bolstering your chimney flue installations. Optimised for wood stoves, oil and gas boilers, this adaptable retrofit support is a must-have for ensuring efficient, safe, and high-performing systems. Read more...
Now only £115.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.
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At a Glance

  • HETAS approved and CE marked for quality and safety
  • Adjustable support range from 120mm to 375mm
  • Robust construction with 316L and 304 Stainless Steel
  • Suitable for solid fuel and gas/oil appliances including wood stoves and boilers
  • Supports chimney lengths up to 9 metres

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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 Long Retro Fit Base Support Ø 100 is an essential component for solid fuel and gas/oil appliances such as wood stoves, gas coal effect fires, oil and gas boilers, and other solid fuel appliances. This product is HETAS approved and CE marked, providing top-notch safety and quality. The designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20 ensure compliance with high standards.

Designed to be used with TWPro Twin Wall Insulated Chimney parts, this base support is easy to secure with a Locking Band. Maintain a 50mm distance from any combustible material. Adjustable from 120mm to 375mm and suitable for up to 9 metres of chimney, this sturdy support is perfect for single or two-storey homes.

SKU: 15-100-161

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. 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.

Technical Specifications
SKU15-100-161
DesignationEN1856-1 T600 N1 W V2 L50040 G50 / EN1856-1 T200 W V2 L50040 O20
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick)
Fuel CompatibilityWood, Oil, Gas, Low sulphur coal
ApprovalsHETAS, CE
Clearance From Combustibles50mm
Adjustable Range120mm to 375mm
Chimney Support LengthUp to 9 metres
• Ensure that the chimney flue is at least 50mm away from any combustible materials before installation. • Position the base support directly beneath the 90° or 135° tee to guarantee optimal alignment and stability. • Secure the support using the recommended fixings and a Locking Band to prevent movement. • If acting as a load-bearing support for longer flue runs, double-check that the support is level and firmly attached to the wall. • Always consult a professional if unsure about any installation steps or local building regulations.

Yes, it is suitable for solid fuel and gas/oil appliances including wood stoves, gas coal effect fires, and oil and gas boilers.

Absolutely, the Long Retro Fit Base Support Ø 100 is HETAS approved and CE marked for quality and safety.

It is adjustable from 120mm to 375mm from the wall.

One support is usually enough for standard single or two-storey homes, supporting up to 9 metres of chimney immediately above the tee.

Yes, the Retrofit Base Support is designed for easy installation and can be retrofitted to make installation simpler.

Ensure a 50mm distance from the outside of the flue to any combustible materials like wood or plasterboard.

Only recommended fixings should be used to guarantee safety and secure installation.

 

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