× National Flues
We Will NOT Be Beaten on Price.
Free Delivery on Orders Over £100
5 Star Reviewed on Trustpilot
Free Flue Design Service Available
Help? 01670 206999 (8am-5pm)

Sflue (70123407MI) - Storm Collar - 127mm Ø

Enhance your chimney’s performance with the Sflue (70123407MI) Storm Collar - 127mm Ø from National Flues. This top-quality product is engineered to provide superior weatherproofing and enduring protection for a range of fuel appliances including wood stoves, oil and gas boilers, and coal effect fir... More...
Hover to Zoom / Click for Gallery

At a Glance

  • - Durable dual-layer stainless steel construction (304 outer, 316 inner at 0.4mm thickness)
  • - Designed for solid fuel, wood stoves, gas coal effect fires, and oil/gas boilers
  • - HETAS Approved and CE marked (EN1856-1 T450 N1 D V2 L50040 G50)
  • - Includes a tube of silicon sealant for enhanced weatherproofing
  • - Features an 8-barbed twist-lock mechanism for secure and quick installation
Now only £23.49
Including VAT Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

 

Payment Options

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: [email protected]

The Sflue (70123407MI) Storm Collar - 127mm Ø is specifically designed for use on solid fuel and gas/oil appliances including wood stoves, gas coal effect fires, and oil/gas boilers. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both with a thickness of 0.4mm, this storm collar ensures durability and longevity. The insulation is made from compressed rock wool with a density of 230kg/m3, encapsulated within twist-lock couplers for added efficiency.

All parts are fully laser welded for superior quality. To maintain safety, ensure a distance of 50mm from any combustible materials. The Sflue system also boasts HETAS approval and carries the CE mark under Designation Number EN1856-1 T450 N1 D V2 L50040 G50.

Installation is straightforward, using an 8-barbed twist-lock system and securing the parts with a locking band.

SKU: 22-125-082

Technical Specifications
SKU22-125-082
ItemStorm Collar - 127mm u00d8
Outer Material304 Stainless Steel (0.40mm thick)
Inner Material316 Stainless Steel (0.40mm thick)
InsulationCompressed Rock Wool (230kg/m3)
CertificationsHETAS Approved / CE Marked (EN1856-1 T450 N1 D V2 L50040 G50)
Installation Mechanism8-barbed twist-lock with locking band
Minimum Distance To Combustibles50mm
Warranty15 Years
Before installing the Sflue Storm Collar, ensure that your chimney flue area is clear of debris and that there is a minimum 50mm gap between the collar and any combustible materials. Begin by applying the provided silicon sealant to the appropriate areas, ensuring a watertight seal. Fit the storm collar onto your chimney flue system using the 8-barbed twist-lock mechanism, and secure it firmly with the locking band. Always check that the collar is correctly aligned before finalising the installation. For optimal performance, have the installation inspected by a qualified professional if you are unsure about any step in the process.

The Sflue (70123407MI) Storm Collar is compatible with solid fuel and gas/oil appliances such as wood stoves, gas coal effect fires, and oil and gas boilers.

The storm collar is constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick.

Yes, the Sflue system uses an 8-barbed twist-lock twin wall insulated chimney mechanism, secured with a locking band for easy installation.

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

Yes, it is HETAS Approved and CE marked under Designation Number EN1856-1 T450 N1 D V2 L50040 G50.

The storm collar comes with a tube of silicon sealant for secure installation and weatherproofing.

The storm collar uses compressed rock wool insulation with a density of 230kg/m3, encapsulated within the twist-lock couplers.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

Warranty & Returns +

All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Price Match Guarantee +

We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.

Read our buyers guide for this Sflue (70123407MI) - Storm Collar - 127mm Ø

National Flues Ltd Verdict

The Sflue (70123407MI) Storm Collar - 127mm Ø is an exemplary choice for anyone needing reliable weatherproofing for their chimney system. At National Flues, we take pride in offering this high-quality, HETAS Approved product with secure online payments and nationwide delivery for both retail and trade customers.

The Sflue (70123407MI) Storm Collar is designed to weatherproof the top of the flashing on chimney flue systems, providing a secure seal against external elements.

National Flues is a trusted supplier of high-quality fireplaces and flues, serving retail and trade customers across the UK. Known for competitive pricing and reliable delivery, we offer secure online payments and tailored trade accounts.

 

Our Rating Image

Take the next step towards robust chimney protection—order your Sflue Storm Collar now and safeguard your home.

Your recently viewed products:

Multiple Payment Options- including Klarna, Clearpay, Mastercard, Visa and Paypal
Free Design Service