Storm Collar - Ø 125
At a Glance
- - Waterproof performance ensuring roof integrity
- - High-grade stainless steel construction (304 & 316L)
- - HETAS & CE approved for safety and reliability
- - Versatile compatibility with various fuel appliances
- - Easy installation with locking band & silicone seal

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]
- Info
- Specs
- Install
- FAQs
The Storm Collar Ø 125mm is an essential accessory designed to ensure watertight integrity where your chimney or flue passes through the roof. Suitable for solid fuel, gas, and oil appliances, including wood stoves, gas coal-effect fires, and boilers, this storm collar is crafted from high-grade stainless steel for maximum durability. The outer skin is composed of 304 grade stainless steel, while the inner skin boasts 316 grade stainless steel, both with a thickness of 0.4mm.
The insulation comprises high-density compressed rockwool, ensuring robust thermal protection. Fully welded for extra strength, the Storm Collar Ø 125mm maintains a safe distance from combustible materials and is HETAS and CE approved for peace of mind. Installation is straightforward, employing a locking band to secure twin wall insulated chimney parts.
Remember to seal the top edge with silicone to achieve complete watertightness.
SKU: 15-125-082
Technical Specifications | |
---|---|
SKU | 15-125-082 |
Dimensions | u00d8125mm, twin-wall compatibility |
Materials | Outer: 304 Stainless Steel, Inner: 316 Stainless Steel, Insulation: Compressed Rockwool |
Thickness | 0.40mm (each skin) |
Approvals | HETAS, CE |
Fuel Compatibility | Wood, Oil, Gas, Low Sulphur Coal |
Installation Requirements | 25mm clearance above flashing, silicone seal advised |
Warranty | Standard manufacturer warranty |
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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The Storm Collar Ø 125mm is an indispensable component for ensuring your chimney's resilience against weather elements. At National Flues, we pride ourselves on delivering high-quality, affordable chimney solutions to both retail and trade customers across the UK, with reliable delivery and excellent customer service.
The Storm Collar Ø 125mm is designed to ensure watertightness at the point where a chimney or flue passes through the roof, protecting the flashing from extreme weather.
National Flues is a leading supplier of high-quality fireplaces and flues across the UK, catering to both retail and trade customers. Renowned for competitive pricing and reliable delivery, National Flues ensures every product meets stringent standards for safety and performance.
