TWPro GREY - Storm Collar - Ø 125
At a Glance
- Robust design for severe weather protection
- Constructed with corrosion-resistant 304 and 316L stainless steel
- Includes high-density compressed rockwool insulation (200kg/m³)
- HETAS approved and CE marked for safety
- Suitable for wood, oil, gas, and low sulphur coal appliances
- Ensures a water-tight seal at roof flashings
- Easy installation with a secure Locking Band

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 TWPro GREY - Storm Collar Ø 125 is crafted to enhance the longevity and efficiency of your chimney system. Designed for use with solid fuel, gas, and oil appliances—including woodstoves, gas coal effect fires, and oil and gas boilers—this storm collar ensures immaculate water-tightness and offers superior protection against severe weather conditions.Constructed with an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, both 0.4mm thick, the TWPro collar boasts impressive durability and resistance to corrosion. It features compressed rockwool insulation with a density of 200kg/m³, providing excellent thermal insulation and a safe distance of 50mm from combustibles.Approved by HETAS and CE marked, the TWPro adheres to stringent safety standards with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.
Installation is straightforward, as the TWPro components are secured using a Locking Band. Remember to maintain a 50mm clearance from any combustible materials such as wood or plasterboard.Ideal for ensuring water-tightness at the roof passage, the collar is to be installed about 25mm above the highest part of the flashing. Apply a bead of silicone around the top edge and flue for an extra layer of protection against water.
SKU: 56-125-082
Technical Specifications | |
---|---|
SKU | 56-125-082 |
Size | u00d8 125 |
Outer Material | 304 Stainless Steel (0.40mm) |
Inner Material | 316L Stainless Steel (0.40mm) |
Insulation | Compressed Rockwool, 200kg/mu00b3 |
Approvals | HETAS / CE |
Fuel Compatibility | Wood, Oil, Gas, Low sulphur coal |
Installation Clearance | 50mm from combustibles |
Installation Position | 25mm above flashing |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. 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.
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National Flues Ltd Verdict
The TWPro GREY - Storm Collar Ø 125 is an outstanding choice for both retail and trade customers. Its high-quality construction and advanced design ensure excellent performance and durability. With our reliable nationwide delivery and rarely beaten prices, National Flues guarantees satisfaction.
The TWPro GREY - Storm Collar Ø 125 is used to ensure water-tightness where the chimney flue passes through the roof, protecting the flashing from severe weather conditions.
National Flues specialises in providing high-quality chimney systems and components, serving both retail and trade customers nationwide with competitive pricing and reliable delivery.
