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TWPro MB - Storm Collar - Ø 100 (58-100-082)

National Flues presents the TWPro MB Storm Collar Ø 100 – your dependable solution for ensuring water tightness where your chimney flue passes through the roof. This high-quality, HETAS-approved storm collar utilises premium stainless steel and advanced rockwool insulation, making it an ideal accessory for solid fuel appliances, woodstoves, and gas/oil burners. Read more...
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At a Glance

  • Premium 304 & 316 grade stainless steel construction
  • Fully welded design for enhanced durability
  • Compressed rockwool insulation for superior thermal efficiency
  • HETAS approved and CE marked for guaranteed safety
  • Engineered to provide ultimate water tightness for roof penetrations

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

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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.
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  • 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 TWPro MB Storm Collar Ø 100 is designed for ultimate water tightness in chimney flues, especially where they pass through the roof. Suitable for a range of appliances including woodstoves, gas fires, and oil boilers, this versatile collar protects against extreme weather conditions. Constructed with 304 grade stainless steel for the outer skin and 316 grade stainless steel for the inner skin, both layers boast a 0.4mm thickness ensuring durability and longevity.

The insulation consists of compressed rockwool with densities of 200kg/m³ and 128kg/m³ respectively, offering excellent thermal efficiency. All components are fully welded to provide robust construction. The product holds HETAS approval and CE marking, meeting all safety and performance standards.

For best installation results, secure the storm collar about 25mm above the flashing’s highest point and seal with silicone to ensure complete water tightness.

SKU: 58-100-082

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
DiameterØ 100 mm
Outer Material304 grade stainless steel
Inner Material316 grade stainless steel
Skin Thickness0.4 mm each layer
InsulationCompressed rockwool (densities: 200kg/m³ & 128kg/m³)
ApprovalsHETAS approved, CE marked
Installation RecommendationSecure approximately 25mm above flashing; apply silicone sealant along the top edge
For best performance, position the TWPro MB Storm Collar approximately 25mm above the highest portion of your roof flashing. Prior to installation, ensure the surface is clean and dry for optimal adhesion of the silicone sealant. Once positioned, apply a continuous bead of high-quality silicone around the top edge to establish a watertight bond. Always adhere to manufacturer guidelines and local building regulations to maintain safety standards. Additionally, ensure that there is a minimum clearance of 50mm from combustibles when installing with the TWPro system.

It ensures water tightness where a chimney flue passes through the roof and protects the flashing from extreme weather conditions.

It is suitable for solid fuel and gas/oil appliances such as woodstoves, gas fires, oil burners, and gas boilers.

The outer skin is made from 304 grade stainless steel, and the inner skin is made from 316 grade stainless steel, each with a thickness of 0.4mm.

Secure it approximately 25mm above the highest part of the flashing and apply a silicone bead around the top edge for complete water tightness.

It is HETAS approved and CE marked, meeting all current safety and performance standards.

It uses compressed rockwool insulation with densities of 200kg/m³ and 128kg/m³ for excellent thermal performance.

The minimum distance to combustibles is 50mm for TWPro and 60mm for the KC system.

 

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