TWPro MB - Anti-wind Cowl - Ø 100
At a Glance
- Robust dual-layer construction with 304 and 316 grade stainless steel
- High-temperature black coated outer skin for enhanced durability
- Compressed rockwool insulation ensuring excellent thermal efficiency
- HETAS approved & CE marked for ultimate safety and compliance
- Designed for diverse appliances including woodstoves and oil/gas boilers

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 MB Anti-Wind Cowl, with its 100mm (4-inch) diameter, is designed for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, oil boilers, and gas boilers. The outer skin is constructed from 304-grade stainless steel, 0.4mm thick, and coated in a high-temperature black finish. The inner skin is made from 316-grade stainless steel, also 0.4mm thick.
Insulation is provided by compressed rockwool with a density of 200kg/m3, ensuring excellent thermal efficiency. This twin-wall insulated chimney part is fully welded for durability and meets rigorous standards with HETAS approval and CE marking. Maintain a 50mm distance from combustibles, and secure the parts using the supplied Locking Band.
Compliant with standards EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, the TWPro MB Anti-Wind Cowl offers reliable performance and safety.
SKU: 37-100-091
Technical Specifications | |
---|---|
Model | TWPro MB Anti-Wind Cowl - u00d8 100 |
Outer Material | 304 Stainless Steel, 0.4mm, High Temperature Black Coated |
Inner Material | 316 Stainless Steel, 0.4mm |
Insulation | Compressed Rockwool, 200kg/mu00b3 |
Approvals | HETAS / CE |
Standards | EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 P1 W V2 L50040 O20 |
Distance To Combustibles | 50mm |
Applications | Woodstoves, Gas Coal Effect Fires, Oil Boilers, Gas Boilers |
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
At National Flues, we proudly offer the TWPro MB Anti-Wind Cowl Ø100. This reliable and robust cowl provides excellent wind and rain protection for your chimney flue. With nationwide delivery and exceptional prices, we serve both retail and trade customers with the highest level of service.
The TWPro MB Anti-Wind Cowl is designed to protect chimney flues from wind and rain, ensuring the safe and efficient operation of solid fuel and gas/oil appliances.
TWPro is a trusted brand in the chimney and flue industry, known for its high-quality, durable, and reliable products designed to meet rigorous safety and performance standards.
