TWPro MB - Rotating Cowl - Ø 125
At a Glance
- Effective down draft mitigation to improve chimney performance
- Constructed with robust 304 and 316 stainless steel for long-lasting durability
- High temperature black coated outer skin resists harsh conditions
- Compliant with HETAS and CE standards for reliable safety
- Secured installation with an included Locking Band ensuring a tight, secure fit
- Suitable for solid fuel and gas/oil appliances including woodstoves, oil boilers and 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 - Rotating Cowl - Ø 125 is designed to mitigate the effects of down draft in your chimney system. Suitable for solid fuel and gas/oil appliances—including woodstoves, gas coal effect fires, oil boilers, and gas boilers—this rotating cowl is a versatile addition. The outer skin is constructed from 304 stainless steel with a 0.4mm thickness, finished in a high-temperature black coating.
The inner skin is made from 316-grade stainless steel, also 0.4mm thick. For insulation, the cowl uses compressed rockwool with a density of 200kg/m3, ensuring effective thermal protection. Each component is fully welded for durability.
Notably, the TWPro MB maintains a 50mm distance from combustibles and is compliant with HETAS and CE standards. Installation is straightforward with the included Locking Band, ensuring secure assembly. Adhering to designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, this product meets stringent safety and performance criteria.
SKU: 37-125-094
Technical Specifications | |
---|---|
SKU | 37-125-094 |
Outer Material | 304 Stainless Steel, 0.4mm thick, High Temperature Black Coated |
Inner Material | 316L Stainless Steel, 0.4mm thick |
Insulation | Compressed Rockwool, density 200kg/m3 |
Safety Clearance | 50mm from combustibles |
Approvals | HETAS / CE |
Designation | EN1856-1 T600 N1 W V2 L50040 G50 / EN1856-1 T200 P1 W V2 L50040 O20 |
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.
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National Flues Ltd Verdict
The TWPro MB - Rotating Cowl is a top-tier choice for enhancing your chimney system. With HETAS approval and a robust stainless steel construction, this rotating cowl offers reliable performance. We deliver nationwide and serve both retail and trade customers.
The TWPro MB - Rotating Cowl is designed to counteract the effects of down drafts in chimney systems, enhancing efficiency and safety in solid fuel and gas/oil appliances.
TWPro is a respected name in the chimney and flue industry, offering products that are HETAS approved and CE marked for quality and safety.
