TWPro MB - Rotating Cowl - Ø 150
At a Glance
- - Versatile performance for solid fuel, gas, and oil appliances
- - Constructed with a 304 stainless steel outer layer (high temperature black coated) and a 316 grade stainless steel inner layer
- - Rotating cover design that effectively reduces chimney down drafts
- - Fully welded structure providing robust and long-lasting durability
- - Dense, compressed rockwool insulation (200kg/m³) for optimal thermal efficiency
- - Safe installation with a mandatory 50mm clearance from combustibles
- - Approved to HETAS and CE standards, ensuring industry-compliant safety

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 150 is meticulously designed to handle the complexities of modern chimney systems. Suitable for solid fuel, gas, and oil appliances—including woodstoves, gas coal effect fires, oil boilers, and gas boilers—this cowl brings versatility and reliability. Constructed with a 304 stainless steel outer skin, coated with a high-temperature black finish, and a robust 316 grade stainless steel inner skin, it promises longevity and superior performance.
The insulation consists of dense, compressed rockwool (200kg/m3) ensuring optimal thermal protection. This cowl maintains a safe distance of 50mm from any combustible materials and is fully welded for strength. Approved by HETAS and CE marked, this product meets industry standards with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.
Installation is a breeze with the supplied Locking Band, which secures the twin wall insulated chimney parts seamlessly.
SKU: 37-150-094
Technical Specifications | |
---|---|
SKU | 37-150-094 |
Product Name | TWPro MB - Rotating Cowl - u00d8 150 |
Designations | EN1856-1 T600 N1 W V2 L50040 G50 | EN1856-1 T200 P1 W V2 L50040 O20 |
Outer Material | 304 Stainless Steel with High Temperature Black Coating |
Inner Material | 316 Stainless Steel |
Insulation | Dense, compressed rockwool (200kg/mu00b3) |
Fuels Suitable | Wood, Oil, Gas, Low sulphur coal |
Clearance To Combustibles | 50mm |
Approvals | HETAS, CE Mark |
Installation | Includes a Locking Band for secure assembly |
Finish | High temperature black finish |
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 TWPro MB Rotating Cowl - Ø 150 is a top-notch solution for enhancing your chimney system, reducing down drafts, and improving efficiency. Ideal for both retail and trade customers, National Flues proudly delivers this product nationwide, meeting all your flue and fireplace needs.
The TWPro MB Rotating Cowl is designed to improve chimney performance by reducing down drafts and increasing efficiency for various fuel-based appliances.
National Flues is a trusted supplier of fireplaces and flues, offering competitive pricing, reliable nationwide delivery, and tailored solutions for both retail and trade customers.
