TWPro MB - Gas Cowl - Ø 125
At a Glance
- - Premium 304-grade stainless steel outer skin with high-temperature black finish
- - Durable 316-grade stainless steel inner panel
- - Highly dense 200kg/m³ rockwool insulation for superior thermal performance
- - HETAS and CE approved for safety and reliability
- - Easy installation with a secure locking band
- - Versatile design compatible with a range of gas and oil appliances

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 - Gas Cowl Ø 125mm is expertly crafted for use with a variety of gas and oil appliances, such as gas stoves, oil boilers, and gas coal effect fires. This versatile gas cowl ensures your chimney operates efficiently and safely. Constructed with a robust 304-grade stainless steel outer skin, coated with a high-temperature resistant black finish, and an inner skin of premium 316-grade stainless steel, you can rest assured of its durability and longevity.
The highly dense compressed rockwool insulation at 200kg/m³ offers superior thermal resistance, ensuring maximum safety with a 50mm clearance to combustible materials. Fully welded parts ensure a strong and durable assembly. Approved by HETAS and CE marked, the TWPro MB meets the highest standards for performance and safety.
Installation is straightforward, thanks to the provided locking band for securing the parts together. Ensure a 50mm distance from combustibles is maintained during installation to guarantee safety and optimal performance.
SKU: 37-125-092
Technical Specifications | |
---|---|
SKU | 37-125-092 |
Dimensions | u00d8125mm |
Outer Material | 304-grade stainless steel with high-temperature black finish |
Inner Material | 316-grade stainless steel |
Insulation | Compressed rockwool, 200kg/mu00b3 |
Approved | HETAS / CE |
Clearance To Combustibles | 50mm |
Locking Mechanism | Supplied locking band |
Suitable Fuels | Gas, Oil, Wood, Low sulphur coal |
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
At National Flues, we believe in providing the best and most reliable fireplace and flue products to our customers. The TWPro MB - Gas Cowl Ø 125mm stands out with its superior construction and excellent performance under various conditions. Whether you’re a retail or trade customer, we offer unbeatable prices and dependable nationwide delivery!
The TWPro MB - Gas Cowl Ø 125mm is designed to enhance the efficiency and safety of chimneys used with gas and oil appliances.
National Flues is a leading UK supplier of fireplaces and flues, known for unbeatable prices, reliable delivery, and excellent customer service for both retail and trade customers.
