Free Delivery over £100+ 5on Trustpilot Browse our popular stoves Fast Mainland UK Delivery Buy stoves with install packs Call 01670 206 999 for help

Gas Cowl Ø 125 (2-125-092)

National Flues presents the Gas Cowl Ø 125 – a high-quality chimney flue terminal designed specifically for gas appliance venting. This innovative product ensures efficient and safe exhaust of gases from gas boilers, woodstoves, and other gas heating appliances. Read more...
Now only £67.99
Give us a call if you find it cheaper and we'll normally price match.
  • Fast deliveryMonday, November 17th*
  • Best PriceCall us to beat any price you found online.
  • Secure checkoutCard· Google/Apple Pay· Klarna· Paypal

 

Payment Options

At a Glance

  • Specifically designed for gas appliances
  • Premium stainless steel construction (Outer: 304, Inner: 316)
  • 40mm thick walls for robust durability
  • Superior thermal protection with compressed rockwool insulation (200kg/m³)
  • HETAS Approved and CE marked for safety and performance compliance
  • Easy, secure installation using the Locking Band
  • Maintains a required 50mm clearance from combustible materials

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: sales@nationalflues.com

The Gas Cowl Ø 125 is expertly designed for optimal performance with gas appliances. Ideal for use with woodstoves, gas coal effect fires, oil and gas boilers, and other gas appliances, this cowl ensures safe and efficient venting of exhaust gases. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both at a thickness of 0.4mm, it boasts exceptional durability and resistance to corrosion.

Between the layers, compressed rockwool insulation with a density of 200kg/m3 provides superior thermal protection. TJWPro Twin Wall Insulated Chimney parts, including this cowl, are fully welded and come with HETAS approval and CE marking for assured quality. A 50mm distance must be maintained from any combustible material, as mandated by safety standards.

Installation is straightforward with the use of a Locking Band, ensuring a secure fit.

SKU: 2-125-092

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
SKU2-125-092
DesignationEN1856-1 T600 N1 W V2 L50040 G50
Material - Outer304 Stainless Steel, 0.40mm thick
Material - Inner316 Stainless Steel, 0.40mm thick
InsulationCompressed Rockwool, 200kg/m³
ApprovedHETAS and CE
Distance To Combustibles50mm
Suitable FuelsGas, Oil, Wood, Low sulphur coal
CompatibilityGas appliances only
Installation MethodLocking Band for Twin Wall Insulated Chimney parts
When installing the Gas Cowl Ø 125, ensure you follow these guidelines: - Always maintain a minimum clearance of 50mm from any combustible materials. - Use the Locking Band provided to secure the Twin Wall Insulated Chimney parts firmly. - Double-check that all components are correctly aligned before final fixation. - Consult your local building regulations and, if necessary, hire a professional installer to ensure compliance with safety standards. - Regularly inspect the installation for signs of wear or misalignment to prevent future issues.

The Gas Cowl Ø 125 is suitable for use with woodstoves, gas coal effect fires, oil and gas boilers, and any other gas appliances.

Yes, the Gas Cowl Ø 125 is HETAS Approved, ensuring it meets stringent safety and performance standards.

The outer skin is constructed from 304 grade stainless steel, while the inner skin is made from 316 grade stainless steel, both at a thickness of 0.4mm. It also features compressed rockwool insulation with a density of 200kg/m3.

A minimum distance of 50mm from the outside of the flue to any combustible material (such as wood or plasterboard) must be maintained.

No, the Gas Cowl Ø 125 is specifically designed for gas appliances and is not suitable for solid fuel appliances.

The Gas Cowl Ø 125 is installed using a Locking Band, which secures the Twin Wall Insulated Chimney parts together.

The Gas Cowl Ø 125 is both CE marked and HETAS Approved, indicating that it meets high standards for safety and performance.

 

Call the Experts   8am-5pm
👀 7 people watching this