Pipe 800mm Ø 125
At a Glance
- - Robust, dual-layer stainless steel construction (304 outer, 316 inner, both 0.40mm thick)
- - Insulated with dense, compressed rockwool at 200kg/m³ for enhanced safety
- - Fully welded design for long-lasting durability
- - HETAS Approved and CE marked, meeting EN1856-1 T600 and T200 standards
- - Easy and secure installation using a Locking Band system

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 800mm Pipe Ø 125mm is engineered for excellence in performance and durability. Suitable for solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and oil/gas boilers, this pipe ensures maximum efficiency. The outer skin is made from high-grade 304 stainless steel, with the inner skin made from 316 stainless steel, both 0.4mm thick.
It’s insulated with dense, compressed rockwool at 200kg/m³, providing superior safety and performance. The fully welded construction guarantees longevity, while maintaining a safe distance of 50mm from combustible materials like wood and plasterboard. The TWPro Pipe is HETAS Approved and CE marked, meeting the EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20 standards.
Installation is straightforward with a Locking Band, ensuring secure connectivity between chimney parts.
SKU: 2-125-024
Technical Specifications | |
---|---|
Product Length | 800mm |
Pipe Diameter | 125mm |
Outer Material | 304 Stainless Steel (0.40mm) |
Inner Material | 316 Stainless Steel (0.40mm) |
Insulation | Compressed Rockwool at 200kg/mu00b3 |
Approvals | HETAS Approved, CE Marked (EN1856-1 T600 N1 W V2 L50040 G50 & EN1856-1 T200 W V2 L50040 O20) |
Minimum Distance To Combustibles | 50mm |
Connection Type | Locking Band |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. 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're proud to say that the TWPro 800mm Pipe Ø 125mm is one of our top-notch products, suitable for a wide range of solid fuel and gas appliances. Its robust build and reliable performance make it a popular choice among both retail and trade customers. Plus, with our unbeatable prices and dependable nationwide delivery, you can't go wrong!
The 800mm Pipe Ø 125mm is used to safely and efficiently vent smoke and gases from solid fuel, gas, and oil appliances like woodstoves and boilers.
TWPro is a recognized and trusted brand in the fireplace and flues industry, known for high-quality, HETAS Approved products that guarantee safety and performance.
