Pipe 250mm Ø 175
At a Glance
- 250mm Diameter TWPro Chimney Flue Pipe
- Suitable for solid fuel, gas and oil appliances
- Dual stainless steel construction (316L inner, 304 outer) with 0.40mm thickness
- Insulated with compressed rockwool (200kg/m³) for superior heat retention
- HETAS Approved and CE marked for safety and compliance
- Secure Locking Band system for quick and stable installation
- Requires a 50mm clearance from combustible materials for safe operation

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 250mm Diameter TWPro Chimney Flue Pipe is an exceptional choice for anyone needing a reliable flue system for solid fuel, gas, and oil appliances. Whether you're using a wood stove, gas coal-effect fire, or an oil/gas boiler, this flue pipe is designed to meet your needs. Made from robust 304 grade stainless steel for the outer skin and 316 grade stainless steel for the inner skin, each at 0.4mm thickness, this flue pipe offers superior durability.
The internal insulation of compressed rockwool has a density of 200kg/m3, ensuring excellent heat retention and safety. Approved by HETAS and CE marked, this pipe meets high safety and efficiency standards. All components are fully welded and secure easily using a Locking Band.
Remember to maintain a 50mm distance from any combustible material for safe installation.
SKU: 2-175-012
Technical Specifications | |
---|---|
Dimensions | 250mm Diameter, Nominal length 175mm with effective installed length of 215mm |
Materials | Inner: 316L Stainless Steel (0.4mm thick); Outer: 304 Stainless Steel (0.4mm thick) |
Insulation | Compressed Rockwool, density 200kg/mu00b3 |
Approvals | HETAS / CE |
System | TWPro Twin Wall Insulated Chimney |
Installation Clearance | 50mm from combustibles |
Connection | Locking Band System |
Fuel Compatibility | Wood, Oil, Gas, Low Sulpher Coal |
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 pride ourselves on providing top-quality products at unbeatable prices, and our 250mm Diameter TWPro Chimney Flue Pipe is no exception. Reliable delivery across the UK makes it easy for both retail and trade customers to get exactly what they need.
This flue pipe is designed to safely and efficiently vent smoke and gases from solid fuel, gas, and oil-fired appliances.
National Flues is a leading UK supplier of high-quality fireplaces and flues, offering competitive prices, reliable nationwide delivery, and excellent customer service for both retail and trade customers.
