We use cookies to ensure a smooth, secure, and ever-improving experience on our website. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and let us now if you need any help!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
Testing Length 500mm Ø 125 (2-125-019)
Discover National Flues' premium Testing Length Flue Pipe, engineered for both solid fuel and gas/oil appliances. This TWPro model delivers exceptional performance with its twin wall construction, combining robust 304 and 316 grade stainless steel with high-density rockwool insulation. Ideal for wood stoves, oil boilers and more, this flue pipe is both HETAS Approved and CE marked, offering reliable safety and performance for your heating needs.
Hover to Zoom / Click for Gallery
In Stock
£73.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
500mm Testing Length Flue Pipe with integral test point and cap
Twin wall construction using 304 grade (outer) and 316 grade (inner) stainless steel
Compressed rockwool insulation (200kg/m³) for optimal thermal efficiency
HETAS Approved and CE marked for safety and industry compliance
Easy installation with Locking Band and a recommended 50mm clearance from combustibles
×
Email Product
Enter your email address to send the product details:
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.
The 500mm Testing Length Flue Pipe (⌀ 125mm) is specifically designed for solid fuel and gas/oil appliances, such as wood stoves, gas coal effect fires, and oil and gas boilers. Engineered with precision, it features an outer skin made from durable 304 grade stainless steel and an inner skin composed of 316 grade stainless steel, both with a thickness of 0.4mm. This twin wall pipe is insulated using compressed rockwool with a density of 200kg/m3, ensuring optimal thermal performance.
All components are fully welded, ensuring enhanced durability and safety. Maintains a recommended distance of 50mm from combustibles. The TWPro model is HETAS Approved and CE marked, guaranteeing compliance with industry standards.
Installation is straightforward using a Locking Band to secure the parts. Ensure a 50mm clearance from any flammable materials to ensure safe operation.
SKU: 2-125-019
Technical Specifications
Testing Length
500mm
Flue Diameter
u00d8 125mm
Inner Material
316L Stainless Steel (0.40mm thick)
Outer Material
304 Stainless Steel (0.40mm thick)
Insulation
Compressed Rockwool (200kg/mu00b3)
Approvals
HETAS, CE
Suitable Fuels
Wood, Oil, Gas, Low sulphur coal
Distance To Combustibles
50mm
System
TWPro
Installation is straightforward: Secure the components using a Locking Band and ensure a minimum clearance of 50mm from any combustible material. Follow the manufacturer's installation guidelines to guarantee safe operation. The integrated test point and cap allow for convenient gas and draft sampling, ensuring continued compliance with safety standards during and after installation.
This flue pipe can be used with solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and oil and gas boilers.
The outer skin is made from 304 grade stainless steel, and the inner skin is made from 316 grade stainless steel, both with a thickness of 0.4mm. It also features insulation made from compressed rockwool with a density of 200kg/m3.
Yes, the TWPro 500mm Testing Length Flue Pipe is HETAS Approved and also CE marked, ensuring compliance with high safety and performance standards.
The recommended distance to any combustible materials (such as wood or plasterboard) is 50mm.
The test point and cap allow safe and easy entry into the flue way for the purpose of testing gas and draft samples, ensuring your appliance operates efficiently.
Installation is simple using a Locking Band to secure the parts. Ensure a 50mm clearance from any combustible materials for safe operation.
Yes, the robust construction and compliance with industry standards make it suitable for both residential and commercial use.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.
Buyers Guide: Choosing the Right Testing Length 500mm Flue Pipe
When it comes to selecting the perfect flue pipe for solid fuel and gas appliances, the Testing Length 500mm Flue Pipe from National Flues stands out as a top choice. With its precision engineering and robust construction, this flue pipe is designed to ensure safe, efficient operation whether you are installing a wood stove, gas coal effect fire, or an oil/gas boiler.
Understanding the Product
At its core, the Testing Length 500mm Flue Pipe is built with twin wall construction. The outer layer is crafted from durable 304 grade stainless steel, while the inner layer uses 316 grade stainless steel, each with a thickness of 0.4mm. This dual-layer design is further enhanced with compressed rockwool insulation (density of 200kg/m³), which not only safeguards against heat loss but also ensures that your appliance operates at optimal efficiency. Its HETAS approval and CE marking are testaments to its compliance with stringent safety regulations.
Key Features and Their Benefits
- Robust Construction: The use of high-grade stainless steel layers creates a flue pipe that is resistant to corrosion and wear, ensuring longevity even in demanding environments.
- Superior Insulation: The high-density rockwool insulation helps maintain thermal efficiency, reducing energy loss and supporting a stable operating temperature.
- Safety Compliance: With HETAS approval and CE marking, you can be confident that this flue pipe meets high safety standards, providing reassurance for both residential and commercial installations.
- Ease of Installation: The product comes with an integrated test point and cap, designed for easy gas and draft sampling. A Locking Band ensures that the components remain securely in place while maintaining the recommended 50mm clearance from combustible materials.
Addressing Common Objections
Installation Concerns:
Many customers worry about the complexity of installing a flue pipe. However, this product is designed with simplicity in mind. The Locking Band system allows for quick and secure assembly, and the clear guidelines for maintaining a 50mm clearance from combustibles ensure that anyone can install it safely without requiring extensive technical knowledge.
Safety and Compliance:
In today’s market, safety is paramount. The HETAS Approved and CE marked status of this flue pipe means that it has passed rigorous safety tests and meets the essential standards required for residential and commercial installations. For those concerned about regulatory compliance, this product offers peace of mind that you are investing in a system that adheres to industry normatives.
Efficiency and Performance:
Efficiency is a significant concern for any heating system. The dual stainless steel layers combined with high-density insulation significantly reduce the risk of heat loss, ensuring that your appliance operates at optimal efficiency. This can translate to lower energy bills and improved performance over time.
Durability in Harsh Conditions:
Stainless steel is known for its resistance to rust and corrosion. This flue pipe, with its robust construction, is designed to withstand harsh weather and operational conditions, making it a reliable choice for long-term installations.
Why National Flues?
National Flues is a trusted name in the industry, renowned for delivering top-quality products at unbeatable prices. Our commitment to quality and safety is evident in every product we offer, backed by industry certifications and a nationwide delivery network. With secure online payments and dedicated customer support, National Flues is here to provide you with not just a product but a comprehensive solution for your heating appliance needs.
Our Testing Length 500mm Flue Pipe is not only a purchase but an investment in reliability, durability, and safety. Whether you are a DIY enthusiast or a professional installer, this flue pipe offers ease of use and high performance, making it a smart addition to your heating system.
Additional Considerations
Before making a purchase, ensure that your installation site meets all necessary prerequisites, including the crucial 50mm distance from any combustible materials. This clearance is vital for safe operation. Additionally, it is a good idea to review the installation instructions thoroughly and, if in doubt, consult a professional to verify that all parameters are met. Considering the longevity and performance benefits, opting for accessories that complement this flue pipe can further enhance your installation’s efficiency.
If you have any lingering questions or need further clarification on technical specifications and installation techniques, do not hesitate to reach out. Our expert support team is ready to assist you in making a well-informed decision.
Final Thoughts
In conclusion, the Testing Length 500mm Flue Pipe from National Flues offers an ideal blend of performance, safety, and durability. Its design ensures minimal heat loss while maintaining operational integrity, making it a reliable choice for any solid fuel or gas appliance installation. Every aspect—from its robust construction to the ease of installation—has been engineered with your needs in mind.
Invest in a flue pipe that is built to last, provides safety compliance, and offers ease of use. With National Flues, you can be certain of quality, performance, and support throughout the lifespan of your installation. Add to cart now or call 01670 206 999.
Compatible and other products that may be of interest...
