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The TWPro MB Flat Increasing Adaptor Ø 125-150mm is a reliable and high-quality solution engineered by TWPro for modern flue systems. Ideal for connecting woodstoves, gas boilers, oil burners, and solid fuel appliances, this adaptor offers a robust, certified option that complements your heating installation flawlessly. Enhance your setup with this premium, safety-certified, and efficient accessory designed to meet the demands of today’s dynamic heating solutions.
In Stock
£71.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
HETAS Approved and CE marked for safety compliance Constructed with 0.4mm thick 304 stainless steel (outer) and 316L stainless steel (inner) Flat increasing design offering a compact solution for transitioning between flue systems Insulated with dense, compressed rockwool (200kg/m³) for superior thermal performance Versatile use with woodstoves, oil boilers, gas boilers, and solid fuel appliances Includes a Locking Band for secure, easy installation
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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 TWPro MB Flat Increasing Adaptor Ø 125-150mm is a versatile and essential component for connecting your appliance outlet to a TWPro system or transitioning from single wall connecting flue or vitreous enamel to TWPro. Its flat design ensures a smooth and efficient transition over the shortest length. **Application**: Perfect for use with a variety of appliances including woodstoves, gas coal effect fires, oil boilers, gas boilers, and any solid fuel appliances. This adaptor ensures optimal performance and safety.**Construction**: Crafted with an outer skin of 0.4mm thick 304 stainless steel, coated in a high-temperature black finish.
The inner skin is made of 0.4mm thick 316-grade stainless steel. The component is fully insulated with compressed rockwool, providing a density of 200kg/m3, and all parts are fully welded for maximum durability. **Approvals**: TWPro products are HETAS Approved and CE marked, signifying compliance with strict European standards. Designation numbers: EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.**Installation**: Easy to install using the supplied Locking Band, ensuring a secure connection.
Maintain a safety clearance of 50mm from the flue's exterior to any combustible materials like wood or plasterboard.
SKU: 37-125-009
Technical Specifications
Adaptor Type
Flat Increasing Adaptor
Diameter Increase
u00d8 125mm to u00d8 150mm
Outer Material
304 Stainless Steel with high temperature black coating (0.4mm thick)
Inner Material
316L Stainless Steel (0.4mm thick)
Insulation
Compressed Rockwool, 200kg/mu00b3
Certifications
HETAS Approved, CE Marked
Installation Accessories
Includes Locking Band
Minimum Clearance
50mm from flue exterior to any combustible material
• Before beginning, verify that all parts and surfaces are clean and free from debris.
• Position the adaptor carefully to ensure a smooth connection between your appliance outlet and the TWPro system or transition flue.
• Secure the adaptor using the supplied Locking Band, ensuring it is firmly attached.
• Maintain a minimum clearance of 50mm from any combustible materials such as wood framing or plasterboard.
• Follow local building regulations and the detailed installation manual provided for compliance and safety.
• Double-check all connections after installation to ensure there are no gaps and that the adaptor is fully secured.
The adaptor increases from Ø 125mm to Ø 150mm, making it versatile for various installations.
Yes, the TWPro MB Flat Increasing Adaptor is HETAS Approved and CE marked.
Yes, it is suitable for use with woodstoves, gas coal effect fires, oil boilers, gas boilers, and any solid fuel appliances.
The outer skin is made from 304 stainless steel with a high-temperature black finish, and the inner skin is 316-grade stainless steel. It is insulated with compressed rockwool.
A clearance of 50mm must be maintained from the outside of the flue to any combustible materials like wood or plasterboard.
The adaptor is secured using a Locking Band, which is supplied with the product.
Its flat design enables a smooth and efficient transition with minimal required length, making it practical for compact installations.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Monday, May 19th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call.
If you need faster stove or fireplace delivery please also give us a call.
We can sometimes 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.
When selecting components for your flue system, every detail matters. The TWPro MB Flat Increasing Adaptor Ø 125-150mm is designed to provide a seamless and secure connection between your appliance outlet and TWPro systems, or to facilitate the transition from a single wall connecting flue or vitreous enamel to TWPro. This buyers guide offers an in-depth look at why this adaptor is an excellent choice for your heating needs, addressing common questions, installation tips, and the long-term benefits of choosing this solution.
Understanding the Product
The TWPro MB Flat Increasing Adaptor is engineered to increase the diameter of your flue from Ø 125mm to Ø 150mm. This flat design ensures that you do not need excessive additional length for a reliable performance, making it an ideal solution where space optimization is a priority. The robust construction, utilising 304 stainless steel on the outer layer and 316L stainless steel internally, guarantees durability, resistance to corrosion, and maintains high performance even under demanding conditions.
Key Features and Their Benefits
Versatile Connectivity: The adaptor is perfect for a variety of appliances including woodstoves, gas boilers, oil boilers, and solid fuel appliances. Whether you are upgrading an older system or designing a new setup, this adaptor bridges different materials and standards with ease.
Premium Construction: With its dual-layer construction, the product provides both strength and longevity. The outer 304 stainless steel is enhanced with a high-temperature black coating, while the inner layer made of 316L stainless steel ensures that corrosion is minimized and performance is maintained.
Enhanced Thermal Safety: Insulated with compressed rockwool at a density of 200kg/m³, it effectively reduces heat radiation and provides a safe barrier between the flue and any nearby combustibles. This feature plays a key role in ensuring the overall safety of your installation.
Ease of Installation: Installation is straightforward with the supplied Locking Band, ensuring that the adaptor is securely housed and maintained at the required 50mm clearance from combustible materials. This easy-to-follow installation process reduces the likelihood of errors and enhances overall system performance.
Addressing Common Objections
Concern: Installation Complexity
Some customers worry that adapting their current system might involve a complicated setup. However, the TWPro MB Flat Increasing Adaptor is engineered for simplicity. The intuitive design, along with the step-by-step instructions in the installation manual, means that even those with limited technical expertise can achieve a secure and compliant installation.
Concern: Compatibility and Safety
Another common concern is whether the adaptor will be compatible with different types of heating appliances and flue systems. Rest assured, this product is versatile enough to work with a wide range of heating solutions including woodstoves and gas boilers. Furthermore, it is HETAS Approved and CE marked, providing robust certification that meets rigorous European safety standards. This certification offers you peace of mind that you are installing a product that has been thoroughly tested and approved for safe use.
Concern: Durability and Long-term Performance
In the realm of heating solutions, longevity is paramount. The high-quality materials used in this adaptor ensure that it withstands the stresses of operation, including prolonged exposure to high temperatures and various atmospheric conditions. Its fully welded construction further enhances both its durability and the efficiency with which it maintains its insulating properties.
Installation Tips and Best Practices
Preparation: Before installation, clean all surfaces and inspect the adaptor for any damage. Ensure that the adjacent structures where the adaptor will be installed are free from debris and are compliant with the 50mm clearance requirement.
Step-by-Step Procedure:
• Begin by positioning the adaptor to bridge the gap between your appliance outlet and the TWPro system.
• Secure the adaptor using the provided Locking Band, checking that all connections are made firmly.
• Maintain a minimum clearance of 50mm between the adaptor and any combustible materials.
• Recheck the installation to confirm that it is safe and that there is no risk of accidental movement or disconnection.
Final Checks: After installation, it’s prudent to verify that the entire system functions as intended. A successful installation should exhibit no visible gaps and should align perfectly with both your flue system and the related appliance outlet. This ensures not only optimal performance but also a safe operating environment.
Final Thoughts
The TWPro MB Flat Increasing Adaptor Ø 125-150mm represents a high-quality, safety-certified component that brings together adaptability, durability, and ease of installation. Its innovative flat design minimises the installation footprint while addressing the broad range of heating needs. With superior materials, expert construction, and thoughtful design, it stands out as an indispensable component for modern flue systems.
Choosing this adaptor means investing in a product that has been meticulously engineered to deliver both performance and peace of mind. Every element, from its high-grade stainless steel construction to its robust insulation and secure Locking Band, has been designed with your safety and convenience in mind.
By selecting this adaptor, you are not just acquiring a product, but making a long-term investment in the safety and efficiency of your heating system. Whether you are a professional installer or a homeowner keen on ensuring that every installation detail is taken care of, this adaptor provides the reliability you need.
Add to cart now or call 01670 206 999.
Secure your adaptor today and guarantee a safe, efficient installation for your heating solution.
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