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TWPro MB - Single Wall to Twin Wall Increaser - Ø 175-Ø 200 (37-175-002)
National Flues presents the TWPro MB - Single Wall to Twin Wall Increaser, a premium chimney adapter designed to effortlessly bridge 175mm single wall pipes and 200mm twin wall insulated chimneys. This high-performance increaser is perfect for a range of heating solutions including wood stoves, oil and gas boilers, and coal effect fires. Trust in National Flues for reliable flue system solutions, quality craftsmanship, and competitive value.
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In Stock
£32.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Premium dual stainless steel construction (316L inner, 304 outer with high-temperature black finish)
Suitable for solid fuel, gas, and oil appliances
HETAS Approved and CE marked for safety and compliance
Includes a secure Locking Band for easy installation
Provides a safe 50mm clearance from combustibles
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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.
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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 - Single Wall to Twin Wall Increaser is an essential component for your chimney flue system, especially when upgrading from a 175mm single wall pipe to a 200mm twin wall insulated chimney. Designed for use with solid fuel, gas, and oil appliances, including wood stoves, gas coal effect fires, and boilers, this increaser ensures optimal performance and safety. Constructed with a durable outer skin of 304 grade stainless steel at 0.4mm thickness, it features a high-temperature black finish for added durability.
The inner skin, made from 316 grade stainless steel, also at 0.4mm thickness, ensures longevity. The rockwool insulation boasts a density of 200kg/m³, providing excellent thermal protection. Fully welded parts and a safe distance of 50mm to combustibles make installation straightforward and secure.
The TWPro MB Increaser is HETAS Approved and CE marked, with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, ensuring it meets the highest safety and quality standards. Installation is simplified with the included Locking Band, ensuring a secure and reliable fit.
SKU: 37-175-002
Technical Specifications
SKU
37-175-002
Size
u00d8 175 to u00d8 200
Inner Construction
316L Stainless Steel (0.40mm thick)
Outer Construction
304 Stainless Steel (0.40mm thick, High Temperature Black Coated)
Insulation
Rockwool with density of 200kg/mu00b3
Approvals
HETAS / CE
Distance To Combustibles
50mm
System Compatibility
TWPro Black
Designation Numbers
EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20
Installation of the TWPro MB Increaser is designed to be straightforward and safe. Ensure that a clearance of 50mm is maintained between the flue and any combustible material such as wood or plasterboard. The increaser comes with an integrated Locking Band which must be securely fastened during installation. Prior to fitting, double-check that the system meets local building regulations and standards. For optimal performance, ensure that each connection is tight and mechanically sound. This will not only contribute to the system’s efficiency but also guarantee the high safety standards the product is known for.
The TWPro MB Increaser is suitable for solid fuel, gas, and oil appliances, including wood stoves, gas coal effect fires, oil boilers, and gas boilers.
The outer skin is 304 grade stainless steel with a high-temperature black finish, and the inner skin is 316 grade stainless steel. The insulation is compressed rockwool with a density of 200kg/m³.
Yes, the TWPro MB Increaser is HETAS Approved and CE marked, meeting stringent safety and performance standards.
A safety distance of 50mm should be maintained from the outside of the flue to any combustible materials like wood or plasterboard.
Installation is easy with the included Locking Band, which secures the parts together. Just ensure a 50mm clearance from combustibles.
This designation indicates compliance with specific European standards for chimney components, ensuring they meet high safety, efficiency, and durability criteria.
Absolutely. This increaser is designed to be highly durable and versatile, suitable for both small domestic installations and larger, more complex systems.
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.
Read our review in our TWPro MB - Single Wall to Twin Wall Increaser - Ø 175-Ø 200 buyers guide
Introduction
The TWPro MB Increaser from National Flues is a top-tier solution designed to meet the evolving needs of modern flue systems. Specifically engineered to connect 175mm single wall pipes to 200mm twin wall insulated chimneys, this increaser is truly an essential component for professionals and homeowners alike. The product's construction utilises premium stainless steel and modern insulation techniques, making it not only robust but also highly efficient in maintaining the performance of your heating appliance.
Core Features and Their Benefits
Robust Construction:
- The TWPro MB Increaser is manufactured with a dual-layer of stainless steel. The inner layer, made from 316L stainless steel, ensures excellent corrosion resistance, while the outer layer of 304 stainless steel with a high-temperature black finish provides additional durability. This combination guarantees that the increaser can withstand harsh environmental conditions and prolonged exposure to high temperatures.
Versatile Compatibility:
- Designed to be used with solid fuel, gas, and oil based appliances, this increaser offers a versatile application. Whether you run a wood stove, oil boiler, or gas appliance, the TWPro MB adapts effortlessly to your system setup, making it an indispensable part of your chimney flue solution.
Safety and Compliance:
- Holding HETAS and CE approvals, the product complies with stringent European safety standards. The inclusion of a 50mm clearance to combustibles ensures enhanced safety, reducing the risk of overheating or potential fire hazards within the flue system.
Ease of Installation:
- Featuring an integrated Locking Band, installation is significantly simplified. This design innovation ensures that the increaser locks securely into place during installation, reducing the likelihood of misalignment or loose connections that could compromise the overall system integrity.
Technical Specifications at a Glance
- Dimensions: Transitioning from 175mm to 200mm, the product is engineered to provide a precise fit.
- Materials: With a 0.40mm thickness for both inner (316L) and outer (304) stainless steel layers, the construction is both robust and long-lasting.
- Insulation: High-density rockwool (200kg/m³) is used to optimise thermal performance and safety.
- Approvals: The product is HETAS Approved and CE marked, ensuring it adheres to high safety and performance standards.
These technical specifics not only illustrate the quality of the TWPro MB Increaser but also affirm its performance credentials in demanding operational environments.
Installation Guidelines and Best Practices
Installing a chimney increaser is not just about connecting pipes—it's about ensuring the entire system functions safely and efficiently. Here are some essential steps and tips to guide you through:
1. Site Preparation: Before installation, measure the clearance between the flue and any combustible materials. Ensure you maintain the recommended 50mm clearance throughout.
2. Verify Components: Check that all components, including the Locking Band, are included and undamaged. Inspecting the integrity of the stainless steel surfaces can prevent installation issues later on.
3. Secure Fitting: Use the Locking Band to create a tight, secure connection between the 175mm single wall and 200mm twin wall sections. This step is crucial as it prevents any potential gaps that might compromise the thermal insulation of your system.
4. Compliance Check: Always refer to the local building regulations to ensure your installation method meets all necessary safety standards.
5. Final Inspection: Once the installation is complete, perform a thorough check. Ensure that the joint is secure and that the clearance to combustibles is uniformly maintained around the entire installation.
Addressing Common Concerns
**Q: Will the TWPro MB Increaser be compatible with my heating appliance?
A:** Yes, this increaser is designed to work efficiently with a variety of heating appliances including wood stoves, negative flue gas systems, oil and gas boilers, and even coal effect fires.
**Q: Is installation something I can manage myself?
A:** Absolutely. The product is designed for ease of installation, featuring a Locking Band that simplifies the connection process. However, if you have any concerns, it is always advisable to consult a professional installer.
**Q: What about safety? Are there any extra precautions?
A:** The product maintains a 50mm distance from combustibles for added safety. This clearance minimizes the risk of heat transmission to nearby materials. Nonetheless, always adhere to manufacturer guidelines and local regulations for optimal safety.
Why Choose the TWPro MB Increaser?
Choosing the right chimney adapter is vital for the effective and safe operation of your appliance. The TWPro MB Increaser stands out for its robust construction, versatile application, and easy installation. By selecting a product that is HETAS and CE approved, you are investing in quality and peace of mind. Whether you are upgrading an existing system or installing a new one, this increaser is built to keep your heating system operating at peak performance, providing reliability and safety for years to come.
Conclusion
The TWPro MB Increaser is not just an accessory—it is a high-performance solution tailored to meet the challenging demands of modern heating systems. With its premium materials, certified safety features, and simple installation process, it offers exceptional value and durability. National Flues is committed to providing reliable, top-quality products that meet the highest industry standards. If you are looking for an effective way to upgrade your chimney flue system, this increaser is the perfect choice. It is engineered for efficiency, designed with safety in mind, and built to deliver long-term performance. Embrace the benefits of a secure and efficient flue system by choosing the TWPro MB Increaser today. Add to basket now or call 01670 206 999.
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