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TWPro MB - Single Wall to Twin Wall Increaser - Ø 100-125mm (37-100-002)
The TWPro MB Single Wall to Twin Wall Increaser is an essential chimney adaptor designed and built by TWPro. This high-quality product offers a seamless transition between single wall flue pipes and twin wall insulated systems, making it ideal for woodstoves, gas coal-effect fires, oil boilers, and more. Experience reliability and efficiency with this certified component that delivers exceptional performance, ensuring safety and durability. Explore additional optional accessories to complement your flue system for a fully customised installation.
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In Stock
£31.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Robust stainless steel construction (304 outer with high-temperature black coating and 316 inner)
Superior thermal insulation using compressed rockwool (200kg/m3 density)
HETAS approved and CE marked for safety and compliance
Easy installation with included Locking Band
Suitable for a range of appliances including woodstoves, gas, oil, and low sulphur coal systems
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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 - Single Wall to Twin Wall Increaser (Ø 100-125mm) is a versatile and essential component for connecting single wall flues to twin wall insulated chimney systems. Designed for use with solid fuel, gas, and oil appliances such as woodstoves, gas coal-effect fires, and boilers, this adaptor ensures a smooth and secure transition. Constructed with a robust 304 stainless steel outer skin coated in a high-temperature black finish, and a durable 316 grade stainless steel inner skin, this increaser guarantees longevity and reliability.
The insulation consists of compressed rockwool with a density of 200kg/m3, ensuring exceptional thermal performance. Fully welded for enhanced durability, the TWPro MB is HETAS approved and CE marked, meeting stringent safety and quality standards. Installation is straightforward with the included Locking Band, and maintaining the required 50mm distance from combustible materials ensures a safe setup.
SKU: 37-100-002
Technical Specifications
Model
TWPro MB - Single Wall to Twin Wall Increaser
Size
u00d8 100-125mm
Outer Material
304 Stainless Steel with High-Temperature Black Coating (0.40mm thick)
Inner Material
316L Stainless Steel (0.40mm thick)
Insulation
Compressed Rockwool, Density 200kg/m3
Approval
HETAS / CE
Compatible Fuels
Wood, Oil, Gas, Low Sulphur Coal
Minimum Distance To Combustibles
50mm
Installation
Includes Locking Band for secured setup
Install the TWPro MB Increaser with ease using the included Locking Band. Begin by ensuring that your appliance outlet is clean and free from debris. Securely attach the increaser to the existing single wall flue, then connect it to the twin wall insulated system. Maintain a minimum distance of 50mm from any combustible materials to meet safety regulations. Follow any supplementary instructions provided in the user manual for best results. For those who are unsure, always consult a professional installer to verify correct positioning and secure fitting.
The TWPro MB Increaser is compatible with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, oil boilers, and gas boilers.
The outer skin is made of 304 stainless steel with a high-temperature black finish, while the inner skin is constructed from 316 grade stainless steel. The insulation is composed of compressed rockwool with a density of 200kg/m3.
The increaser can be quickly and securely installed using the included Locking Band. Ensure a 50mm distance from any combustible materials during installation.
Yes, the TWPro MB Increaser is HETAS approved and CE marked, ensuring it meets high standards for safety and quality.
The compressed rockwool insulation with a density of 200kg/m3 provides superior thermal performance, ensuring the safety and efficiency of your flue system.
Maintaining a 50mm distance from combustibles such as wood and plasterboard prevents the risk of fire and ensures the safe operation of your flue system.
Yes, this increaser can be used both indoors and outdoors, thanks to its robust construction and weather-resistant finish.
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 100-125mm buyers guide
TWPro MB Single Wall to Twin Wall Increaser Buyers Guide
The TWPro MB Increaser is a critical component that enhances the performance and safety of your chimney and flue system. This comprehensive guide provides you with all the information you need to understand, install, and optimise your new flue adaptor. Whether you are a homeowner or a professional installer, this guide covers every aspect from material details and installation instructions to safety precautions and optional accessory considerations.
Why Choose the TWPro MB Increaser?
When selecting a flue system upgrade, it is imperative to invest in a product that guarantees reliability and compliance. The TWPro MB Increaser is engineered with robust 304 stainless steel outer skin and a durable 316L stainless steel inner skin. These metals are chosen not only for their corrosion resistance but also for their ability to withstand high temperatures, making them ideal for a range of fuel appliances. With a fully welded design and compressed rockwool insulation boasting a high density of 200kg/m3, this increaser is engineered to provide superior thermal performance and safety.
Key Benefits Include:
- Enhanced durability and longevity due to high-quality material selection.
- Improved thermal efficiency that ensures safe operation under high temperatures.
- Certified compliance with HETAS and CE standards, ensuring the product meets stringent UK safety regulations.
- Quick and secure installation with the included Locking Band.
Understanding the Technical Specifications
Before you install, it is vital to review the technical specifications to ensure the TWPro MB Increaser meets the needs of your system. With a diameter range from 100mm to 125mm and a robust material construction, this product is suited for solid fuel, gas, and oil appliances. The unique combination of outer and inner stainless steel materials along with high-performance rockwool insulation ensures that your chimney system operates efficiently, even under the stresses of regular use.
Installation: A Guide for a Smooth Setup
Proper installation is essential to maximise the efficiency and longevity of your flue system. Follow the step-by-step instructions outlined below:
1. Preparation: Ensure that the flue pipe is correctly installed and free from any debris. Verify that a stable and level setup is available for the connection.
2. Fitting the Increaser: Attach the TWPro MB Increaser securely to the single wall flue pipe. Make sure there is a perfect alignment so that the transition to the twin wall insulated system is seamless.
3. Securing the Connection: Use the provided Locking Band to fasten the connection. This ensures that the increaser remains fixed in place and can easily withstand vibrations or shifts during operation.
4. Safety Precautions: Maintain a minimum distance of 50mm from any combustible materials. This gap is crucial to prevent heat transfer that could lead to potential fire hazards.
5. Final Check: Once installed, double-check all connections for tightness and proper alignment to guarantee optimal performance.
Consideration of Optional Accessories
While the TWPro MB Increaser is fully functional as a standalone component, there are several optional accessories that you might consider to enhance your overall flue system. These optional accessories include additional insulation kits, extended locking bands for extra security, flue supports to ensure stability in larger installations, and specialized adaptor fittings to accommodate unique chimney configurations. Investing in these options can provide added peace of mind and ensure your installation is tailor-made for your specific requirements.
Handling Common Objections
Cost vs. Quality: It is understandable that budget constraints may make expensive components seem daunting. However, investing in the TWPro MB Increaser means you are choosing a product that adheres to the highest safety and quality standards, minimising long-term risks and maintenance costs.
Installation Complexity: Some may worry about the installation process. Rest assured, the design of the increaser and its accompanying Locking Band make the installation process straightforward. For those not comfortable with DIY installations, professional installation is always a recommended option to ensure safety and perfection in setup.
Durability Concerns: With combustion appliances subjecting flue systems to extreme conditions, durability is a valid concern. The TWPro MB Increaser is built to last, using top-grade stainless steel and rigorous welding procedures that ensure it remains operational even in harsh environments.
The TWPro Advantage
TWPro is synonymous with quality and reliability. With a reputation built on trust among homeowners and professionals alike, TWPro’s products are not only designed for peak performance but also for seamless integration with existing systems. This increaser is no exception, offering a proven, cost-effective solution that ensures the longevity of your chimney system along with enhanced safety features.
By choosing the TWPro MB Increaser, you are not only investing in a product but also in the assurance of quality craftsmanship and dedication to safety. Each component is critically tested and certified, providing you with the confidence that your flue system will perform optimally and safely over the years.
Final Thoughts
The TWPro MB Single Wall to Twin Wall Increaser is a must-have for anyone looking to seamlessly upgrade their flue system. Its robust design, superior insulation, and ease of installation make it an essential component for modern heating appliances. The optional accessories available can further enhance system performance, offering custom solutions tailored to specific installation needs.
For additional support, TWPro provides comprehensive installation guides and customer service to assist you with every step of the process. Whether you are upgrading an existing system or installing a new one, the TWPro MB Increaser is engineered to meet and exceed your expectations.
The end result is a flue system that is not only safe and efficient but also built to last, giving you peace of mind and a secure home environment. Buy now or call 01670 206 999.
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