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Discover the National Flues TWPro MB Twin Wall to Twin Wall Increaser – a premium adaption solution designed for robust, efficient, and reliable flue systems. Perfect for a range of heating appliances including wood stoves, oil boilers, and gas devices, this high-performance adapter blends quality engineering with practical versatility. Enhance your home’s comfort and ensure optimal combustion efficiency with this carefully crafted, durable, and easy-to-install product from National Flues, a name trusted across the UK.
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£97.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Premium 316L and 304 stainless steel construction with high-temperature black finish
Fully welded design ensuring robust durability
Compressed rockwool insulation (200kg/m³) for optimal heat retention
Precisely designed to connect twin wall systems in 25mm increments
Suitable for wood, oil, gas, and low sulphur coal appliances
HETAS approved and CE marked for safety and compliance
Easy installation with secure locking bands and 50mm clearance requirement
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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 Twin Wall to Twin Wall Increaser (Ø 175-Ø 200) is a top-tier solution for those looking to enhance their chimney system. This innovative product is ideal for a range of appliances including wood stoves, gas coal effect fires, oil boilers, and any solid fuel devices. Constructed meticulously with an outer skin of 304 stainless steel, coated in a high-temperature black finish, and an inner skin of 316 grade stainless steel, this increaser is built to withstand rigorous conditions.
With a compressed rockwool insulation boasting a density of 200kg/m3, it ensures excellent heat retention. All parts are fully welded, guaranteeing durability and performance. The TWPro series meets HETAS and CE certifications, ensuring safety and compliance.
Installation is straightforward with secure locking bands included, and the necessary 50mm clearance from combustibles is easily achievable. Enhance your flue system today with the TWPro MB Increaser, a trusted component from National Flues.
SKU: 37-175-004
Technical Specifications
Model
TWPro MB
Application
Twin Wall to Twin Wall Increaser
Size
u00d8 175-u00d8 200
Inner Material
316L Stainless Steel (0.40mm thick)
Outer Material
304 Stainless Steel (0.40mm thick) with high-temperature black coating
Insulation
Compressed Rockwool (200kg/mu00b3)
Certifications
HETAS, CE
Clearance Requirement
50mm from combustibles
Suitable Fuels
Wood, Oil, Gas, Low Sulphur Coal
Installation is straightforward: Ensure you have a minimum 50mm clearance from any combustible material. The product comes with secure locking bands designed for a tight, safe fit. Follow the manufacturer’s guidelines exactly and refer to local regulations to ensure compliance. If you are uncomfortable with setting up the system yourself, professional installers are available to assist with a hassle-free assembly.
The TWPro MB Increaser is suitable for solid fuel and gas/oil appliances like wood stoves, gas coal effect fires, oil boilers, and other solid fuel appliances.
The outer skin is crafted from 304 stainless steel with a high-temperature black finish, while the inner skin is made from 316 grade stainless steel. It also includes compressed rockwool insulation with a density of 200kg/m3.
Yes, installation is straightforward with the provided locking bands. Ensure a 50mm clearance from any combustible materials.
The TWPro MB Increaser is HETAS Approved and CE marked, adhering to strict safety and performance standards, including EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.
This clearance is crucial to prevent any fire hazards by ensuring that the heat from the flue does not ignite nearby combustible materials.
Yes, the TWPro MB series includes increasers in various sizes to cater to different needs, all increasing in precise 25mm increments.
The high-temperature black finish not only provides an aesthetic appeal but also adds an extra layer of protection, ensuring the increaser withstands high operational temperatures and harsh conditions.
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 - Twin Wall to Twin Wall Increaser - Ø 175-Ø 200 buyers guide
Introduction
The TWPro MB Twin Wall to Twin Wall Increaser is a vital component designed to elevate the performance and safety of your heating system. Manufactured to the highest standards, this increaser is ideally suited for connecting and extending twin wall flue systems. Whether you are installing a new system or upgrading an existing one, this product offers a reliable and durable solution reinforced by National Flues’ commitment to quality.
Key Features and Benefits
The product is constructed from premium stainless steel, providing both a robust inner layer of 316L and an outer layer of 304 stainless steel that is high-temperature black coated. This combination not only ensures longevity but also adds a modern aesthetic to your installation. The inclusion of compressed rockwool insulation (200kg/m³) significantly improves heat retention, making your heating system more efficient and safe for prolonged use.
- Premium Materials: Both the inner and outer materials are designed to withstand high temperatures and harsh environmental conditions, minimising the risk of corrosion and wear.
- Fully Welded Construction: The secure welds guarantee a leak-proof installation, reducing maintenance costs and the chance of potential hazards.
- Versatile Compatibility: Suitable for a variety of fuels including wood, oil, gas, and low sulphur coal, it offers unparalleled adaptability
- Safety Assured: With HETAS approval and CE marking, rest assured that your system meets the rigorous UK safety standards.
Performance and Efficiency
The precise 25mm incremental design of the TWPro MB ensures that your flue system is custom-fit to your specific requirements. This precision not only makes installation simpler but also optimises the performance of your heating appliance. By investing in a product that offers enhanced thermal retention and robust build quality, you are making a proactive choice for energy efficiency and operational reliability.
Installation Guidance
Installing the TWPro MB is designed to be straightforward. The product comes with clear guidance and secure locking bands to ensure the increaser fits tightly into your flue system. It is crucial to observe the minimum clearance requirement of 50mm from any combustibles. Following the step-by-step instructions provided will lead to a secure and compliant setup. If in doubt at any step, do not hesitate to seek professional advice or assistance.
Addressing Common Objections
Worried about installation complexity? The TWPro MB has been engineered with ease of use in mind – its secure locking bands simplify the setup process even for first-time installers. Detailed instructions ensure an uncomplicated mounting process, which minimizes downtime and inconvenience.
Concerns about durability? With its fully welded stainless steel construction, this increaser promises long-term reliability and resistance to adverse weather conditions. The high-temperature black finish is not merely aesthetic; it plays a pivotal role in protecting the product from the rigours of daily use.
Is versatility an issue? Not at all. Designed to accommodate a range of fuels from wood and oil to gas and low sulphur coal, the TWPro MB ensures that regardless of your heating system's fuel, you can achieve a secure and efficient setup. This versatility makes it an excellent choice for homes with multiple heating appliances or for professionals looking for a solution that works across various installations.
Safety should always be a primary concern. The TWPro MB addresses this by complying with both HETAS and CE standards, ensuring that every component of your system is safe, compliant, and performing at its best. The 50mm clearance requirement is a mandatory safety feature designed to prevent fire hazards, giving you peace of mind that your installation is secure.
Why Choose National Flues?
At National Flues, we understand that quality and reliability are non-negotiable. Our extensive range of products is meticulously designed and rigorously tested to meet the highest standards. The TWPro MB Twin Wall to Twin Wall Increaser stands as a testament to our commitment to safety, efficiency, and performance. With a legacy of serving both retail and trade customers across the UK, you can trust that you are getting a product that is not only expertly engineered but also backed by unparalleled customer service.
Making the Decision
If you are in the process of upgrading your heating system or require a reliable connection between twin wall flues, the TWPro MB is the ideal solution. It is engineered for those who demand excellence in both performance and safety. The ease of installation, combined with top-tier materials and exceptional thermal performance, means that it’s a product you can depend on for years to come.
Whether upgrading an old system, or installing a new one, consider the long-term benefits of investing in a solution that not only meets but exceeds industry standards. With National Flues, you are choosing a product that offers enhanced efficiency, durability, and safety – a combination that brings both comfort and reliability to your home.
Add to cart now or call 01670 206 999.
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