Welcome to National Flues Ltd! We use cookies to power essential features and personalise your experience, ensuring a smooth, secure, and ever-improving journey on our website. Your privacy is our priority—cookies help us remember your preferences and enhance your visit without compromising your data. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and thank you for choosing us!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
Screw-FIX Long Tail Increaser - Ø 125-150mm
National Flues presents the durable Screw-FIX Long Tail Increaser - Ø 125-150mm, a top-notch 316L stainless steel adaptor designed for seamless connections in chimney systems. This essential flue accessory bridges single wall flue systems with MI-FLEX flexible liners, supporting a range of fuel type... More...
National Flues presents the durable Screw-FIX Long Tail Increaser - Ø 125-150mm, a top-notch 316L stainless steel adaptor designed for seamless connections in chimney systems. This essential flue accessory bridges single wall flue systems with MI-FLEX flexible liners, supporting a range of fuel types including wood, oil, gas, and smokeless coal. Reliable, efficient, and safety-compliant, it is the ideal solution for quality chimney installations. Less...
Hover to Zoom / Click for Gallery
In Stock
At a Glance
- High-grade 316L stainless steel construction
- Compatible with wood, oil, gas, and smokeless coal appliances
- Designed for secure, gas-tight transitions between flue systems
- Compliant with Building Regulations Document J and CE/HETAS standards
- Ideal for use with MI-FLEX flexible flue liners
Now only
£41.99
Including VAT
Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.
×
Email Product
Enter your email address to send the product details:
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 Screw-FIX Long Tail Increaser - Ø 125-150mm is a high-quality, 316-grade stainless steel adaptor designed for seamless transitions between single wall connecting flue systems and MI-FLEX flexible flue liners. Ideal for use with various fuels such as wood (with less than 20% moisture), smokeless coal, gas, and oil, this increaser supports appliance temperatures up to 600°C (T600). Compliant with Building Regulations Document J, it ensures installation must be fully enclosed within a masonry chimney.
Creating a gas-tight seal is crucial; hence, it is advisable to use fire cement, ceramic rope or tape, or high-temperature sealant. This increaser also facilitates easy provisions for maintenance and chimney sweeping, which are essential to keep your system in top shape. Always opt for competent professionals for sweeping to avoid damage to the flue system.
SKU: 25-125-MRLT
Technical Specifications
SKU
25-125-MRLT
Designation
BSEN 1856-2 T600 N1 W V2 L50012 G
Material
316L Stainless Steel
Colour Finish
Stainless Steel / NATURAL
System
MI-FLEX Accessories MF20
Fuels
Wood, Oil, Gas, Smokeless coal
Temperature Rating
600u00b0C
Compliance
CE / HETAS, Building Regulations Document J
Ensure the flexible flue liner is fully enclosed within a masonry chimney in compliance with Building Regulations Document J. Use fire cement, ceramic rope or tape, or a high-temperature sealant to create a gas-tight seal. Always select a competent professional for installation and annual chimney sweeping to avoid any issues. Avoid using chemical cleaners or mild steel tools on stainless steel components to ensure longevity.
The Screw-FIX Long Tail Increaser is designed to connect single wall flue systems to flexible flue liners, ensuring a smooth transition and a secure, gas-tight seal.
Yes, it is suitable for use with wood (with less than 20% moisture), smokeless coal, gas, and oil, supporting appliance temperatures up to 600°C.
To ensure a gas-tight seal, it is recommended to use fire cement, ceramic rope or tape, or high-temperature sealant.
Yes, per Building Regulations Document J, the flexible flue liner must be installed fully enclosed within a masonry chimney. Any form of timber or plasterboard boxing is not acceptable.
It’s recommended to have the chimney system cleaned and inspected at least once a year. However, for solid fuel appliances, sweeping should occur at least twice a year – at the end of the heating season and before the next heating season starts.
No, chemical cleaners and mild steel tools should not be used for sweeping stainless steel chimneys. Always opt for professional cleaning.
While it's possible for those experienced with chimney installations, it's highly recommended to hire a competent professional to ensure all components are correctly installed and comply with building regulations.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Thursday, April 3rd.
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. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
Read our buyers guide for this Screw-FIX Long Tail Increaser - Ø 125-150mm
Introduction
The Screw-FIX Long Tail Increaser - Ø 125-150mm is a specialist adaptor designed to create a secure and efficient connection between single wall flue systems and MI-FLEX flexible flue liners. Manufactured from high-grade 316L stainless steel, it delivers high performance under extreme conditions, making it suitable for use with a variety of fuel types, including wood (with a moisture content of less than 20%), oil, gas, and smokeless coal. In this detailed buyers guide, we will explore the unique features, benefits, installation nuances, and reasons why this product stands out as an excellent choice for your chimney installation needs.
Product Overview
The Screw-FIX Long Tail Increaser combines durability, versatility, and safety. Its robust 316L stainless steel construction ensures that it withstands high temperatures (up to 600°C), making it ideal for demanding heating applications. With compliance to Building Regulations Document J and industry standards such as CE and HETAS, this product is engineered to deliver a secure, gas-tight connection, thereby enhancing both system efficiency and user safety.
Key Features and Advantages
- Durable Construction: Made from premium 316L stainless steel, the increaser is built to withstand the rigours of high-temperature operation and adverse weather conditions, ensuring longevity and reliable performance.
- Versatility: Suitable for a range of fuels, it allows for flexibility in your heating system setup, accommodating different energy sources without compromising safety.
- Secure Installation: The design ensures a gas-tight seal when used in conjunction with fire cement, ceramic rope or tape, and high-temperature sealants, which is critical for ensuring safe operation.
- Compliance and Safety: Meeting rigorous industry standards, the product provides assurance to consumers and professionals alike, mitigating risks during installation.
- Maintenance Friendly: Its design allows for easy chimney sweeping and inspection, which helps in maintaining optimal performance and prolonging the lifespan of your chimney system.
Detailed Installation Guidelines
Pre-Installation Considerations
Before beginning the installation process, ensure that the chimney system is fully enclosed within a masonry structure, as stipulated by Building Regulations Document J. It is essential to verify that all components, including both the single wall flue and the flexible liner, are in excellent condition.
Installation Process
1. Prepare the Chimney: Inspect the chimney to ensure that it is free from any blockages or structural issues. Confirm that the area where the increaser will be installed is clean and dry.
2. Apply Sealant: To ensure a gas-tight seal, apply either fire cement, ceramic rope or tape, or a high-temperature sealant around the connection area. This step is critical to prevent any leakage and to enhance safety.
3. Connect the Adaptor: Carefully fit the Screw-FIX Long Tail Increaser between the single wall flue system and the MI-FLEX flexible flue liner. Ensure that the connection is secure and aligned properly.
4. Professional Assistance: Given the complexity of chimney installations and the importance of adhering to safety regulations, it is highly recommended to have the installation performed or inspected by a professional.
Post-Installation Maintenance
Regular maintenance and inspection are key to the longevity of your chimney system. Annual cleaning and scheduled inspections, particularly for solid fuel appliances, should be carried out to ensure optimal performance. Remember, professional cleaning is advised to avoid any damage to the stainless steel components of the system.
Addressing Common Concerns
Safety and Compliance
The Screw-FIX Long Tail Increaser is manufactured in accordance with stringent safety standards. Its compliance with Building Regulations Document J, CE, and HETAS ensures that it meets all necessary safety guidelines. Using approved sealants further reinforces its gas-tight performance, ensuring that the installation is not only efficient but also safe.
Ease of Installation
Many may wonder if they can install the increaser themselves. While seasoned professionals might manage a DIY installation, it is strongly recommended to hire certified installers. Proper installation is key to preventing leaks and ensuring that the system performs as intended.
Longevity and Durability
Constructed from 316L stainless steel, this product is designed for longevity. Its corrosion resistance means that even in harsh weather conditions, it will remain reliable over time. This long-term durability makes it a cost-effective choice, reducing the need for frequent replacements or repairs.
Why Choose National Flues?
National Flues is synonymous with quality, innovation, and exceptional customer service. With a focus on both retail and trade customers, the company provides secure online transactions and nationwide delivery. Their commitment to quality is evident in every product they offer, ensuring that you receive not only a product but also peace of mind knowing that it meets strict industry standards.
Conclusion
In summary, the Screw-FIX Long Tail Increaser - Ø 125-150mm is an indispensable accessory for anyone looking to achieve a secure and compliant chimney system installation. With its robust 316L stainless steel construction, versatile fuel compatibility, and ease of maintenance, this adaptor is designed to serve you effectively for years to come. Its compliance with industry standards and the ease of achieving a gas-tight seal further underline its suitability for a wide range of applications. Whether you are upgrading an existing chimney setup or installing a new system, the Screw-FIX Long Tail Increaser offers a blend of performance, safety, and durability that is hard to match.
For installers and homeowners alike, understanding the intricacies of chimney installation is crucial. Adhering to the recommended installation guidelines not only ensures safety but also optimises the overall efficiency of your heating system. With National Flues at the forefront, you can rest assured that you are investing in a product that has been designed to meet the highest standards of quality and performance.
This comprehensive guide should provide you with all the information needed to make an informed decision. From its robust construction and versatile fuel compatibility to its straightforward installation process and minimal maintenance requirements, the Screw-FIX Long Tail Increaser stands out as an essential component for any chimney system. Its reliability and ease of integration with existing MI-FLEX systems make it a preferred choice for both installation professionals and discerning homeowners.
Buy now or call 01670 206 999.
National Flues Ltd Verdict
The Screw-FIX Long Tail Increaser is a top-notch solution for effortlessly connecting single wall flue systems to flexible flue liners. Designed with durability and reliability in mind, this increaser is a favourite among our trade and retail customers. With Nationwide delivery and rarely beaten on price, National Flues remains the preferred choice for fireplace and flue solutions.
The Screw-FIX Long Tail Increaser is designed to facilitate the connection between single wall flue systems and flexible flue liners, ensuring a secure and gas-tight transition within masonry chimneys.
National Flues is a leading supplier of fireplaces and flue solutions across the UK, known for high-quality products, unbeatable prices, and reliable nationwide delivery. Catering to both retail and trade customers, National Flues ensures secure online payments and exceptional customer service.
Ensure a flawless flue installation – order your Screw-FIX Long Tail Increaser now!