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Sflue Black (2119705B) - Increaser - Ø 100-127mm (42-100-002)
Enhance your chimney system with the Sflue Black Increaser, a premium upgrade designed for solid fuel, gas, and oil appliances. Manufactured by Sflue, a trusted name in flue system technology in the UK, this increaser is an ideal solution for homeowners seeking reliability and efficiency. With high-grade stainless steel and advanced rockwool insulation, it optimises performance while ensuring safety. Compatible with various heating systems including woodstoves and boilers, this product offers a robust, easy-to-install solution for modern heating needs.
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In Stock
£78.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Upgrades flue diameter from Ø100mm to Ø127mm
Constructed with durable 304 and 316 grade stainless steel (0.4mm thickness)
Features compressed rockwool insulation (230kg/m3) for enhanced safety
Equipped with an 8-barbed twist lock mechanism and locking band
HETAS approved and CE marked for compliant installation
Maintains a safe 50mm clearance from combustible materials
Ideal for solid fuel, gas, and oil appliance applications
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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:
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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 Sflue Black (2119705B) Increaser - Ø 100-127mm is an essential component for anyone looking to increase the diameter of their flue system. Perfect for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, and boilers, this increaser ensures optimal performance and safety. Constructed with a 0.4mm thick outer skin made from 304 grade stainless steel and an inner skin made from 316 grade stainless steel, this increaser is designed for long-lasting durability.
The insulation is composed of compressed rockwool with a density of 230kg/m3, which is encapsulated within the twist-lock couplers. Featuring an 8-barbed twist lock mechanism, the parts are securely connected using a locking band, and you must maintain a safe distance of 50mm from the outside of the flue to any combustible materials like wood or plasterboard. Approved by HETAS and CE marked, with a designation number of EN1856-1 T450 N1 D V2 L50040 G50, this increaser stands up to rigorous quality standards.
SKU: 42-100-002
Technical Specifications
SKU
42-100-002
Diameter Increase
u00d8100mm to u00d8127mm
Outer Material
304 Stainless Steel - 0.4mm thick
Inner Material
316 Stainless Steel - 0.4mm thick
Insulation
Compressed Rockwool (230kg/m3)
Lock Mechanism
8-barbed twist lock with locking band
Approvals
HETAS and CE
Designation
EN1856-1 T450 N1 D V2 L50040 G(50)
Clearance Requirement
50mm from combustibles
Step-by-step installation: Ensure the flue system is properly measured to maintain a 50mm clearance from any combustible materials. Connect the increaser using the secure 8-barbed twist lock couplers, ensuring that the locking band is fastened tightly to prevent any disengagement. Follow the manufacturer's guidelines closely; if unsure at any stage, consult a qualified professional installer. Warning: Compromising the 50mm clearance can lead to safety hazards and should be avoided at all costs.
The Sflue Black Increaser can be used with woodstoves, gas coal effect fires, oil and gas boilers, and any solid fuel appliances.
The Sflue Black Increaser's outer skin is made from 304 grade stainless steel, and the inner skin is made from 316 grade stainless steel. Both skins are 0.4mm thick.
The insulation in the Sflue Black Increaser is composed of compressed rockwool, which has a density of 230kg/m3.
Yes, the Sflue Black Increaser is HETAS approved and CE marked, with a designation number EN1856-1 T450 N1 D V2 L50040 G50.
You must maintain a distance of 50mm from the outside of the flue to any combustible materials, such as wood or plasterboard.
The Sflue Black Increaser features an 8-barbed twist lock mechanism. The parts are securely connected using a locking band.
The twist-lock couplers ensure a secure and tight fit of the flue components, encapsulating the insulation for added safety and efficiency.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Thursday, May 1st. 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.
Read our review in our Sflue Black (2119705B) - Increaser - Ø 100-127mm buyers guide
A Comprehensive Guide to the Sflue Black Increaser
When investing in the efficiency and safety of your home heating system, selecting the right components is paramount. The Sflue Black Increaser offers a reliable solution to upgrade your flue system from Ø100mm to Ø127mm, ensuring that your heating appliances operate at peak performance. In this guide, we explore every aspect of the increaser, addressing common questions and highlighting key benefits.
Understanding the Product
The Sflue Black Increaser is designed with robustness in mind. It features a dual-layered construction with an outer skin made from 304 grade stainless steel and an inner skin crafted from 316 grade stainless steel, each with a thickness of 0.4mm. This construction not only provides durability but also ensures that the product can endure harsh weather conditions and high temperatures. The compressed rockwool insulation, rated at 230kg/m³, further enhances safety by reducing the risk of overheating and increasing thermal efficiency.
Key Attributes
- Durable Materials: Both the inner and outer layers are built to last, offering a long service life that minimizes maintenance and replacement costs.
- Enhanced Compatibility: By increasing the flue diameter, this increaser allows for a seamless fit with larger and more modern appliances, making it a versatile addition to any system.
- Secure Installation: The 8-barbed twist lock system, complemented by a locking band, ensures a secure connection that is essential for maintaining performance and safety over time.
- Certified Safety: With HETAS approval and CE marking, this product adheres to strict European safety standards, giving you peace of mind.
Installation and Safety Guidelines
Installing the Sflue Black Increaser requires careful attention to detail. First and foremost, maintaining a 50mm clearance from combustible materials such as wood or plasterboard is crucial. This clearance is not just a recommendation; it is a safety requirement designed to prevent potential fires and other hazards.
To install the increaser, begin by verifying that your existing flue system is free of obstructions and is compatible with the new component. Carefully align the increaser with your existing setup and secure it using the twist lock couplers. The locking band must be correctly tightened to ensure that all parts fit together seamlessly. If you are unsure about any step of the installation process, it is advisable to consult with a qualified professional who can provide expert guidance.
Compatibility and Energy Efficiency
This product is highly versatile and compatible with a range of appliances including woodstoves, gas coal effect fires, and boilers. The ability to increase the flue diameter from Ø100mm to Ø127mm means that you can upgrade your heating system without the need for a complete overhaul. Energy efficiency is a key concern with modern heating systems, and the Sflue Black Increaser plays an important role in optimising energy use by ensuring that your appliance operates with maximum efficiency. By improving the flow and drafting within the flue system, this increaser helps in reducing energy waste, which translates into better performance and lower energy bills.
Optional Accessories and System Customisation
For those looking to further enhance their flue systems, exploring additional accessories is highly recommended. Optional accessories such as adapter kits, enhanced insulation covers, and specialized flue connectors can further optimise the performance and safety of your installation. These accessories allow you to customise the system to your exact requirements, ensuring that every component works in harmony. Investing in these optional components can result in a more efficient system overall, allowing you to get the best return on your investment. With such a range of options available, you can tailor your flue system setup to meet both new build and retrofit project demands.
Overcoming Common Concerns
Many customers initially worry about the seemingly complicated installation process and the potential for safety hazards. However, the Sflue Black Increaser has been engineered with user-friendliness in mind. The design incorporates intuitive, easy-to-follow assembly instructions, and the certification from recognised bodies such as HETAS and CE ensures that all safety standards are met. Moreover, the benefits of enhanced efficiency and compatibility far outweigh any initial learning curve. For those new to flue system upgrades, the assurance of expert support and detailed guidance provided by our installation details and optional accessory advice makes the process straightforward and stress-free.
Final Recommendations
In conclusion, the Sflue Black Increaser is an excellent investment for anyone looking to upgrade their heating system. Its robust construction, combined with high-quality materials and strict adherence to safety standards, makes it an indispensable component for both residential and commercial applications. Whether you are upgrading an existing system or installing a new one, this increaser provides the flexibility and performance needed to ensure a warm and secure home environment.
Taking proactive steps to explore optional accessories can further enhance the value of your installation, ensuring that every element of your flue system is optimised for efficiency and safety. As you plan your upgrade, keep in mind that every detail matters, from the secure twist-lock fittings to the critical 50mm clearance from combustibles.
Embrace the future of home heating with a reliable, efficient, and safe flue system upgrade. The Sflue Black Increaser not only meets modern standards but also delivers a performance that you can trust for years to come.
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