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KC - Single Wall to Twin Wall Increaser - Ø 125-Ø 150 (10-125-002)
National Flues delivers the high-quality KC Single Wall to Twin Wall Increaser - Ø 125-Ø 150, a vital component for efficient flue systems used in woodstoves, solid fuel appliances, and oil boilers. As a trusted UK supplier, National Flues offers HETAS approved and CE marked products, ensuring safety, durability, and superior performance. Upgrade your flue setup with this adaptable, robust, and easy-to-install solution while exploring our optional accessories for a tailored flue system.
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£18.49
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At a Glance
Universal adaptor connecting single wall flues to twin wall systems
Durable double-skin construction using 304 and 316 stainless steel (0.40mm thick)
Superior compressed rockwool insulation (128kg/m3) for heat retention and safety
Fully HETAS approved and CE marked to meet the highest safety standards
Quick and secure installation with an integrated locking band
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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 KC Single Wall to Twin Wall Increaser Ø 125-Ø 150 is a versatile adaptor designed to provide a seamless connection transition from a single wall flue to a twin wall system. Ideal for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, oil boilers, and any other solid fuel applications, this increaser is built for durability and efficiency. Constructed with 304 grade stainless steel on the outer skin and 316 grade stainless steel on the inner skin, both layers are 0.4mm thick, ensuring robust performance.
The insulation is made of compressed rockwool with a density of 128kg/m3, providing excellent heat retention and safety. It is essential to maintain a 60mm distance from combustibles. Fully HETAS approved and CE marked, this KC increaser meets rigorous safety and quality standards.
Installation is straightforward with the use of a locking band, ensuring a secure fit. Designed under EN1856-1 T600 N1 W V2 L50040 G60 and EN1856-1 T200 P1 W V2 L50040 O20 standards, it demonstrates compliance with stringent fire safety and performance criteria.
Locking band mechanism, 60mm clearance from combustibles
Designation
EN1856-1 T600 N1 W V2 L50040 G60 and EN1856-1 T200 P1 W V2 L50040 O20
Warranty
12 Years
Ensure a minimum clearance of 60mm from any combustible materials during installation. Use the provided locking band to secure the increaser firmly in place. It is important to follow the manufacturer’s installation guidelines step-by-step to guarantee both safety and optimal performance. If you require further enhancement of your flue system, consider exploring our range of optional accessories designed to complement and complete your installation.
This increaser is suitable for solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and oil boilers.
The increaser features an outer skin made of 304 grade stainless steel and an inner skin made of 316 grade stainless steel, both with a thickness of 0.4mm.
It is insulated with compressed rockwool, providing a density of 128kg/m3 for excellent heat retention.
A distance of 60mm must be maintained from any combustible materials, such as wood or plasterboard.
Yes, the KC increaser is HETAS approved and CE marked, ensuring it meets high safety and quality standards.
Installation is made easy with the use of a locking band, which ensures all parts are securely connected.
The designation numbers are EN1856-1 T600 N1 W V2 L50040 G60 and EN1856-1 T200 P1 W V2 L50040 O20, signifying compliance with high fire safety and performance standards.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th. 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 KC - Single Wall to Twin Wall Increaser - Ø 125-Ø 150 buyers guide
Introduction
The KC Single Wall to Twin Wall Increaser - Ø 125-Ø 150 by National Flues represents a sophisticated solution designed to bridge the gap between single wall and twin wall flue systems. Engineered for durability and safety, this increaser is an essential component for anyone looking to upgrade or install a new flue system for woodstoves, oil boilers, gas appliances, or solid fuel installations. In this comprehensive guide, we will explore its features, benefits, installation essentials, and considerations when choosing accessories to complete your setup.
Key Features and Benefits
Robust Construction
This product is built with a double-skin structure using high-quality stainless steel: 316L on the inside for enhanced corrosion resistance and 304 on the outside for durability. With a thickness of 0.40mm for each layer, the increaser is engineered to withstand the demands of continuous use. The robust construction reduces maintenance concerns and guarantees long-lasting performance.
Superior Insulation
The integrated compressed rockwool insulation, with a density of 128kg/m3, ensures that the flue maintains optimal thermal conditions. This insulation is integral to enhancing heat retention while protecting the surrounding structure from high temperatures. This means improved energy efficiency and safety during operation, especially in colder environments.
Safety and Regulatory Approvals
Fully HETAS approved and CE marked, the KC Increaser meets rigorous safety standards. It complies with EN1856-1 standards, which reassures installers and homeowners of its excellent performance under high temperature and fire safety conditions. This adherence guarantees that your installation is both safe and reliable.
Easy Installation Process
A standout feature is the user-friendly, locking band installation method that simplifies the setup process. This design ensures that the increaser fits securely between the flue types without the need for excessive adjustments. With a clear requirement of maintaining a 60mm distance from combustibles, the installation process is both straightforward and secure.
Installation Essentials
When planning your installation, always consider the specific clearances recommended. The manufacturer advises maintaining a 60mm distance from any combustible materials. Utilizing the locking band not only simplifies the connection but also reinforces safety by ensuring a firm assembly. Following the step-by-step installation guide helps mitigate common issues such as misalignment or insecure fittings.
Customisation and Optional Accessories
One of the benefits of selecting a product like the KC Increaser is the potential to further customise your flue system. National Flues offers a range of optional accessories designed to complement this increaser. These accessories can enhance performance and aesthetic appeal while ensuring that every component of your flue system works harmoniously. Whether you need additional insulation, custom flue connectors, or enhanced sealing solutions, our catalogue is designed to meet diverse needs. Exploring these accessories can provide a tailored solution that optimises both safety and efficiency.
Addressing Common Objections
Cost and Investment Value
A primary concern for many customers is the cost of upgrading or installing a new flue system. While the initial investment might appear higher than some alternatives, the use of high-grade materials, robust construction, and stringent safety standards ensure that lifetime maintenance costs are minimised. Investing in quality components like the KC Increaser translates into long-term savings through reliable performance and reduced downtime.
Installation Complexity
Another common concern is the complexity involved in installation. The KC Increaser has been designed with ease of installation in mind—the integrated locking band and detailed instructions help both professional installers and DIY enthusiasts achieve a secure fit without complications. If additional assistance is required, our range of accessory products further simplify steps like sealing and lining, ensuring a seamless fit. Our comprehensive installation guidance eliminates much of the usual uncertainty associated with technical installations.
Safety and Compliance
Safety is of paramount importance when it comes to flue systems. The KC Increaser’s HETAS and CE certifications provide undeniable reassurance that the product has been thoroughly evaluated against strict industry standards. This level of certification is crucial for ensuring that your home remains safe and complies with legal requirements.
Conclusion
The KC Single Wall to Twin Wall Increaser - Ø 125-Ø 150 is more than just a technical component; it is a critical element that ensures your flue system operates safely, efficiently, and in harmony with complementary products available from National Flues. Whether you operate a traditional woodstove or modern oil boiler, this increaser provides the robust connection required to maintain performance and safety.
National Flues stands behind its products, offering not only high-quality components but also expert advice and support. By selecting this increaser along with our range of optional accessories, you can build a truly customised flue system that meets all your installation needs. Invest in quality, safety, and efficiency—qualities that form the core of every National Flues product.
For further advice or to explore our extensive range of accessories, please do not hesitate to get in touch with our expert team who can guide you through every step of the process. Your safety and satisfaction are our top priorities, and we are here to ensure your installation is a success from start to finish.
Make your purchase decision with confidence, knowing you have invested in a product that delivers exceptional performance backed by rigorous quality standards. Remember, a complete flue system might also require additional accessories for optimal performance, so explore our range to find the perfect match for your installation.
Buy now or call 01670 206 999.
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