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Sflue (2119705) - Increaser SW to TLPro 100mm-125mm Ø (22-100-002)

National Flues presents the Sflue Increaser SW to TLPro, a premium solution engineered to enhance your heating system’s performance. Designed as a vital accessory, this flue diameter increaser upgrades a 100mm flue to a 125mm one, ensuring optimum combustion and efficiency. Built with high-quality 304 and 316 grade stainless steel and fully laser welded for durability, it perfectly complements wood stoves, gas, and oil appliances. Explore our range of related chimney accessories to complete your Read more...
The price you pay today £88.99
Give us a call if you find it cheaper and we'll normally price match.

 

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At a Glance

    Increases flue diameter from 100mm to 125mm for enhanced performance
    Constructed from robust 304 and 316 grade stainless steel (0.40mm thick)
    Fully laser welded for superior durability and reliability
    HETAS Approved and CE marked, ensuring safety and compliance
    Incorporates an 8-barbed twist lock system with a secure Locking Band
    Designed to maintain a safe 50mm distance from combustibles
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

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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.

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.

Have Questions?
Phone: 01670 206999
Email: [email protected]

The Sflue Increaser SW to TLPro (2119705) is engineered to enhance the efficiency of your heating system by increasing the flue diameter from 100mm to 125mm. This high-quality component is suitable for use with solid fuel, gas, and oil appliances such as woodstoves, gas coal effect fires, and boilers. Constructed with durability in mind, it features an outer skin made from 304 grade stainless steel and an inner skin made from 316 grade stainless steel, both with a thickness of 0.4mm.

The insulation consists of compressed rockwool with a density of 230kg/m³, encapsulated within the twist-lock couplers to ensure maximum performance and safety. Fully laser welded for robustness, the Sflue is HETAS Approved and CE marked, meeting the standards EN1856-1 T450 N1 D V2 L50040 G50. For installation, it employs an 8-barbed twist lock system secured with a Locking Band, maintaining a safe 50mm distance to combustible materials.

SKU: 22-100-002

Technical Specifications
SKU22-100-002
Diameter Conversion100mm to 125mm
Outer Material304 Stainless Steel, 0.40mm
Inner Material316 Stainless Steel, 0.40mm
InsulationCompressed Rockwool, 230kg/mu00b3
CertificationHETAS Approved, CE Marked
Installation Method8-barbed Twist Lock System with Locking Band
Distance To Combustibles50mm
Warranty15 Years
The Sflue Increaser is installed using an 8-barbed twist lock system; ensure that the Locking Band is securely fastened. Always maintain a clear distance of 50mm from any combustible materials during installation. Follow all provided guidelines and safety instructions carefully. Before commencing work, read the detailed installation manual and, if in doubt, consult a certified installer to ensure compliance with local regulations. After installation, verify all connections for stability and inspect the area around the flue to confirm that safety distances are maintained.

The Sflue Increaser SW to TLPro is compatible with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and boilers.

The outer skin is made from 304 grade stainless steel and the inner skin is made from 316 grade stainless steel, each with a thickness of 0.4mm. The insulation is compressed rockwool with a density of 230kg/m³.

The Sflue Increaser requires a distance of 50mm from any combustible materials.

Yes, the Sflue Increaser is HETAS Approved and CE marked, meeting the EN1856-1 T450 N1 D V2 L50040 G50 standards.

It uses an 8-barbed twist lock system and is secured with a Locking Band. Maintain a 50mm distance to combustibles during installation.

The Sflue Increaser is used to increase the flue diameter from 100mm to 125mm, enhancing the efficiency and performance of your heating appliance.

The insulation material is compressed rockwool with a density of 230kg/m³.

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