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Sflue Black (2119705B) - Increaser - Ø 100-127mm

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-... More...
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Now only £78.99
Including VAT Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

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.

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.
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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).

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

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
SKU42-100-002
Diameter Increaseu00d8100mm to u00d8127mm
Outer Material304 Stainless Steel - 0.4mm thick
Inner Material316 Stainless Steel - 0.4mm thick
InsulationCompressed Rockwool (230kg/m3)
Lock Mechanism8-barbed twist lock with locking band
ApprovalsHETAS and CE
DesignationEN1856-1 T450 N1 D V2 L50040 G(50)
Clearance Requirement50mm 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 Tuesday, April 8th. 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.

Read our buyers guide for this Sflue Black (2119705B) - Increaser - Ø 100-127mm

National Flues Ltd Verdict

The Sflue Black (2119705B) Increaser is a top-notch product that enhances the efficiency of your heating appliances. Easy to install and highly reliable, this increaser is HETAS approved and CE marked, ensuring safety and quality. Plus, we offer nationwide delivery for both retail and trade customers.

The Sflue Black (2119705B) Increaser is designed to increase the diameter of your flue system from Ø 100mm to Ø 127mm, enabling compatibility with larger appliances and improving overall system efficiency.

Sflue is a highly respected brand recognized for its innovative and reliable flue system products. Known for their quality and safety, Sflue products are HETAS approved and CE marked, making them a trusted choice for both residential and commercial applications.

 

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Don’t miss out – enhance your heating efficiency with the Sflue Black Increaser today!

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