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Sflue Black (2114305B) - 90° Tee - Ø 127 (42-125-035)

National Flues presents the Sflue Black 90° Tee Ø 127mm, a high-quality chimney flue component designed for enduring performance. Ideal for wood, oil, gas, and low sulphur coal appliances, this accessory meets stringent HETAS and CE standards. Enhance your flue system with a versatile, durable, and certified solution that ensures safety and efficiency.
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The price you pay today £328.99
including free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

    Genuine HETAS & CE approved
    Made from premium 304 (outer) and 316 (inner) stainless steel, each 0.40mm thick
    Maintains a safe 50mm clearance from combustibles
    Versatile design suitable for wood, oil, gas, and low sulphur coal appliances
    Secure 8-barbed twist lock mechanism with a locking band
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 3rd. 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 of terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. 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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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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

The Sflue Black 90° Tee Ø 127mm is a critical part for your chimney flue system, suitable for both solid fuel and gas/oil appliances, including wood stoves, gas coal effect fires, and more. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick, this tee ensures durability and performance. The insulation comprises compressed rockwool with a density of 230kg/m3, encapsulated within twist-lock couplers for added safety and efficiency.

Fully laser welded, the Sflue system maintains a safe distance of 50mm from combustibles, ensuring a secure setup. It holds HETAS approval and CE marking, conforming to EN1856-1 T450 N1 D V2 L50040 G50 standards. The 8-barbed twist lock mechanism, secured with a locking band, guarantees a tight and secure fit.

SKU: 42-125-035

Technical Specifications
SKU42-125-035
Item90u00b0 Tee - u00d8 127mm
EN ApprovalEN1856-1 T450 N1 D V2 L50040 G(50)
HETAS ApprovalYes
CE MarkingYes
MaterialsOuter: 304 Stainless Steel (0.40mm); Inner: 316 Stainless Steel (0.40mm)
InsulationCompressed Rockwool, 230kg/m3
Installation8-barbed twist lock mechanism with locking band; maintain 50mm clearance from combustibles
Warranties15 Years manufacturing defect warranty, 2 Years paint warranty
Before installation, ensure that the area maintains a minimum clearance of 50mm from all combustible materials. Begin by aligning the Tee with your existing flue components. Engage the 8-barbed twist lock mechanism carefully and secure using the provided locking band. Follow the manufacturer’s guidelines precisely and consult a professional if you are unsure about any steps in the process.

The Sflue Black 90° Tee is suitable for solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, oil and gas boilers, and other solid fuel appliances.

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

The Sflue 90° Tee is installed using an 8-barbed twist lock mechanism secured with a locking band. Ensure a distance of 50mm from any combustible materials is maintained during installation.

Yes, the Sflue Black 90° Tee is HETAS approved and CE marked, conforming to the EN1856-1 T450 N1 D V2 L50040 G50 standard.

A distance of 50mm from any combustible materials, such as wood or plasterboard, must be maintained around the Sflue 90° Tee.

The insulation, made from compressed rockwool with a density of 230kg/m3, helps to maintain efficient heat retention and safety by keeping the outer skin cool.

Yes, the Sflue 90° Tee can be used both at the base of a vertical chimney from a horizontal stove outlet and as an inspection opening.

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