× National Flues
We Won't Be Beaten On Price.
Free Delivery on Orders Over £100
100% 5 Star Reviews on Trustpilot
Free Flue Design Service Available
Need Help? 01670 206999 (8am-5pm)

Sflue Black (2141306B) - 135° Tee - Ø 152 (42-150-034)

Discover the excellence of the Sflue Black 135° Tee by National Flues – the ultimate choice for reliable chimney flue solutions. Perfectly engineered for both solid fuel and gas/oil appliances, this chimney component is renowned for its robust stainless steel construction and superior Rockwool insulation. Experience seamless installation and exceptional compliance with EN1856-1 standards. Explore our comprehensive range of Twin Wall Insulated Chimney Flues and accessories to enhance your heating system with security and efficiency.
Hover to Zoom / Click for Gallery
£272.99
with free delivery Give us a call if you find it cheaper and we'll try to price match.

 

Payment Options

At a Glance

  • HETAS approved & CE marked
  • Dual stainless steel construction (304 outer, 316 inner) at 0.40mm thickness
  • Compressed Rockwool insulation (230kg/m³) for superior heat retention
  • 8-barbed twist-lock design with bolted locking band for secure installation
  • Unbarbed branch coupler allowing unlimited rotational adjustment
  • Suitable for solid fuel, wood, gas, oil, and low sulphur coal applications
  • Safe installation with a 50mm clearance to combustibles

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.
  • 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 Black 135° Tee - Ø 152 (2141306B) is designed for use on solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, and oil and gas boilers. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick, this product ensures exceptional durability and resilience. It features insulation made from compressed rockwool with a density of 230kg/m3, encapsulated within twist-lock couplers that secure all parts with precision using full laser welding.

Maintaining a safe distance of 50mm from combustibles is crucial. HETAS approved and CE marked, the Sflue Black 135° Tee meets EN1856-1 T450 N1 D V2 L50040 G50 standards, ensuring compliance and peace of mind. The 8-barbed twist lock design with a Locking Band ensures secure and hassle-free installation.

SKU: 42-150-034

Technical Specifications
SKU42-150-034
ModelSflue Black (2141306B) - 135u00b0 Tee - u00d8 152
Outer Material304 Stainless Steel, 0.40mm thick
Inner Material316 Stainless Steel, 0.40mm thick
InsulationCompressed Rockwool, 230kg/mu00b3
ApprovalsHETAS / CE
Installation System8-barbed twist-lock with locking band
Clearance To Combustibles50mm
Warranty15 Years manufacturing defect warranty; 2 Years paint warranty
For optimal safety and performance, begin by ensuring all chimney and flue components are clean and free from obstructions. The Sflue Black 135° Tee is designed for a twist-lock installation. First, verify that the adjacent flue components are aligned correctly to accommodate the 8-barbed design. Next, engage the twist lock couplers securely until you hear a 'click', indicating a proper fit. Remember to maintain a minimum 50mm clearance from any combustible material during installation. Always refer to the manufacturer’s guidelines and local building regulations to ensure full compliance and safety. If you are uncertain or require additional accessories such as flue collars or supplementary sealing options, our online catalog provides detailed options to perfectly match your system.

The Sflue Black 135° Tee is suitable for solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, and oil and gas boilers.

The Tee features an outer skin made from 304 grade stainless steel and an inner skin from 316 grade stainless steel, both 0.4mm thick, with compressed rockwool insulation inside.

The Tee uses an 8-barbed twist lock system and is secured with a Locking Band. Ensure a 50mm distance from combustibles during installation.

Yes, the Sflue Black 135° Tee is HETAS approved and CE marked, meeting EN1856-1 T450 N1 D V2 L50040 G50 standards.

The Tee uses compressed rockwool insulation with a density of 230kg/m3, encapsulated within the twist-lock couplers.

Yes, the branch coupler is unbarbed, allowing for unlimited rotational adjustment, and includes a bolted locking band.

The required safety distance from the flue to any combustible material is 50mm.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. 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 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 (2141306B) - 135° Tee - Ø 152 buyers guide

Order today for a secure installation and performance you can trust.

Your recently viewed products:

Multiple Payment Options- including Klarna, Clearpay, Mastercard, Visa and Paypal