Sflue Black (2119707B) - Increaser - Ø 152-178mm
At a Glance
- Constructed with high-quality 304 and 316L stainless steel
- 0.4mm thick for optimal performance and durability
- Designed for a range of fuels including wood, oil, gas, and low sulphur coal
- HETAS approved and CE marked, meeting EN1856-1 standards
- Integrated twist-lock couplers for secure connections
- 15-year manufacturing defect warranty with an additional 2-year paint warranty
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]
- Info
- Specs
- Install
- FAQs
The Sflue Black Increaser Ø 152-178mm (2119707B) is designed for seamless integration with your chimney flue system. Ideal for use with solid fuel and gas/oil appliances including woodstoves, gas coal effect fires, and oil and gas boilers, this increaser is both durable and efficient. Constructed with high-quality 304 grade stainless steel for the outer skin and 316 grade stainless steel for the inner skin, both 0.4mm thick, it ensures longevity and stability.
The 230kg/m3 density compressed rockwool insulation encapsulated within twist-lock couplers guarantees safety and performance. With full laser-welding technology and an 8 barbed twist lock system, all parts are secured with a locking band, maintaining a 50mm safety distance from any combustible materials. Approved by HETAS and CE-marked, this increaser adheres to EN1856-1 T450 N1 D V2 L50040 G50 standards, making it a top choice for your chimney needs.
SKU: 42-150-002
| Technical Specifications | |
|---|---|
| SKU | 42-150-002 |
| Model | 2119707B |
| Size | u00d8 152-178mm |
| Inner Material | 316L Stainless Steel (0.40mm thick) |
| Outer Material | 304 Stainless Steel (0.40mm thick) |
| Insulation | 230kg/m3 density compressed rockwool |
| Approval | HETAS / CE |
| Warranty | 15 Years manufacturing, 2 Years paint |
| Installation | Twist-lock couplers with a mandatory 50mm safe distance from combustibles |
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.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The Sflue Black Increaser (2119707B) is an exceptional product, perfect for enhancing your chimney flue system. National Flues delivers across the UK, reliably catering to both retail and trade customers with competitive prices.
The Sflue Black Increaser is designed to increase the diameter size of your appliance outlet by one size, facilitating better performance and safety in your chimney flue system.
National Flues is a leading supplier of fireplaces and flues across the UK, known for their competitive pricing, reliable delivery, and excellent service to both retail and trade customers.
