Sflue Black (2119706B) - Increaser - Ø 127-152mm (42-125-002)
At a Glance
- Increases flue diameter from Ø127mm to Ø152mm
Constructed with robust 316L (inner) and 304 (outer) stainless steel – 0.40mm thick
Compressed rockwool insulation for enhanced thermal efficiency
HETAS approved and CE marked for trusted safety standards
Easy installation with 8-barbed twist-lock system and locking band
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.
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.
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 (2119706B) Increaser - Ø 127-152mm is designed for seamless integration into your flue system, equipped to handle a variety of heating appliances including wood stoves, gas coal effect fires, and oil and gas boilers. Constructed with robust materials, the outer skin is made from 304 grade stainless steel while the inner lining consists of 316 grade stainless steel. Both skins are 0.4mm thick.
The increaser includes compressed rockwool insulation with a density of 230kg/m3, encapsulated within twist-lock couplers for enhanced efficiency. Fully laser welded, it ensures utmost durability and performance. This product maintains a safe distance of 50mm between the flue and any combustible materials.
HETAS approved and CE marked, it meets high industry standards (EN1856-1 T450 N1 D V2 L50040 G50). Installation is straightforward with its 8-barbed twist lock system and locking band, ensuring secure and reliable connections.
SKU: 42-125-002
| Technical Specifications | |
|---|---|
| SKU | 42-125-002 |
| Product Name | Sflue Black Increaser - u00d8 127-152mm |
| Dimensions | u00d8127mm to u00d8152mm |
| Inner Material | 316L Stainless Steel (0.40mm thick) |
| Outer Material | 304 Stainless Steel (0.40mm thick) |
| Insulation | Compressed Rockwool, 230kg/m3 |
| Approval | HETAS / CE |
| Minimum Clearance | 50mm from combustibles |
| Warranty | 15 Years manufacturing defect, 2 Years paint warranty |
