Sflue Black (2119705B) - Increaser - Ø 100-127mm (42-100-002)
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
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 (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 | |
|---|---|
| SKU | 42-100-002 |
| Diameter Increase | u00d8100mm to u00d8127mm |
| Outer Material | 304 Stainless Steel - 0.4mm thick |
| Inner Material | 316 Stainless Steel - 0.4mm thick |
| Insulation | Compressed Rockwool (230kg/m3) |
| Lock Mechanism | 8-barbed twist lock with locking band |
| Approvals | HETAS and CE |
| Designation | EN1856-1 T450 N1 D V2 L50040 G(50) |
| Clearance Requirement | 50mm from combustibles |
