Non-concentric increaser 3 diameters - Ø 450 (3-450-204)
At a Glance
- Made from high-grade 316L stainless steel
Modular push‐fit jointing system with locking band
Designed to increase flue system diameters by three sizes
CE marked, compliant with EN 1856-1 standards
Suitable for both condensing and non-condensing applications
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, August 6th. This is based on current lead times for this product. 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 on 01670 206 999. 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.
Best 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]
- Summary
- Specs
- Install
- FAQs
The Non-concentric increaser 3 diameters - Ø 450 from our SWPro range is a versatile and essential component for any commercial flue system. Constructed from high-grade 316L stainless steel, this modular single wall flue system is robust and reliable. It features a high-pressure sealing gasket (P1/H1), making it suitable for various applications including high and low-temperature settings, and both condensing and non-condensing environments.The SWPro system is perfect for boilers, ovens, ventilation systems, and as a chimney shaft liner.
Its CE marking ensures it meets stringent European standards (EN 1856-1: T200 H1 W Vm L50040 O(50) for diameters Ø 80 up to Ø 200 and EN 1856-1: T200 H1 W Vm L50050 O(50) for diameters Ø 250 up to Ø 400). Installation is straightforward with a push-fit jointing system secured by a locking band. For optimal safety, ensure a 50mm clearance from any combustible materials.
SKU: 3-450-204
| Technical Specifications | |
|---|---|
| SKU | 3-450-204 |
| Material | 316L Stainless Steel |
| System | SWPro |
| CE Standard | EN 1856-1 |
| Applicable Diameters | u00d8 80 up to u00d8 200; u00d8 250 up to u00d8 400 |
| Clearance | 50mm from combustibles |
| Sealing | High-pressure sealing gasket (P1/H1) |
| Installation | Push-fit jointing secured by a locking band |
| Suitable Fuels | Gas, Oil |
| Warranty | 10 Years |
What our experts say!
"At National Flues, we pride ourselves on supplying the highest quality flue systems nationwide. Our Non-Concentric Increaser 3 Diameters - Ø 450 is an exceptional choice for both retail and trade customers, ensuring reliable performance and seamless integration. Rarely beaten on price, we guarantee dependable delivery across the UK."
The Non-Concentric Increaser 3 Diameters - Ø 450 is designed to expand the diameter of flue systems, particularly useful in inclined runs to prevent condensate pooling.
National Flues is your trusted supplier for high-quality fireplaces and flue systems across the UK, renowned for our competitive prices and reliable delivery.
