Increaser 2 diameters - Ø 450 (3-450-102)
At a Glance
- Modular design for smooth diameter transitions
Crafted from durable 316L stainless steel
CE marked and compliant with EN 1856-1 standards
High-pressure sealing gasket (P1/H1) for leak-free installation
Suitable for both condensing and non-condensing applications
Versatile compatibility with gas and oil fuel systems
Maintains essential 50mm clearance from combustible materials
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, June 18th. 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 Increaser 2 diameters - Ø 450 from our SWPro line is a modular single-wall flue system, expertly crafted to ensure seamless transitions between different diameters. Constructed from high-quality 316L grade stainless steel, it features a high-pressure sealing gasket (P1/H1) making it suitable for high and low temperature applications, as well as non-condensing and condensing flue gases in both positive and negative pressure environments. It is an ideal choice for various configurations including boilers, ovens, ventilation systems, and as a chimney shaft liner.
SWPro is a trusted and CE-marked system conforming to EN 1856-1 standards for multiple diameter ranges. Installation is straightforward due to its push-fit jointing system that locks securely with a Locking Band. Each joint should be fitted with a gasket to ensure a tight seal, and it is crucial to maintain a 50mm gap from the outside of the flue to any combustible material.
SKU: 3-450-102
| Technical Specifications | |
|---|---|
| SKU | 3-450-102 |
| Product Name | Increaser 2 Diameters - u00d8 450 |
| Material | 316L Stainless Steel |
| Diameter Range | u00d880 up to u00d8200 and u00d8250 up to u00d8400 |
| System | SWPro |
| Gasket Type | High-pressure (P1/H1) |
| Fuel Compatibility | Gas, Oil |
| Approvals | CE, EN 1856-1 |
| Clearance | 50mm from combustible materials |
| Warranty | 10 Years |
