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, 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 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 |
What our experts say!
"The Increaser 2 Diameters - Ø 450 is an exceptional choice for anyone looking to enhance their flue system efficiently. At National Flues, we pride ourselves on providing top-quality products at unbeatable prices, delivered nationwide to both retail and trade customers. Trade accounts are available for our professional clients, and our secure online payment system ensures a smooth purchasing experience for everyone."
The Increaser 2 Diameters - Ø 450 is designed to facilitate the transition between different flue diameters, enhancing the versatility and efficiency of your flue system.
National Flues is a trusted supplier of high-quality fireplaces and flues across the UK. Renowned for competitive pricing, reliable delivery, and exceptional customer service, we cater to both retail and trade clients with ease and efficiency. Secure online payments and dedicated trade accounts ensure a smooth purchasing experience for all our customers.
