Increaser 3 diameters - Ø 350 (3-350-202)
At a Glance
- Expands flue diameter from Ø 100 up to Ø 350
Crafted from premium 316L stainless steel
Push-fit jointing system with optional locking bands
CE marked and EN1856-1 compliant
Versatile for boilers, ovens, ventilation, and chimney liners
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 Tuesday, July 22nd. 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 3 diameters - Ø 350 is a concentric increaser designed to seamlessly expand the diameter from your existing flue system up to three different levels, specifically Ø 350. This product is part of the SWPro range, a modular single wall flue system crafted from premium 316L stainless steel ensuring high durability and efficiency. Suitable for both high and low-temperature applications, as well as non-condensing and condensing environments, this increaser is versatile for uses such as boilers, ovens, ventilation systems, and chimney shaft liners.
Boasting a CE mark and stringent EN1856-1 compliance, it ensures safety and reliability. Installation is a breeze with its push-fit jointing system and optional locking bands for added security. For P1 and H1 installations, all joins must be fitted with jointing gaskets and maintain a safe distance of 50mm from any combustible materials.
SKU: 3-350-202
| Technical Specifications | |
|---|---|
| Material | 316L Stainless Steel |
| Diameter Range | u00d8 100 to u00d8 350 |
| Certifications | CE, EN1856-1 |
| Application | Boilers, Ovens, Ventilation Systems, Chimney Shaft Liners |
| System | SWPro Modular Single Wall |
| Installation | Push-fit jointing with optional locking bands; Jointing gaskets required for P1 and H1 installations |
| Warranty | 10 Years |
| Distance To Combustibles | Minimum 50mm |
What our experts say!
"The Increaser 3 Diameters - Ø 350 is a top-notch product, versatile for various high and low-temperature applications. At National Flues, we pride ourselves on being rarely beaten on price, providing reliable nationwide delivery to retail and trade customers alike."
The Increaser 3 Diameters - Ø 350 is used to expand the diameter of an existing flue system, ensuring efficient passage of flue gases in a variety of applications.
National Flues is a leading supplier of high-quality fireplaces and flues across the UK, renowned for competitive pricing and reliable nationwide delivery. We cater to both retail and trade customers, offering secure online payments and exceptional customer service.
