Increaser - Ø 350 (3-350-002)
At a Glance
- Constructed from premium 316L Stainless Steel
CE marked and EN 1856-1 compliant for safety and quality
Designed for both high and low-temperature applications
Easy push-fit installation with a secure locking band
Seamlessly up-sizes flue diameters for versatile installations
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 - Ø 350 is an integral part of the SWPro modular single wall flue system, designed with the sophisticated needs of commercial and residential settings in mind. Made from 316 grade stainless steel, it boasts a high-pressure sealing gasket (P1/H1), making it suitable for both high and low-temperature applications. The SWPro flue system accommodates positive and negative pressure scenarios, excelling in non-condensing and condensing environments.
It meets rigorous quality standards, marked by its CE certification and compliance with EN 1856-1 regulations. The Increaser is perfect for various applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner. Installation is simplified through its push-fit jointing system, further secured by a locking band.
Ensure a 50mm clearance from any combustible materials to maintain safety.
SKU: 3-350-002
| Technical Specifications | |
|---|---|
| Material | 316L Stainless Steel |
| Certification | CE |
| Regulation | EN 1856-1 |
| Sealing | High-pressure sealing gasket (P1/H1) |
| Clearance | 50mm from combustibles |
| Application | Boilers, ovens, ventilation systems, chimney shaft liner |
| System Compatibility | SWPro modular flue system |
| Installation | Push-fit jointing with locking band |
| Warranty | 10 Years |
What our experts say!
"The Increaser - Ø 350 is crafted from high-grade stainless steel and is incredibly versatile. It's perfect for a range of applications including boilers, ovens, ventilation systems, and chimney shafts. We're thrilled to offer this high-quality product at competitive prices, with reliable nationwide delivery for both retail and trade customers."
The Increaser - Ø 350 is used to increase the diameter of your flue system, facilitating an efficient transition between different sizes to meet the demands of your boiler, oven, ventilation, or chimney shaft applications.
National Flues is a leading supplier of fireplaces and flues across the UK, offering competitively priced products and reliable delivery. Catering to both retail and trade customers, we ensure secure online payments for all transactions.
