Non-concentric increaser 3 diameters - Ø 250 (3-250-204)
At a Glance
- High-grade 316L stainless steel construction for exceptional durability
Seamless transition between three diameters enhancing flue system versatility
Fully compliant with EN 1856-1 standards and CE marked for safety
Suitable for both condensing and non-condensing applications with secure push-fit joints
Includes high-pressure sealing gaskets to prevent condensate pooling
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 8th. 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 250 is part of the SWPro range, a modular single wall flue system constructed from 316 grade stainless steel. This increaser allows you to smoothly transition between three different diameters, providing flexibility in your flue system setup. Perfect for a variety of applications such as boilers, ovens, ventilation systems, and chimney liners, this high-quality flue component meets the stringent T200 H1 W Vm L50050 O(50) standards.
It includes a high-pressure sealing gasket, making it suitable for both positive and negative pressure applications, as well as condensing and non-condensing setups. The push-fit jointing system with locking bands ensures a secure fit, while maintaining a safe distance of 50mm from combustible materials.
SKU: 3-250-204
| Technical Specifications | |
|---|---|
| SKU | 3-250-204 |
| Model | Non-Concentric Increaser 3 Diameters - u00d8 250 |
| Material | 316L Stainless Steel |
| System | SWPro |
| Approvals | CE, EN 1856-1 |
| Diameter Range | u00d8 80 up to u00d8 200 / u00d8 250 up to u00d8 400 |
| Distance To Combustibles | 50mm |
| Warranty | 10 Years |
| Fuels | Gas, Oil |
| Installation | Push-fit joint with locking bands and high-pressure gaskets |
What our experts say!
"The Non-Concentric Increaser 3 Diameters - Ø 250 is a fantastic addition to any modular flue system. It is high quality, easy to install, and exceptionally reliable. National Flues is proud to offer this product nationwide to both retail and trade customers, ensuring prompt and secure delivery. Our unbeatable prices and excellent service make us the go-to choice for all your flue needs."
This product is used to increase the diameter of a flue system in a way that prevents condensate pooling, making it ideal for inclined runs.
National Flues specialises in supplying high-quality fireplaces and flue systems to both retail and trade customers across the UK. Known for our competitive prices, reliable delivery, and excellent service, we are a trusted name in the industry.
