Non-concentric increaser - Ø 250 (3-250-004)
At a Glance
- Premium 316L Stainless Steel construction
Compatible with the SWPro modular flue system
Efficient diameter increaser to prevent condensate pooling
Suitable for both high and low-temperature, condensing and non-condensing applications
CE marked and compliant with EN 1856-1 standards
Versatile use for boilers, ovens, and ventilation systems
Secure push-fit jointing system with a Locking Band
Designed for high-pressure installations with gasket use
Maintains a safe 50mm distance from combustibles
Backed by a 10-year warranty
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 - Ø 250 is an essential component in the SWPro modular single wall flue system. Manufactured from premium 316L stainless steel, this increaser is designed to boost the diameter of your flue system efficiently. Suitable for both high and low-temperature applications, non-condensing and condensing systems, it ensures no condensate pooling thanks to its intelligent design.
CE marked and compliant with EN 1856-1 standards, it promises reliability and safety. Whether you need it for boilers, ovens, ventilation systems, or as a chimney shaft liner, this increaser fits perfectly with a push-fit jointing system secured by a Locking Band. For high-pressure installations (P1 and H1), make sure to fit jointing gaskets on every join, maintaining a 50mm clearance from combustible materials.
SKU: 3-250-004
| Technical Specifications | |
|---|---|
| SKU | 3-250-004 |
| Product Name | Non-Concentric Increaser - u00d8 250 |
| Dimensions | Designed for flue systems from u00d8 250 up to u00d8 400 |
| Inner Material | 316L Stainless Steel |
| Outer Material | N/A |
| Fuels | Gas, Oil |
| Approvals | CE, EN 1856-1 |
| Distance To Combustibles | 50mm |
| Warranty | 10 Years |
| System | SWPro |
| Jointing | Push-fit jointing with Locking Band; use jointing gaskets for P1/H1 installations |
What our experts say!
"The Non-Concentric Increaser - Ø 250 is a top-tier component in our SWPro flue system range. With a seamless fitting design and robust construction, this increaser is ideal for a multitude of installation scenarios. National Flues delivers this high-quality product nationwide, catering to both retail and trade customers with exceptional service and competitive pricing."
The Non-Concentric Increaser - Ø 250 is used to increase the diameter of a flue system, preventing potential condensate pooling and ensuring optimal performance in various applications such as boilers, ovens, and ventilation systems.
National Flues is a trusted supplier of high-quality fireplaces and flue systems across the UK. Known for unbeatable prices and reliable delivery, we cater to both retail and trade customers with a commitment to excellence and secure online payment options.
