Non-concentric increaser 2 diameters - Ø 700 (3-700-104)
At a Glance
- High-grade 316L Stainless Steel construction for durability
- CE marked and compliant with EN 1856-1 standards
- Adaptable design for both condensing and non-condensing applications
- Push-fit jointing system secured with a locking band for easy installation
- Engineered for optimal performance in inclined flue runs, preventing condensate pooling
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, August 15th. 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 2 diameters - Ø 700 is an essential component for effective chimney and flue systems. Designed by industry leaders, this increaser is crafted from high-grade 316L stainless steel, ensuring durability and resistance against high temperatures and corrosive flue gases. The SWPro modular single wall flue system it belongs to is CE marked and meets rigorous European standards: EN 1856-1: T200 H1 W Vm L50040 O(50) for diameters Ø 80 up to Ø 200 and EN 1856-1: T200 H1 W Vm L50050 O(50) for diameters Ø 250 up to Ø 400.
Ideal for use in boilers, ovens, ventilation systems, and as a chimney shaft liner, this non-concentric increaser adapts to both condensing and non-condensing applications, supporting positive and negative pressure. Its push-fit jointing system with a locking band ensures easy installation, while the high-pressure sealing gasket keeps the system airtight. Ensure a 50mm gap from any combustible material to maintain safety compliance.
SKU: 3-700-104
| Technical Specifications | |
|---|---|
| SKU | 3-700-104 |
| Diameter | Ø 700 |
| Material | 316L Stainless Steel |
| Standards | EN 1856-1: T200 H1 W Vm L50040 O(50) and EN 1856-1: T200 H1 W Vm L50050 O(50) |
| System | SWPro modular single wall flue system |
| Fuels | Gas, Oil |
| Approvals | CE |
| Safety Distance | 50mm from combustible materials |
| Warranty | 10 Years |
What our experts say!
"The Non-concentric Increaser 2 Diameters - Ø 700 is an exceptional addition to any flue system. Perfectly designed for both retail and trade customers, our product ensures unmatched quality and reliability. Rarely beaten on price, National Flues offers nationwide delivery and highly competitive trade accounts."
The Non-concentric Increaser 2 Diameters - Ø 700 is used to increase the diameter of flue systems, particularly in inclined runs, to enhance system performance and prevent condensate pooling.
National Flues is a nationwide supplier of high-quality fireplaces and flues, committed to delivering exceptional products rarely beaten on price. We cater to both retail and trade customers, ensuring secure online payments and reliable delivery.
