Twin Wall to Twin Wall Increaser Ø 150 - Ø 175 (2-150-004)
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Fast deliveryMonday, November 17th*
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Best PriceCall us to beat any price you found online.
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At a Glance
- Precision engineered for twin wall chimneys - Upgrades diameter from Ø 150 to Ø 175 seamlessly - Constructed with 316L and 304 stainless steel for durability - Insulated with high-density compressed rockwool (200kg/m³) - HETAS Approved and CE Marked for safety and reliability - Compatible with a wide range of appliances including solid fuel and gas/oil systems
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: sales@nationalflues.com
- Details
- Specs
- Install/Packs
- FAQs
The Twin Wall to Twin Wall Increaser Ø 150 - Ø 175 is designed for both solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, oil and gas boilers, and any solid fuel appliances. Constructed with precision, it features an outer skin made from 304 grade stainless steel and an inner skin of 316 grade stainless steel, both with a thickness of 0.4mm. To ensure optimal performance and safety, it includes compressed rockwool insulation with a density of 200kg/m³.
All parts are fully welded, ensuring robust durability.This increaser is HETAS Approved and CE marked, assuring you of its high quality and safety standards. It meets the designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20. Installation is straightforward with the use of a Locking Band, and it’s crucial to maintain a distance of 50mm from the flue to any combustible material, such as wood or plasterboard.Opt for this increaser to enhance your chimney flue setup seamlessly, ensuring your heating system operates efficiently and safely.
Its compatibility with a variety of appliances makes it a versatile and essential component in any heating system.
SKU: 2-150-004
Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.
About National Flues Ltd +
We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.
This is us — real advice over the phone, or at the counter, and real stock in our warehouse.
| Technical Specifications | |
|---|---|
| SKU | 2-150-004 |
| Diameter Increase | Ø 150 to Ø 175 |
| Inner Material | 316L Stainless Steel (0.40mm) |
| Outer Material | 304 Stainless Steel (0.40mm) |
| Insulation | Compressed Rockwool (200kg/m³) |
| Certifications | HETAS Approved, CE Marked |
| Designation Numbers | EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 W V2 L50040 O20 |
| Minimum Clearance | 50mm from combustible materials |