Single Wall to Twin Wall Increaser Ø 150 - Ø 175 (2-150-002)
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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
- Universal adaptor that connects single wall flue pipes to twin wall systems
- Constructed with 304 stainless steel outer and 316 stainless steel inner layers for durability
- 4mm thick metal construction provides both reliability and safety
- Insulated with high density compressed rockwool (200kg/m3) for excellent thermal resistance
- HETAS approved, CE marked and compliant with EN1856-1 standards
- Maintains mandatory 50mm clearance from combustible materials
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 Single Wall to Twin Wall Increaser Ø 150 - Ø 175 is a universal adaptor designed to connect appliance outlets to TWPro flue systems. It ensures a seamless transition from a single wall to twin wall with an effective 25 mm increase. This increaser is suitable for solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, oil and gas boilers, and any solid fuel devices.
Constructed with a 304 grade stainless steel outer and 316 grade stainless steel inner, both layers are fully welded and 0.4mm thick for maximum durability. Insulated with compressed rockwool at a density of 200kg/m3, it provides exceptional thermal resistance. The TWPro is HETAS approved, CE marked, and meets EN1856-1 standards.
Installation is straightforward with a Locking Band, and a safe distance of 50mm from combustibles is mandated.
SKU: 2-150-002
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 | |
|---|---|
| Dimensions | Ø 150 - Ø 175 |
| SKU | 2-150-002 |
| Inner Material | 316L Stainless Steel (0.40mm thick) |
| Outer Material | 304 Stainless Steel (0.40mm thick) |
| Insulation | Compressed Rockwool, 200kg/m3 |
| Certifications | HETAS, CE, EN1856-1 |
| Safe Distance | 50mm from combustibles |
| Installation Method | Locking Band provided |