TWPro MB - Twin Wall to Twin Wall Increaser - Ø 80-Ø 100mm
At a Glance
- Increases flue diameter from 80mm to 100mm
- Constructed from 304 & 316L stainless steel
- 0.4mm thick durable skins with high-temperature finish
- Complies with HETAS and CE safety standards
- Designed for woodstoves, oil/gas boilers, and more
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]
- Info
- Specs
- Install
- FAQs
The TWPro MB - Twin Wall to Twin Wall Increaser Ø 80-Ø 100mm is the ideal solution for adapting your flue system to accommodate a larger diameter. Perfect for use with solid fuel and gas/oil appliances including woodstoves, gas coal effect fires, oil boilers, and gas boilers, this increaser leverages precision engineering and top-notch materials. The outer skin is crafted from robust 304-grade stainless steel with a 0.4mm thickness, coated in a durable high-temperature black finish for both aesthetics and protection.
Inside, the 316-grade stainless steel inner skin is also 0.4mm thick, surrounding a layer of compressed rockwool insulation with a density of 200kg/m³ for exceptional heat retention and safety. Engineered to maintain a minimum distance of 50mm to combustible materials, this product passes stringent safety standards with HETAS approval and CE marking. All parts are fully welded, ensuring a strong, reliable fit.
Installation is straightforward with a Locking Band (supplied) to secure all components. Adhering to performance designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, you can have confidence in the product's supreme quality and reliability.
SKU: 37-80-004
| Technical Specifications | |
|---|---|
| Flue Diameter Increase | 80mm to 100mm |
| Outer Material | 304 Stainless Steel (0.4mm thick, high-temperature black coated) |
| Inner Material | 316L Stainless Steel (0.4mm thick) |
| Insulation | Compressed Rockwool, 200kg/m³ |
| Clearance | Minimum 50mm from combustibles |
| Approvals | HETAS / CE |
| Performance Designations | EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20 |
| Installation Accessory | Locking Band supplied |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. If you need faster stove or fireplace delivery please give us a call. We can often 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. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
National Flues Ltd Verdict
At National Flues, we're pleased to bring you the TWPro MB - Twin Wall to Twin Wall Increaser Ø 80-Ø 100mm. Perfect for both retail and trade customers, our reliable nationwide delivery ensures you get your products on time. Rarely beaten on price and complete with easy secure online payments, you can't go wrong with this top-quality product. HETAS Approved and CE marked, this increaser fits the bill for safety and performance.
The TWPro MB Increaser is designed to increase the diameter of your flue system from 80mm to 100mm, accommodating a variety of solid fuel and gas/oil appliances.
National Flues is a leading supplier of high-quality flues and fireplaces, serving both retail and trade customers nationwide. Known for reliable delivery and competitive pricing, our products are built to last and meet stringent safety standards.
