TWPro MB - Single Wall to Twin Wall Increaser - Ø 100-125mm (37-100-002)
At a Glance
- Robust stainless steel construction (304 outer with high-temperature black coating and 316 inner)
Superior thermal insulation using compressed rockwool (200kg/m3 density)
HETAS approved and CE marked for safety and compliance
Easy installation with included Locking Band
Suitable for a range of appliances including woodstoves, gas, oil, and low sulphur coal systems
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. 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. 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.
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]
- Info
- Specs
- Install
- FAQs
The TWPro MB - Single Wall to Twin Wall Increaser (Ø 100-125mm) is a versatile and essential component for connecting single wall flues to twin wall insulated chimney systems. Designed for use with solid fuel, gas, and oil appliances such as woodstoves, gas coal-effect fires, and boilers, this adaptor ensures a smooth and secure transition. Constructed with a robust 304 stainless steel outer skin coated in a high-temperature black finish, and a durable 316 grade stainless steel inner skin, this increaser guarantees longevity and reliability.
The insulation consists of compressed rockwool with a density of 200kg/m3, ensuring exceptional thermal performance. Fully welded for enhanced durability, the TWPro MB is HETAS approved and CE marked, meeting stringent safety and quality standards. Installation is straightforward with the included Locking Band, and maintaining the required 50mm distance from combustible materials ensures a safe setup.
SKU: 37-100-002
| Technical Specifications | |
|---|---|
| Model | TWPro MB - Single Wall to Twin Wall Increaser |
| Size | u00d8 100-125mm |
| Outer Material | 304 Stainless Steel with High-Temperature Black Coating (0.40mm thick) |
| Inner Material | 316L Stainless Steel (0.40mm thick) |
| Insulation | Compressed Rockwool, Density 200kg/m3 |
| Approval | HETAS / CE |
| Compatible Fuels | Wood, Oil, Gas, Low Sulphur Coal |
| Minimum Distance To Combustibles | 50mm |
| Installation | Includes Locking Band for secured setup |
