TWPro MB - Single Wall to Twin Wall Increaser - Ø 200-Ø 250 (37-200-002)

At a Glance
- Durable dual stainless steel construction (304 outer, 316L inner), each 0.40mm thick
High-temperature black coated finish for a sleek, resilient appearance
Compressed rockwool insulation (200kg/m3) for superior heat resistance
Designed to connect Ø200mm single wall pipes to Ø250mm twin wall systems
HETAS approved and CE marked for safety and quality compliance
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 200-Ø 250 is an essential component for connecting your solid fuel, gas, or oil appliances to a larger diameter twin wall flue system. Constructed with a robust outer skin made from 304 stainless steel and an equally resilient inner skin made from 316 grade stainless steel, each 0.4mm thick, this increaser is built to last. The increaser is coated in a high-temperature black finish, ensuring it not only performs well but also looks great.
Featuring compressed rockwool insulation with a density of 200kg/m3, it offers excellent heat resistance and safety. All parts are fully welded, guaranteeing durability and reliability. It is HETAS approved and CE marked, meeting crucial safety and quality standards.
The product designation numbers are EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20. Installation is straightforward with the included Locking Band, and maintaining a 50mm distance from combustibles is critical for safety. Choose the TWPro MB Increaser for seamless, safe, and efficient appliance connections.
SKU: 37-200-002
SKU | 37-200-002 |
---|---|
Item | TWPro MB - Single Wall to Twin Wall Increaser - u00d8 200-u00d8 250 |
Designation: | EN1856-1 T600 N1 W V2 L50040 G50 |
EN1856-1 T200 P1 W V2 L50040 020 | |
System: | TWPro Black |
Inner Material: | 316L Stainless Steel - 0.40mm thick |
Outer Material: | 304 Stainless Steel - 0.40mm thick - High Temperature Black Coated |
Fuels: | Wood, Oil, Gas, Low sulpher coal |
Approvals: | HETAS / CE |
Distance To Combustibles: | 50mm |