TWPro MB - Twin Wall to Twin Wall Increaser - Ø 150-175mm (37-150-004)
At a Glance
- HETAS approved & CE marked
Compatible with a range of solid fuel, gas, and oil appliances
Durable construction with 304 stainless steel outer skin and 316L stainless steel inner skin
Fully welded for enhanced stability and longevity
Efficiently transitions flue sizes from 150mm to 175mm
Insulated with dense compressed rockwool at 200kg/m³
Quick installation with a supplied locking band
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 - Twin Wall to Twin Wall Increaser - Ø 150-175mm is engineered for enhancing chimney flue systems for solid fuel and gas/oil appliances. It excels in connecting various types of stoves and boilers such as wood stoves, gas coal effect fires, oil boilers, and any solid fuel appliances that require a robust flue system. Constructed with a 304 stainless steel outer skin with a high-temperature black finish and a 316 grade stainless steel inner skin, this increaser ensures longevity and efficiency.
Measuring 0.4mm in thickness, both skins are insulated with a dense compressed rockwool at 200kg/m³. The entire assembly is fully welded to guarantee sturdiness and reliability. For safety, it maintains a 50mm distance from combustible materials such as wood and plasterboard.
The TWPro MB module boasts HETAS approval and CE marking, attesting to its high quality and safety standards. Users can secure all parts easily using a supplied locking band, ensuring quick and efficient installation. Key compliance designations are EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, marking its suitability for up to 600°C.
SKU: 37-150-004
| Technical Specifications | |
|---|---|
| Model | TWPro MB |
| Flue Size | 150-175mm |
| Outer Material | 304 Stainless Steel, 0.4mm thick, High Temperature Black Coated |
| Inner Material | 316L Stainless Steel, 0.4mm thick |
| Insulation | Dense compressed rockwool at 200kg/mu00b3 |
| Compliance | EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 P1 W V2 L50040 O20 |
| Approval | HETAS / CE |
| Installation | Supplied locking band; maintain 50mm clearance from combustibles |
| Compatible Fuels | Wood, Oil, Gas, Low sulphur coal |
| Operating Temperature | Up to 600u00b0C |
