TWPro MB - Twin Wall to Twin Wall Increaser - Ø 125-150mm (37-125-004)
At a Glance
- Compatible with solid fuel and gas/oil appliances
Robust construction with dual stainless steel layers
High temperature black coated outer skin
Compressed rockwool insulation (200kg/m3) for efficient heat retention
HETAS approved and CE marked for safety
Maintains a safe 50mm clearance from combustibles
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 125-150mm) is a versatile component designed for solid fuel and gas/oil appliances including woodstoves, gas coal effect fires, oil boilers, and gas boilers. Constructed with an outer skin of 304 stainless steel and an inner skin of 316 stainless steel, both 0.4mm thick, this increaser guarantees durability and superior performance. The high temperature black finish on the outer skin not only enhances its aesthetic appeal but also provides robust protection against heat.
The insulation is made of compressed rockwool with a density of 200kg/m3, ensuring efficient heat retention. Fully welded for robustness, this increaser mandates a safe distance of 50mm from combustible materials such as wood and plasterboard. Proudly carrying HETAS approval and CE marking, it adheres to EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20 standards.
Installation is straightforward, requiring the use of a Locking Band to secure the parts together, ensuring a hassle-free setup.
SKU: 37-125-004
| Technical Specifications | |
|---|---|
| SKU | 37-125-004 |
| Size | 125mm to 150mm |
| Inner Material | 316L Stainless Steel - 0.40mm thick |
| Outer Material | 304 Stainless Steel - 0.40mm thick with high temperature black coating |
| Insulation | Compressed Rockwool (200kg/m3) |
| Approvals | HETAS / CE |
| Clearance | 50mm from combustible materials |
| Designation | EN1856-1 T600 N1 W V2 L50040 G50 / EN1856-1 T200 P1 W V2 L50040 O20 |
| System | TWPro Black |
| Applications | Woodstoves, gas coal effect fires, oil boilers, gas boilers |
