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TWPro MB - Twin Wall to Twin Wall Increaser - Ø 175-Ø 200 (37-175-004)

Discover the National Flues TWPro MB Twin Wall to Twin Wall Increaser – a premium adaption solution designed for robust, efficient, and reliable flue systems. Perfect for a range of heating appliances including wood stoves, oil boilers, and gas devices, this high-performance adapter blends quality engineering with practical versatility. Read more...
TWPro MB - Twin Wall to Twin Wall Increaser - Ø 175-Ø 200
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At a Glance

  • Premium 316L and 304 stainless steel construction with high-temperature black finish
  • Fully welded design ensuring robust durability
  • Compressed rockwool insulation (200kg/m³) for optimal heat retention
  • Precisely designed to connect twin wall systems in 25mm increments
  • Suitable for wood, oil, gas, and low sulphur coal appliances
  • HETAS approved and CE marked for safety and compliance
  • Easy installation with secure locking bands and 50mm clearance requirement

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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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:

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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The TWPro MB Twin Wall to Twin Wall Increaser (Ø 175-Ø 200) is a top-tier solution for those looking to enhance their chimney system. This innovative product is ideal for a range of appliances including wood stoves, gas coal effect fires, oil boilers, and any solid fuel devices. Constructed meticulously with an outer skin of 304 stainless steel, coated in a high-temperature black finish, and an inner skin of 316 grade stainless steel, this increaser is built to withstand rigorous conditions.

With a compressed rockwool insulation boasting a density of 200kg/m3, it ensures excellent heat retention. All parts are fully welded, guaranteeing durability and performance. The TWPro series meets HETAS and CE certifications, ensuring safety and compliance.

Installation is straightforward with secure locking bands included, and the necessary 50mm clearance from combustibles is easily achievable. Enhance your flue system today with the TWPro MB Increaser, a trusted component from National Flues.

SKU: 37-175-004

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
ModelTWPro MB
ApplicationTwin Wall to Twin Wall Increaser
SizeØ 175-Ø 200
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick) with high-temperature black coating
InsulationCompressed Rockwool (200kg/m³)
CertificationsHETAS, CE
Clearance Requirement50mm from combustibles
Suitable FuelsWood, Oil, Gas, Low Sulphur Coal
Installation is straightforward: Ensure you have a minimum 50mm clearance from any combustible material. The product comes with secure locking bands designed for a tight, safe fit. Follow the manufacturer’s guidelines exactly and refer to local regulations to ensure compliance. If you are uncomfortable with setting up the system yourself, professional installers are available to assist with a hassle-free assembly.

The TWPro MB Increaser is suitable for solid fuel and gas/oil appliances like wood stoves, gas coal effect fires, oil boilers, and other solid fuel appliances.

The outer skin is crafted from 304 stainless steel with a high-temperature black finish, while the inner skin is made from 316 grade stainless steel. It also includes compressed rockwool insulation with a density of 200kg/m3.

Yes, installation is straightforward with the provided locking bands. Ensure a 50mm clearance from any combustible materials.

The TWPro MB Increaser is HETAS Approved and CE marked, adhering to strict safety and performance standards, including EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.

This clearance is crucial to prevent any fire hazards by ensuring that the heat from the flue does not ignite nearby combustible materials.

Yes, the TWPro MB series includes increasers in various sizes to cater to different needs, all increasing in precise 25mm increments.

The high-temperature black finish not only provides an aesthetic appeal but also adds an extra layer of protection, ensuring the increaser withstands high operational temperatures and harsh conditions.

 

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