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TWPro MB - Single Wall to Twin Wall Increaser - Ø 175-Ø 200

National Flues presents the TWPro MB - Single Wall to Twin Wall Increaser, a premium chimney adapter designed to effortlessly bridge 175mm single wall pipes and 200mm twin wall insulated chimneys. This high-performance increaser is perfect for a range of heating solutions including wood stoves, oil ... More...
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Now only £32.49
Including VAT Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

At a Glance

  • - Premium dual stainless steel construction (316L inner, 304 outer with high-temperature black finish)
  • - Suitable for solid fuel, gas, and oil appliances
  • - HETAS Approved and CE marked for safety and compliance
  • - Includes a secure Locking Band for easy installation
  • - Provides a safe 50mm clearance from combustibles

 

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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: [email protected]

The TWPro MB - Single Wall to Twin Wall Increaser is an essential component for your chimney flue system, especially when upgrading from a 175mm single wall pipe to a 200mm twin wall insulated chimney. Designed for use with solid fuel, gas, and oil appliances, including wood stoves, gas coal effect fires, and boilers, this increaser ensures optimal performance and safety. Constructed with a durable outer skin of 304 grade stainless steel at 0.4mm thickness, it features a high-temperature black finish for added durability.

The inner skin, made from 316 grade stainless steel, also at 0.4mm thickness, ensures longevity. The rockwool insulation boasts a density of 200kg/m³, providing excellent thermal protection. Fully welded parts and a safe distance of 50mm to combustibles make installation straightforward and secure.

The TWPro MB Increaser is HETAS Approved and CE marked, with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, ensuring it meets the highest safety and quality standards. Installation is simplified with the included Locking Band, ensuring a secure and reliable fit.

SKU: 37-175-002

Technical Specifications
SKU37-175-002
Sizeu00d8 175 to u00d8 200
Inner Construction316L Stainless Steel (0.40mm thick)
Outer Construction304 Stainless Steel (0.40mm thick, High Temperature Black Coated)
InsulationRockwool with density of 200kg/mu00b3
ApprovalsHETAS / CE
Distance To Combustibles50mm
System CompatibilityTWPro Black
Designation NumbersEN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20
Installation of the TWPro MB Increaser is designed to be straightforward and safe. Ensure that a clearance of 50mm is maintained between the flue and any combustible material such as wood or plasterboard. The increaser comes with an integrated Locking Band which must be securely fastened during installation. Prior to fitting, double-check that the system meets local building regulations and standards. For optimal performance, ensure that each connection is tight and mechanically sound. This will not only contribute to the system’s efficiency but also guarantee the high safety standards the product is known for.

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

The outer skin is 304 grade stainless steel with a high-temperature black finish, and the inner skin is 316 grade stainless steel. The insulation is compressed rockwool with a density of 200kg/m³.

Yes, the TWPro MB Increaser is HETAS Approved and CE marked, meeting stringent safety and performance standards.

A safety distance of 50mm should be maintained from the outside of the flue to any combustible materials like wood or plasterboard.

Installation is easy with the included Locking Band, which secures the parts together. Just ensure a 50mm clearance from combustibles.

This designation indicates compliance with specific European standards for chimney components, ensuring they meet high safety, efficiency, and durability criteria.

Absolutely. This increaser is designed to be highly durable and versatile, suitable for both small domestic installations and larger, more complex systems.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. If you need faster stove or fireplace delivery please give us a call. We can often 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. Mi-Flex offers a lifetime guarantee. 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. If you find it cheaper within 48 hours, we'll refund the difference.

Read our buyers guide for this TWPro MB - Single Wall to Twin Wall Increaser - Ø 175-Ø 200

National Flues Ltd Verdict

The TWPro MB - Single Wall to Twin Wall Increaser is a top-quality product that ensures a seamless transition between different pipe sizes. HETAS Approved and CE marked, this increaser is built to last with premium materials and expert construction. Whether you're in retail or trade, you'll appreciate our reliable nationwide delivery and exceptional prices. Secure your order today with confidence.

The TWPro MB Increaser is used to seamlessly connect 175mm single wall pipes to 200mm twin wall insulated chimneys, ensuring safe and efficient operation across various heating appliances.

National Flues is a leading supplier of high-quality fireplaces and flue systems in the UK, offering competitive prices, reliable nationwide delivery, and exceptional service to both retail and trade customers.

 

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Order your TWPro MB Increaser now and secure a safer, more efficient flue system for your home.

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