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Twin Wall to Twin Wall Increaser Ø 175 - Ø 200 (2-175-004)

National Flues presents its premium Twin Wall to Twin Wall Increaser Ø 175 - Ø 200, designed to flawlessly upgrade and adapt your TWPro flue systems. Made with high-grade 304 and 316 stainless steel, this accessory is indispensable for woodstove, oil, and gas boiler applications. Enjoy unmatched durability, efficiency, and safety with our HETAS approved and CE marked system enhancer.
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Great value at £125.99
including free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

    Compatible with numerous fuel types including wood, oil, gas, and low sulphur coal.
    Constructed using high-quality 304 and 316 stainless steel, both 0.40mm thick, for lasting durability.
    Designed specifically for TWPro chimney systems, ensuring a secure and efficient diameter expansion from Ø 175 to Ø 200.
    CE marked and HETAS approved, meeting stringent safety standards.
    Features effective compressed rockwool insulation with a density of 200kg/m³ to ensure excellent thermal efficiency.
    Offers a quick and reliable solution to adapt your chimney system to varying appliance requirements.

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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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Twin Wall to Twin Wall Increaser Ø 175 - Ø 200 is an essential accessory for expanding your chimney flue system. This increaser is suitable for use with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and oil and gas boilers. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick, this increaser guarantees durability and long-lasting performance.

The insulation consists of compressed rockwool with a density of 200kg/m³, ensuring excellent thermal efficiency. The product meets the highest safety standards with a CE mark and HETAS approval. Installation is straightforward, requiring the use of a Locking Band to secure the chimney parts, and it is crucial to maintain a 50mm distance from combustibles.

This product is designed to expand the diameter of your chimney system in 25mm increments, facilitating easy adaptation to various system requirements.

SKU: 2-175-004

Technical Specifications
Diameter Expansionu00d8 175 to u00d8 200
Outer Material304 Stainless Steel, 0.40mm thick
Inner Material316 Stainless Steel, 0.40mm thick
InsulationCompressed Rockwool, 200kg/mu00b3
CertificationsHETAS / CE
Combustible Clearance50mm
System CompatibilityTWPro Chimney Systems
Fuel TypesWood, Oil, Gas, Low Sulphur Coal
Installation is straightforward but requires careful attention to safety. Always use a Locking Band to secure the individual chimney parts together. During installation, ensure there is a minimum clearance of 50mm from any combustible material around the flue. For best results, follow local building regulations and consider consulting a professional installer if you are not familiar with chimney systems. Regular inspections post-installation are recommended to maintain system efficiency and safety.

The increaser is primarily used to expand the diameter of your TWPro chimney flue system to accommodate different appliance sizes and requirements.

Yes, the increaser is suitable for use with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and oil and gas boilers.

The outer skin is made of 304 grade stainless steel and the inner skin is made of 316 grade stainless steel, both 0.4mm thick. The insulation is compressed rockwool with a density of 200kg/m³.

The Twin Wall to Twin Wall Increaser is HETAS approved and CE marked, meeting stringent safety and quality standards.

Installation involves securing the TWPro Twin Wall Insulated Chimney parts together with a Locking Band. Ensure a 50mm distance from the outside of the flue to any combustible materials.

This particular model increases the diameter from Ø 175mm to Ø 200mm, offering a flexible solution for your chimney flue system.

National Flues provides top-quality products at competitive prices, with reliable delivery nationwide. We cater to both retail and trade customers, ensuring secure online payments for a seamless shopping experience.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, May 23rd. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call. If you need faster stove or fireplace delivery please also 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. 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

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