Twin Wall to Twin Wall Increaser Ø 175 - Ø 200 (2-175-004)
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.
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 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 Expansion | u00d8 175 to u00d8 200 |
| Outer Material | 304 Stainless Steel, 0.40mm thick |
| Inner Material | 316 Stainless Steel, 0.40mm thick |
| Insulation | Compressed Rockwool, 200kg/mu00b3 |
| Certifications | HETAS / CE |
| Combustible Clearance | 50mm |
| System Compatibility | TWPro Chimney Systems |
| Fuel Types | Wood, Oil, Gas, Low Sulphur Coal |
