Wall Support 210mm-420mm - Ø 175
At a Glance
- Adjustable length from 210mm to 420mm
- Constructed with premium 304 and 316 grade stainless steel (0.4mm thick)
- Compressed rockwool insulation for superior thermal performance
- Fully welded design for enhanced durability and strength
- HETAS approved and CE marked for safety compliance
- Suitable for solid fuel, gas, and oil appliances, including wood stoves and boilers
- Provides robust lateral support for a secure chimney structure

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 Wall Support 210mm-420mm - Ø 175 is designed for robust lateral support of chimney systems used with solid fuel, gas, and oil appliances such as wood stoves, gas coal effect fires, oil, and gas boilers. Constructed with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both at 0.4mm thickness, it provides exceptional durability. The insulation is made from compressed rockwool, ensuring a high density of 200kg/m3 TWPro / 128Kg/m3.
All components are fully welded for superior strength.With HETAS approval and CE marking, this product meets the highest standards for safety and performance. The TWPro system is designated under multiple European standards, ensuring you have a reliable and compliant product. Installation is straightforward, requiring the use of a locking band to secure parts together.
Importantly, a minimum distance to combustibles must be maintained – 50mm for TWPro and 60mm for KC systems.
SKU: 15-175-055
Technical Specifications | |
---|---|
SKU | 15-175-055 |
Adjustable Length | 210mm to 420mm |
Wall Distance Adjustment | 80mm to 420mm |
Material | Outer: 304 Stainless Steel, Inner: 316 Stainless Steel (0.4mm thick) |
Insulation | Compressed Rockwool (200kg/m3 TWPro / 128kg/m3 KC) |
Fuel Compatibility | Wood, Oil, Gas, Low Sulpher Coal |
Approvals | HETAS, CE |
Distance To Combustibles | TWPro: 50mm, KC: 60mm |
Installation Method | Using a recommended locking band |
System | Twin Wall Insulated Chimney (TWPro / KC) |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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.
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National Flues Ltd Verdict
Our Wall Support 210mm-420mm - Ø 175 is unbeatable in both price and reliability. Engineered with precision using premium stainless steel, it ensures stability and safety for your chimney system. Enjoy nationwide delivery and top-notch service for both retail and trade customers at National Flues.
This product is used to provide lateral support for chimney systems, ensuring they remain securely in place and maintain safe operating conditions.
National Flues is a trusted supplier of high-quality fireplaces and flues across the UK. We provide reliable delivery service and competitive pricing, catering to both retail and trade customers. Our products meet stringent safety and performance standards, ensuring your installation is secure and efficient.
