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Wall Support 210mm-420mm - Ø 175 (15-175-055)

National Flues presents the Wall Support 210mm-420mm - Ø 175, a premium solution designed for secure chimney installations. Our product, engineered with top-grade stainless steel and advanced insulation, guarantees reliable support for twin wall insulated chimneys. Ideal for wood stoves, oil and gas boilers, and versatile enough for various fuel types, this robust wall support is the trusted choice for ensuring both safety and efficiency. Enhance your home’s heating system with this dependable accessory from National Flues.
£95.99
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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.

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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 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
SKU15-175-055
Adjustable Length210mm to 420mm
Wall Distance Adjustment80mm to 420mm
MaterialOuter: 304 Stainless Steel, Inner: 316 Stainless Steel (0.4mm thick)
InsulationCompressed Rockwool (200kg/m3 TWPro / 128kg/m3 KC)
Fuel CompatibilityWood, Oil, Gas, Low Sulpher Coal
ApprovalsHETAS, CE
Distance To CombustiblesTWPro: 50mm, KC: 60mm
Installation MethodUsing a recommended locking band
SystemTwin Wall Insulated Chimney (TWPro / KC)
Installation of the Wall Support 210mm-420mm - Ø 175 is straightforward yet requires careful adherence to safety guidelines. First, measure your chimney installation to determine the correct placement intervals, recommending supports every 3 metres. Adjust the support to the required length between 210mm and 420mm and ensure that the distance from the wall surface is set between 80mm and 420mm depending on your installation needs. Attach the support securely using the appropriate locking band, making sure all joints are properly welded and fastened. It is critical to observe the minimum distances to combustibles: 50mm for TWPro systems and 60mm for KC systems. Always refer to the manufacturer’s installation instructions and use only the recommended fixings to maintain safety and optimise performance. If in doubt, consult a professional installer to ensure compliance with local building regulations.

The wall support has an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both with a thickness of 0.4mm, ensuring durability and strength.

This wall support is suitable for solid fuel, gas, and oil appliances including wood stoves, gas coal effect fires, and oil and gas boilers.

For TWPro systems, maintain a 50mm distance to combustibles, while for KC systems, maintain a 60mm distance.

Yes, the wall support is HETAS approved and CE marked, meeting all necessary European safety and performance standards.

Wall supports should be installed at a minimum interval of every 3 metres for optimal lateral stability.

The TWPro Twin Wall Insulated Chimney parts are secured with a locking band. Ensure the correct distance from combustibles is maintained during installation.

Yes, the wall support can be adjusted from 210mm to 420mm, and it may need to be manually cut to achieve the desired length.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, May 21st. 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.

Read our review in our Wall Support 210mm-420mm - Ø 175 buyers guide

Choose the Wall Support 210mm-420mm - Ø 175 today for uncompromised quality and dependable chimney safety.

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