Joist Support - Ø 200
At a Glance
- Suitable for solid fuel, gas, and oil appliances
- Constructed with premium stainless steel (304 & 316 grades)
- Features compressed rockwool insulation for thermal protection
- HETAS approved and CE marked for industry compliance
- Ensures even weight distribution across floor joists

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
Our Joist Support - Ø 200 is expertly designed for use with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and oil/gas boilers. The support piece is constructed with an outer skin made from durable 304 grade stainless steel (0.4mm thick) and an inner skin from 316 grade stainless steel (0.4mm thick). This construction ensures longevity and reliability.
The insulating layer is made from compressed rockwool, offering excellent density and thermal protection. The required distance to combustibles is 50mm for TWPro and 60mm for KC. All components are fully welded, ensuring a secure build.
Our product is HETAS approved, CE marked, and comes with various designations for different applications. Installation is straightforward with TWPro Twin Wall Insulated Chimney parts secured using a Locking Band.
SKU: 15-200-068
Technical Specifications | |
---|---|
SKU | 15-200-068 |
Product Name | Joist Support - u00d8 200 |
Designations | TWPro EN1856-1 T600 N1 W V2 L50040 TWPro G50/ KC G60 |
System | TWPro / KC |
Inner Material | 316L Stainless Steel (0.4mm) |
Outer Material | 304 Stainless Steel (0.4mm) |
Insulation | Compressed rockwool (TWPro density: 200kg/m3, KC density: 128kg/m3) |
Fuels | Wood, Oil, Gas, Low sulphur coal |
Distance To Combustibles | TWPro: 50mm, KC: 60mm |
Load Support Maximum Distance | 3 metres |
Approvals | HETAS, CE |
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 Joist Support - Ø 200 is a robust, high-quality solution perfect for both retail and trade customers. With unbeatable prices and reliable nationwide delivery, National Flues ensures your project runs smoothly.
This Joist Support is designed to support a chimney as it passes through floor joists, ensuring even weight distribution and secure installation.
National Flues, a premier supplier of fireplaces and flues, offers reliable products and services nationwide. Known for competitive pricing and dependable delivery, we support both retail and trade customers with our high-quality offerings.
