Chest Mounting Plate Ø 125
At a Glance
- Seamless transition from MI-Flex to TWPro systems
- Constructed with dual stainless steel layers (304 outer & 316 inner, both 0.40mm)
- Compressed rockwool insulation (200kg/m³) for enhanced safety
- HETAS approved and CE marked to EN1856 standards
- Simple Locking Band installation ensuring a secure fit with a 50mm clearance from combustibles

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 Chest Mounting Plate Ø 125 is designed to facilitate the flawless transition between MI-Flex flue liners and TWPro Twin Wall Insulated Chimneys. Suitable for various applications, including wood stoves, gas coal-effect fires, and oil and gas boilers, this mounting plate is a versatile and indispensable component in your chimney system. Constructed with an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, both at 0.4mm thickness, this plate guarantees durability and high performance.
The insulation, made of compressed rockwool with a density of 200kg/m3, ensures safety and efficiency. All parts are fully welded for maximum integrity. The TWPro system is HETAS approved and CE marked, meeting the stringent standards defined by the EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20 designations.
Installation is straightforward with the use of a Locking Band, ensuring a secure fit. Keep a distance of 50mm from any combustible materials.
SKU: 2-125-062
Technical Specifications | |
---|---|
SKU | 2-125-062 |
Product Name | Chest Mounting Plate Ø 125 |
Outer Material | 304 Stainless Steel, 0.40mm thick |
Inner Material | 316 Stainless Steel, 0.40mm thick |
Insulation | Compressed Rockwool, 200kg/m^3 |
Approval | HETAS / CE |
Standards | EN1856-1 T600 N1 W V2 L50040 G50, EN1856-1 T200 W V2 L50040 O20 |
Installation | Locking Band, 50mm clearance from combustibles |
Application | Wood stoves, Oil, Gas, Low sulphur coal appliances |
System | TWPro |
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
The Chest Mounting Plate Ø 125 is an essential component for any solid fuel or gas appliance installation. Its high-quality construction and approval ratings ensure a reliable performance. National Flues is proud to offer this product to retail and trade customers nationwide, rarely beaten on price and with reliable delivery.
The Chest Mounting Plate Ø 125 is used to transition between MI-Flex flue liners and TWPro Twin Wall Insulated Chimneys, providing a secure and reliable connection for various solid fuel and gas appliances.
National Flues is a leading supplier of high-quality fireplaces and flues, offering reliable delivery and competitive pricing nationwide. We serve both retail and trade customers, ensuring top-notch products and service.
