Round Finishing Plate 45° (1 Piece) - Ø 150
At a Glance
- Constructed with dual layers: outer 304-grade and inner 316-grade stainless steel (0.40mm thick each)
- Neat, professional finish for flue pipe wall penetrations at a 45° angle
- Fully HETAS approved and CE marked for strict safety compliance
- Compatible with multiple fuel types: wood, oil, gas, and low sulphur coal
- Incorporates high-density compressed rockwool insulation for superior thermal efficiency
- Simple installation using silicone and screws for a secure, lasting mount

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 Round Finishing Plate 45° (Ø 150) from National Flues is a premium product used to create a neat and professional appearance where a flue pipe penetrates a wall at a 45° angle. This plate is constructed with durability in mind, featuring an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, both 0.4mm thick. The insulation consists of high-density compressed rockwool, ensuring excellent thermal efficiency.
Our finishing plate is compatible with a variety of appliances, including solid fuel stoves, gas coal effect fires, and oil and gas boilers. Rest easy knowing it’s fully HETAS approved and CE marked, meeting the strictest safety and quality standards. The TWPro Twin Wall Insulated Chimney parts are easy to install using a Locking Band to secure segments, maintaining the necessary clearances from combustible materials such as wood and plasterboard.
SKU: 15-150-114
Technical Specifications | |
---|---|
Outer Material | 304 Stainless Steel (0.40mm thick) |
Inner Material | 316 Stainless Steel (0.40mm thick) |
Insulation | High-density compressed rockwool |
Diameter | u00d8 150mm |
Fitting Angle | 45u00b0 |
Certifications | HETAS, CE |
Clearance | TWPro 50mm / KC 60mm |
Compatible Fuels | Wood, Oil, Gas, Low Sulphur Coal |
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 Round Finishing Plate 45° (Ø 150) is a top-tier accessory designed for a tidy flue installation. National Flues rarely get beaten on price and offer reliable nationwide delivery, catering to both retail and trade customers.
The Round Finishing Plate 45° (Ø 150) is used to create a neat finish around the flue pipe where it exits through a wall at a 45° angle, suitable for a range of heating appliances.
National Flues is a leading supplier of fireplaces and flues across the UK, offering competitive prices, reliable delivery, and exceptional customer service for both retail and trade customers.
