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TWPro MB - Rain Cap - Ø 100 (37-100-090)

National Flues proudly offers the TWPro MB - Rain Cap Ø 100, an essential accessory for protecting your chimney flue from rainwater ingress. Engineered for durability and efficiency, this premium chimney terminal is ideal for enhancing the performance of woodstoves, oil boilers, and gas appliances while maintaining its robust construction using high-grade stainless steel and advanced insulation techniques.
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£40.49
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At a Glance

  • High-grade 304 Stainless Steel outer skin with high-temperature black finish
  • Durable 316L Stainless Steel inner skin ensuring long life
  • Compressed rockwool insulation (200kg/m³) for optimal thermal performance
  • Fully welded construction for enhanced integrity
  • HETAS approved and CE marked to meet stringent safety standards
  • Maintains essential 50mm clearance to combustibles for safety

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.
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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.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The TWPro MB - Rain Cap Ø100 is a top-tier terminal solution designed to provide effective rain protection for your chimney flue. Crafted for use with solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, oil boilers, and other solid fuel devices, this rain cap ensures optimal functionality. Its construction features an outer skin made from 304 stainless steel, 0.4mm thick, with a high-temperature black finish, and an inner skin made from 316-grade stainless steel, also 0.4mm thick.

The core is insulated with compressed rockwool at a density of 200kg/m3, ensuring durability and efficiency. Fully welded for enhanced integrity, this rain cap maintains a critical 50mm distance to combustible materials for safety. Approved by HETAS and CE marked, it meets the stringent standards of EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.

Installation is straightforward with a securing Locking Band provided, making it a hassle-free addition to your chimney system.

SKU: 37-100-090

Technical Specifications
Outer Material304 Stainless Steel - 0.40mm thick with High Temperature Black Coating
Inner Material316L Stainless Steel - 0.40mm thick
InsulationCompressed Rockwool 200kg/mu00b3
ApprovalsHETAS, CE Marked
StandardsEN1856-1 T600 N1 W V2 L50040 G50 & EN1856-1 T200 P1 W V2 L50040 O20
Clearance50mm from combustible materials
Applicable FuelsWood, Oil, Gas, Low Sulphur Coal
Securing MethodLocking Band provided
InstallationQuick and straightforward with minimal additional accessories required
Begin by ensuring your flue is clean and ready for the new rain cap. Position the TWPro MB - Rain Cap Ø 100 atop your chimney system, ensuring a minimum clearance of 50mm from any combustible materials such as wood or plasterboard. Secure the cap firmly using the provided Locking Band. Carefully verify that the cap aligns correctly with your flue outlet to prevent any water ingress. If you face difficulties or are unsure about any step during installation, it is recommended that you consult with a professional installer to ensure compliance with safety standards.

The TWPro MB - Rain Cap Ø100 is suitable for solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, oil boilers, and all solid fuel devices.

The outer skin is made from 304 stainless steel with a high-temperature black finish, while the inner skin features 316-grade stainless steel. Both are 0.4mm thick.

The rain cap is insulated with compressed rockwool, providing a density of 200kg/m3 to ensure high efficiency and durability.

Yes, the rain cap is HETAS approved and CE marked, meeting standards EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.

A minimum distance of 50mm should be maintained from the outside of the flue to any combustible materials such as wood or plasterboard.

The rain cap is secured using a Locking Band, which is supplied with the product, ensuring a tight and safe fit.

Absolutely! The TWPro MB - Rain Cap Ø100 is versatile and suitable for both residential and commercial chimney systems.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our TWPro MB - Rain Cap - Ø 100 buyers guide

Act now to secure dependable protection for your chimney – safety and performance are just a click away!

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