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TWPro MB - Tee Cap with Drain - Ø 100 (37-100-037)

National Flues introduces the TWPro MB Tee Cap with Drain (Ø 100), a high-performance flue accessory engineered for solid fuel, gas, and oil appliances. This premium component delivers exceptional durability, safety, and efficiency, making it a must-have for any advanced chimney flue system. Read more...
TWPro MB - Tee Cap with Drain - Ø 100
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Now only £32.99
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At a Glance

  • Superior 304 stainless steel outer skin with high-temp black finish
  • Durable 316L stainless steel inner layer combined with 0.40mm thickness
  • Insulated with high-density compressed rockwool (200 kg/m³) for enhanced thermal retention
  • Integrated 10mm threaded drain for efficient condensate removal
  • HETAS Approved and CE marked, ensuring compliance and safety
  • Designed for effortless installation on 90°/135° Tee configurations

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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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: sales@nationalflues.com

The TWPro MB Tee Cap with Drain (Ø 100) is engineered for use on solid fuel and gas/oil appliances including woodstoves, gas coal effect fires, oil boilers, and gas boilers. Constructed with a 304 stainless steel outer skin coated in a high-temperature black finish, and a 316 grade stainless steel inner skin, both 0.4mm thick. Insulated with compressed rockwool (density 200kg/m³) and fully welded components ensure durability and safety.

The distance to combustibles is 50mm. This HETAS Approved and CE marked product meets designations EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20. Installation is straightforward with a supplied Locking Band, maintaining a 50mm distance from combustibles such as wood or plasterboard.

Ideal for capping off the bottom or unused end of a 90 or 135 Tee, it also allows for easy sweeping and drainage with its 10mm threaded drain for condense removal.

SKU: 37-100-037

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
SKU37-100-037
DimensionsØ 100mm Tee Cap, designed for 90°/135° configurations
Inner Material316L Stainless Steel (0.40mm thick)
Outer Material304 Stainless Steel (0.40mm thick with high-temp black coating)
InsulationCompressed Rockwool (200 kg/m³)
Drain10mm threaded drain for efficient condensate removal
ApprovalsHETAS Approved, CE marked
Distance To Combustibles50mm
Design StandardsEN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20
Installation is straightforward. Begin by ensuring the flue system is thoroughly cleaned and free of debris. Position the TWPro MB Tee Cap at the bottom or unused end of your 90° or 135° Tee, taking care to maintain a minimum clearance of 50mm from all combustible materials. Secure the cap using the supplied Locking Band and, if necessary, attach an optional drain pipe to the 10mm threaded drain to manage condensate effectively. **Important:** Always review local building regulations and follow manufacturer guidelines to ensure a safe and compliant installation.

This product is suitable for solid fuel and gas/oil appliances such as woodstoves, gas coal effect fires, oil boilers, and gas boilers.

It features a 304 stainless steel outer skin with a high-temperature black finish, a 316 grade stainless steel inner skin, both 0.4mm thick, and is insulated with compressed rockwool.

Yes, this product is HETAS Approved and CE marked, conforming to the relevant EN1856-1 designations.

Installation involves securing the cap with a supplied Locking Band, ensuring it's placed 50mm away from any combustible materials like wood or plasterboard.

A gap of 50mm should be maintained from the outer surface of the flue to any combustible material.

Yes, it comes with a 10mm threaded drain that allows for the attachment of a drain pipe to carry away excess condense from the flue system.

The durable design includes fully welded parts and high-quality materials such as 316 grade stainless steel for the inner skin and 304 stainless steel for the outer skin, along with high-density compressed rockwool insulation.

 

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