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Pot Hanging Cowl 1mm (Natural) - Ø 150 (20-150-PHCM1)

National Flues presents the Pot Hanging Cowl 1mm (Natural) - Ø 150, a robust and reliable accessory ideally suited for MI-FLEX 316 and 904 flexible flue liners. This premium pot hanging cowl is engineered with high-grade 316L stainless steel and a natural finish, making it the perfect choice for any masonry chimney installation. Read more...
Pot Hanging Cowl 1mm (Natural) - Ø 150
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Now only £67.99
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At a Glance

  • Designed specifically for MI-FLEX 316 and 904 flexible flue liners
  • Complies with Building Regulations Document J
  • Robust 316L stainless steel construction with a natural finish
  • Withstands high temperatures up to 600°C, protecting against water ingress, vermin, and birds

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: sales@nationalflues.com

The Pot Hanging Cowl 1mm (Natural) - Ø 150 is an essential component for creating a fully efficient and reliable chimney system. Perfectly designed to work with MI-FLEX 316 and 904 flexible flue liners, this pot hanging cowl ensures a robust and compliant chimney installation. According to Building Regulations Document J, a flexible flue liner must be installed inside a masonry chimney, making our product an ideal choice.

Its stunning natural finish complements any masonry chimney, ensuring durability and functionality in temperatures up to 600°C (T600 designation). Suitable for wood with moisture content below 20%, smokeless coal, gas, and oil appliances, this cowl provides excellent protection against water, vermin, and bird ingress, supporting the vertical weight of the flue liner from the chimney pot. Make sure your chimney structure is sound and the pots are free from cracking, with appropriate flaunching.

Regular maintenance by a competent person is essential, particularly for solid fuel systems, where cleaning should occur twice yearly to prevent blockages and deposits. We recommend using HETAS registered sweeps for best results.

SKU: 20-150-PHCM1

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. 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
Material316L Stainless Steel
SizeØ150
Wall Thickness1mm
Max Temperature600°C (T600)
CompatibilityMI-FLEX 316 & 904 flexible flue liners
Fuel TypesWood (max 20% moisture), Oil, Gas, Smokeless Coal
ApprovalsHETAS / CE
ComplianceBuilding Regulations Document J
Before installation, ensure that the masonry chimney structure is sound, the chimney pot is free from cracks, and appropriate flaunching is in place at the top of the stack. This cowl is designed for use exclusively with masonry chimneys. Be sure to install a proper flexible flue liner inside the chimney in accordance with Building Regulations Document J. For solid fuel systems, routine maintenance such as bi-annual sweeping using HETAS registered sweeps is recommended to prevent blockages and buildup of deposits. Avoid the use of chemical cleaners or abrasive tools during maintenance to preserve the integrity of the cowl and flue liner.

A pot hanging cowl is used to support the vertical weight of a flexible flue liner at the chimney pot, while preventing water, vermin, and birds from entering the flue system.

It is compatible with wood (less than 20% moisture content), smokeless coal, gas, and oil appliances, and it's suitable for use up to temperatures of 600°C.

Regular maintenance includes sweeping at least once a year, ideally twice for solid fuel systems. Use HETAS registered sweeps and avoid chemical cleaners or mild steel tools.

No, it must be installed inside a masonry chimney. Non-masonry enclosures like timber or plasterboard are not acceptable under Building Regulations Document J.

Ensure your chimney structure is sound, chimney pots are crack-free, and appropriate flaunching is applied at the top of the stack.

Preventing water ingress is crucial to avoid water running back to the appliance, which could cause damage and reduce efficiency.

Solid fuel systems should be swept at least twice a year—once at the end of the heating season to remove deposits, and once at the start of the next to check for blockages.

 

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