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Pack 508 - (125mm, PHCMT/N/CNP/20-100-MR) (20-125-P508)

National Flues introduces Pack 508 — a comprehensive chimney flue installation kit optimised for MI-FLEX 316 and 904 flexible flue liners. This top-quality installation pack is engineered for effortless integration, perfect for retrofitting existing chimney systems. Read more...
Now only £84.99
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At a Glance

  • Comprehensive chimney flue installation kit
  • Designed for MI-FLEX 316 and 904 flexible flue liners
  • Eliminates the need to remove the existing chimney pot
  • Includes Terracotta Pot Hanging Cowl with Mesh, Nose Cone, and Increasing Adaptor
  • Complies with Building Regulations Document J and HETAS/CE standards

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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.

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Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The Pack 508 is a meticulously designed installation kit, perfect for scenarios where removing the existing chimney pot is not an option. The kit includes all essential components like a Terracotta Pot Hanging Cowl with Mesh, a Nose Cone, and an Increasing Adaptor to Black Pipe or Single Wall Flue. Ideal for use with MI-FLEX 316 and 904 flexible flue liners, this kit complies with Building Regulations Document J, necessitating that flexible flue liners are fully enclosed within a masonry chimney.

Suitable for appliances up to 600°C (T600 designation), it can be used with wood (under 20% moisture), smokeless coal, gas, and oil. Yearly maintenance, ideally bi-annual for solid fuels, ensures the longevity and safety of your chimney system.

SKU: 20-125-P508

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.

Technical Specifications
SKU20-125-P508
ItemInstallation Pack No 508 - Ø 100-Ø 125
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
FuelsWood (under 20% moisture), Oil, Gas, Smokeless coal
ApprovalsHETAS / CE
DimensionsTerracotta Pot Hanging Cowl & Nose Cone both at 125mm; Increasing Adaptor transitions from 100mm to 125mm
System CompatibilityMI-FLEX Accessories MF20, MI-FLEX 316 and 904 flexible flue liners
Temperature RatingSuitable for appliances up to 600°C (T600 designation)
Pack 508 is designed for ease of installation. Begin by verifying all components are present and inspect for any visible damage. The kit is ideal when an existing chimney pot is left in place. Follow the manufacturer’s guidelines to ensure the flexible flue liner is fully enclosed within your masonry chimney as required by Building Regulations Document J. Use appropriate tools and equipment, and always employ a registered HETAS sweep for maintenance. Note that regular bi-annual cleaning is recommended for solid fuel systems to maintain safe operation. Ensure your installation complies with all local regulations.

Yes, Pack 508 is specifically designed for MI-FLEX 316 and 904 flexible flue liners.

No, this pack is perfect when you do not want to remove the existing chimney pot.

Yes, all components are suitable for use with appliances up to 600°C (T600 designation).

This kit is suitable for wood (under 20% moisture), smokeless coal, gas, and oil.

The chimney system should be cleaned and inspected at least once a year, ideally twice a year if you are using solid fuels.

It is recommended to use a registered HETAS sweep and to avoid chemical cleaners or mild steel tools.

The Terracotta Pot Hanging Cowl and Nose Cone both have a diameter of 125mm, and the Increasing Adaptor transitions from 100mm to 125mm.

 

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