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Pack 804 - (200mm, P/C/PS/N/CNP/20-175-MR) (20-200-P804)

National Flues presents Pack 804, a top-tier installation kit specifically engineered for MI-FLEX flue liners and chimney systems. This comprehensive accessory package is ideal for customers seeking reliability and efficiency in their chimney installations. Read more...
Now only £120.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.
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At a Glance

  • Complete MI-FLEX installation kit
  • Components include 200mm Top Plate, Top Clamp, Nose Cone, and 180-200mm MR Flex Adaptor
  • Rated for temperatures up to 600°C (T600 designation)
  • Constructed from premium 316L stainless steel with Natural finish
  • Suitable for wood (low moisture), oil, gas, and smokeless coal appliances
  • Fully compliant with Building Regulations for masonry chimney installations
  • Approved by HETAS and CE

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

Pack 804 is a meticulously crafted installation kit ideal for flexible flue liners, designed to comply with all Building Regulations. Consisting of a 200mm Top Plate, Top Clamp, and Nose Cone along with an 180mm to 200mm MR Flex Adaptor, this package has everything you need for installing a fully functional chimney system. Perfectly suited for appliances operating up to 600°C (T600 designation), the kit is suitable for burning wood with less than 20% moisture, smokeless coal, gas, and oil.

It is essential to note that all components must be installed inside a masonry chimney as non-masonry enclosures are not permitted by law.

SKU: 20-200-P804

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.

Technical Specifications
SKU20-200-P804
Product NamePack 804 - (200mm, P/C/PS/N/CNP/20-175-MR)
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
Top Plate Size200mm
ComponentsTop Plate, Top Clamp, Nose Cone, 180mm to 200mm MR Flex Adaptor
Temperature RatingUp to 600°C (T600 designation)
Suitable FuelsWood (less than 20% moisture), Oil, Gas, Smokeless coal
ApprovalsHETAS, CE
SystemMI-FLEX Accessories MF20
Installation RequirementMasonry chimney enclosure only
Pack 804 is designed for straightforward chimney installations. Always ensure that the installation is performed inside a masonry chimney, as non-masonry enclosures do not comply with Building Regulations Document J. Prior to installation, verify that all components are present and intact. Begin by positioning the 200mm Top Plate in line with the chimney’s interior, followed by securing the Top Clamp and correctly fitting the Nose Cone. The 180mm to 200mm MR Flex Adaptor must be measured accurately and aligned with the liner. It is essential to follow all manufacturer guidelines to maintain the integrity of the installation. Additionally, while optional accessories like a chimney cowl or terminal may enhance weather protection and bird prevention, these must be sourced separately to further optimise your flue system’s performance.

Pack 804 is specifically designed for use with MI-FLEX 316 and 904 flexible flue liners.

Yes, all components in Pack 804 can handle temperatures up to 600°C (T600 designation).

Yes, the kit is suitable for wood (less than 20% moisture), smokeless coal, gas, and oil appliances.

For added protection against weather and birds, it is advisable to install a cowl or terminal on your chimney.

Yes, Building Regulations Document J requires the components to be fully enclosed inside a masonry chimney.

It is recommended to sweep and inspect the chimney at least twice a year, especially for solid fuel applications.

No, under no circumstances should chemical cleaners or mild steel tools be used to clean stainless steel chimneys.

 

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