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Pack 708 - (175mm, PHCMT/N/CNP/20-150-MR) (20-180-P708)

Discover the ultimate Pack 708 installation kit from National Flues—a premium solution designed specifically for 175mm flue liners. Engineered for MI-FLEX 316L and 904 systems, this comprehensive kit, featuring a terracotta pot hanging cowl, nose cone, and transition adaptor, provides the perfect balance of safety, performance, and aesthetics. Read more...
Now only £124.99
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At a Glance

  • Complete installation kit for 175mm flue liners
  • Includes terracotta pot hanging cowl with mesh, nose cone, increasing adaptor (150mm SW to 180mm Flex) and chimney notice plate
  • Engineered for MI-FLEX 316L and 904 systems
  • Complies with Building Regulations Document J for safe, robust installations
  • Suitable for wood (with less than 20% moisture), oil, gas and smokeless coal

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

Introducing Pack 708, a premium installation kit designed specifically for 175mm flue liners. This comprehensive package includes a terracotta pot hanging cowl with mesh, a nose cone, an increasing adaptor to connect your black pipe or single wall flue, and a chimney notice plate. Perfectly engineered for use with MI-FLEX 316 and 904 flexible flue liners, these components come together to create a full chimney system compliant with Building Regulations Document J.

Ideal for use on appliances up to 600°C, this kit is suitable for wood (less than 20% moisture), smokeless coal, gas, and oil. Ensure your chimney system is designed for easy sweeping and maintenance, and remember that regular servicing by a competent person is essential. For solid fuel applications, we recommend HETAS registered sweeps for optimal results.

SKU: 20-180-P708

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
Flue Diameter175mm
Adaptor Dimensions150mm to 180mm transition
Material316L
Colour FinishTerracotta
Temperature RatingUp to 600°C
Fuel CompatibilityWood (<20% moisture), Oil, Gas, Smokeless Coal
ApprovalsHETAS, CE
System CompatibilityMI-FLEX 316 & 904
Pack 708 is designed for retrofitting without the need to remove your existing chimney pot. Carefully follow the provided installation manual to ensure that the terracotta pot hanging cowl, nose cone, adaptor, and notice plate are correctly positioned. Always verify that the flexible flue liner is fully enclosed within a masonry chimney, as required by Building Regulations Document J. For solid fuel systems, scheduling regular inspections and sweeping by a HETAS registered professional is essential to maintain safety and efficiency. Exercise caution during installation and refer to our detailed guidelines for any optional accessories that may further complement your system.

Pack 708 includes a terracotta pot hanging cowl with mesh (Ø 180mm), a nose cone (Ø 180mm), an increasing adaptor for black pipe or single wall flue (150mm SW to 180mm Flex), and a chimney notice plate.

Yes, the components in Pack 708 are suitable for use with wood (less than 20% moisture), smokeless coal, gas, and oil.

No, Pack 708 is designed for scenarios where you do not want to remove your existing chimney pot.

Yes, all parts are specifically designed to work seamlessly with MI-FLEX 316 and 904 flexible flue liners.

Regular cleaning and inspection are essential. For solid fuel applications, sweep your chimney at least twice a year. Avoid chemical cleaners and mild steel tools; always use a HETAS registered sweep.

The components can withstand temperatures up to 600°C (T600 designation).

No, Building Regulations Document J mandates that flexible flue liners must be completely enclosed within a masonry chimney.

 

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