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Pack 706 - (175mm, PHCM/N/CNP/20-150-MR) (20-180-P706)

National Flues presents Pack 706, a premium installation kit tailored for flexible flue liner setups in masonry chimneys. Engineered for compatibility with MI-FLEX 316 and 904 systems, this kit offers an efficient, safe, and code-compliant solution for modern and traditional chimneys alike. If you’re looking to optimise your chimney installation, ensure you explore our optional accessories to further enhance performance.
The price you pay today £156.99
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

    All-inclusive installation kit for flexible flue liners
    Compatible with MI-FLEX 316 and 904 liners
    Designed for installation without chimney pot removal
    Suitable for wood, smokeless coal, gas and oil appliances
    Constructed with durable 316L stainless steel
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

Warranty & Returns +

All our products come with warranties and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

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We will match any price, like-for-like, on a retail basis. Give us a call if you find it cheaper and want to buy from us.

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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:

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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: [email protected]

Pack 706 from National Flues is an all-encompassing installation kit, ideal for setting up flexible flue liners within existing masonry chimneys. Perfectly crafted for use with MI-FLEX 316 and 904 flexible flue liners, this kit ensures compliance with Building Regulations Document J, which mandates a fully enclosed installation. Suitable for appliances up to 600°C (T600 designation), it supports various fuel types including wood (less than 20% moisture), smokeless coal, gas, and oil.

The kit includes a Pot Hanging Cowl with Mesh, a Nose Cone, an Increasing Adaptor to Black Pipe or Single Wall Flue, and a Chimney Notice Plate. Notably, this pack is designed for scenarios where you do not wish to remove the existing chimney pot. Regular sweeping and maintenance by a competent person are recommended to ensure the longevity and efficiency of your chimney system.

SKU: 20-180-P706

Technical Specifications
SKU20-180-P706
Dimensions150mm to 180mm MR flex adaptor
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
Fuel CompatibilityWood (less than 20% moisture), Smokeless Coal, Gas, Oil
Temperature RatingUp to 600u00b0C (T600 designation)
ApprovalsHETAS, CE
SystemMI-FLEX Accessories MF20
Components IncludedPot Hanging Cowl with Mesh, Nose Cone, Increasing Adaptor, Chimney Notice Plate
Before installation, ensure that the existing masonry chimney and flue liner system are in good condition and comply with current Building Regulations. Pack 706 is designed for installations where the chimney pot remains in place. Follow the manufacturer's guidelines carefully: securely fix the Pot Hanging Cowl with Mesh, attach the Nose Cone correctly, and use the Increasing Adaptor to transition safely to Black Pipe or Single Wall Flue. Regular maintenance, including routine chimney sweeps by a competent person, is recommended to ensure lasting performance. Optional accessory components are available should your installation require additional customisation.

Pack 706 is specifically designed for use with MI-FLEX 316 and 904 flexible flue liners, ensuring optimal compatibility and performance.

No, Pack 706 is designed for installations where you do not wish to remove the existing chimney pot.

The kit is suitable for use with wood (less than 20% moisture), smokeless coal, gas, and oil.

Pack 706 is suitable for appliances with temperatures up to 600°C (T600 designation).

Your chimney system should be inspected and swept at least once a year. For solid fuel appliances, it is recommended to sweep the chimney twice a year: at the end of the heating season and before the start of the next season.

No, you should not use chemical cleaners or mild steel tools to sweep stainless steel chimneys. Always opt for professional sweeping services.

Maintenance should be carried out by a competent person. For solid fuel applications, a list of HETAS registered sweeps can be found at www.hetas.co.uk.

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