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London Gather 9 x 12 inch - Ø 125 (61-125-LG12)

Discover the London Gather Hood 9 x 12 inch - Ø 125 from National Flues, an ideal solution for installations requiring a seamless connection between an open fireplace and a flexible flue liner. Designed for optimal performance with Mi-Flex 316L and 904 systems, this gather hood is perfect for wood, coal, gas, and oil applications. Enhance your chimney’s safety and efficiency with this durable, high-temperature resistant stainless steel component – a must-have for modern and traditional homes ali Read more...
The price you pay today £105.99
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At a Glance

    Designed for Mi-Flex 316L & 904 flue liners
    9 x 12 inch opening with Ø 125 mm compatibility
    Suitable for wood, smokeless coal, gas, and oil appliances
    Withstands temperatures up to 600°C (T600 designation)
    Ensures a secure, gas-tight connection at the base of the chimney
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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Have Questions?
Phone: 01670 206999
Email: [email protected]

The London Gather Hood 9 x 12 inch - Ø 125 is an essential component for anyone installing a flexible flue liner in their chimney system. Crafted specifically for Mi-Flex 316 and 904 flue liners, this gather hood transitions the fireplace opening to the flexible flue liner, ensuring a seamless connection. General applications include use with wood (under 20% moisture content), smokeless coal, gas, and oil appliances, capable of withstanding temperatures up to 600°C (T600 designation).

The gather hood attaches to the base of the chimney, and appropriate provisions must be made to secure bottom fixings to ensure a gas-tight seal using fire cement, ceramic rope/tape, or high-temperature sealant. Regular maintenance through sweeping by a competent person is crucial for maintaining chimney efficiency and safety, especially for solid fuel appliances, where sweeping is recommended twice annually.

SKU: 61-125-LG12

Technical Specifications
Dimensions9 x 12 inch opening, u00d8 125 mm flue liner compatibility
Flue Liner CompatibilityMi-Flex 316L and 904
MaterialNatural / Stainless Steel
Temperature RatingUp to 600u00b0C (T600 designation)
ApplicationsWood (under 20% moisture), smokeless coal, gas, oil appliances
InstallationAttaches at the base of the chimney with secure fixings using fire cement, ceramic rope/tape, or high-temperature sealant
Installation of the London Gather Hood should be carried out with careful attention to detail. Firstly, ensure that your chimney base is properly prepared and stable. The gather hood is fitted at the bottom of the chimney to transition your open fireplace to the flexible flue liner. Use the provided adaptor to attach the gather hood securely to the Mi-Flex liner. To achieve a gas-tight seal, it is essential to use fire cement, ceramic rope/tape, or a high-temperature sealant, following the recommended installation guidelines. Additionally, observe all relevant building regulations, particularly Document J, which highlights the necessity of enclosing the flexible flue liner within a masonry structure. Remember, proper maintenance of the chimney system, including regular sweeping by a competent person, is crucial for both efficiency and safety.

The London Gather Hood is compatible with wood (under 20% moisture content), smokeless coal, gas, and oil appliances.

The gather hood is suitable for applications up to 600°C (T600 designation).

The gather hood transitions the fireplace opening to the flexible flue liner, allowing gasses to flow efficiently up the chimney.

Secure the gather using fire cement, ceramic rope/tape, or high-temperature sealant to ensure a gas-tight seal.

Yes, Building Regulations Document J specifies that flexible flue liners must be installed completely enclosed within a masonry chimney.

It is recommended to sweep the chimney system at least once a year, and for solid fuel appliances, twice annually – at the end of the heating season and before the start of the next.

Chemical cleaners and mild steel tools should not be used to clean stainless steel chimneys.

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