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Gather Hood Large (300x400) - Ø 200 (20-200-GHL)

National Flues presents the high-quality Gather Hood Large (300x400) - Ø 200, a leading accessory for flexible flue liner installations. This premium chimney accessory is designed to provide efficient gas management and exceptional durability while supporting multiple fuel types including wood, oil, gas, and smokeless coal. Read more...
Gather Hood Large (300x400) - Ø 200
IN STOCK
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Now only £143.99
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At a Glance

  • Designed for flexible flue liner installations
  • Complies with Building Regulations Document J
  • Adaptor-equipped for secure attachment
  • Constructed from durable 316L stainless steel
  • Handles temperatures up to 600°C
  • Suitable for wood, oil, gas, and smokeless coal

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Phone: 01670 206999
Email: sales@nationalflues.com

The Gather Hood Large (300x400) - Ø 200 from our MI-FLEX family of accessories is the ideal installation component for use with MI-FLEX 316 and 904 flexible flue liners. Designed to create a comprehensive chimney system, this gather hood is perfect for handling gases from open fireplaces, ensuring they flow efficiently up through the chimney liner. It is crucially fitted with an adaptor to facilitate attachment to the flexible flue liner securely.Compliance with Building Regulations Document J is assured, necessitating that flexible flue liners are fully enclosed within a masonry chimney – a non-masonry enclosure, like timber or plasterboard boxing, is strictly prohibited.

Suitable for systems reaching up to 600°C (T600 designation), the gather hood is versatile, supporting fuels such as wood with less than 20% moisture, smokeless coal, gas, and oil.Installed at the chimney base and extending up to the chimney chamber's top, the metal flaps of the gather hood are designed to be folded at right angles and screwed into the brickwork, ensuring stability and safety. Additionally, bottom fixings help transition from the connecting flue system to the flexible flue liner, establishing a gas-tight seal and requiring secure fittings with fire cement, ceramic rope, or high-temperature sealant.

SKU: 20-200-GHL

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.

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Technical Specifications
SKU20-200-GHL
ItemGather Hood Large (300x400) - Ø 200
DesignationBSEN 1856-2 T600 N1 W V2 L50012 G
SystemMI-FLEX Accessories MF20
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
Fuel CompatibilityWood (with <20% moisture), Smokeless Coal, Gas, Oil
Temperature RatingUp to 600°C (T600)
ApprovalsHETAS / CE
Install the Gather Hood Large at the base of your chimney system, ensuring it is positioned to allow for optimal gas flow. Begin by securely attaching the flexible flue liner to the gather hood via the integrated adaptor. Fold the metal flaps at right angles and fasten them firmly into the brickwork using appropriate fixings. For a gas-tight seal at the bottom interface, apply fire cement, ceramic rope, or a high-temperature sealant as recommended. It is crucial to adhere to Building Regulations Document J, ensuring that the flue liner is fully enclosed within a masonry chimney. Avoid the use of non-masonry enclosures like timber or plasterboard. Regular maintenance and inspections are advised to ensure continued performance and safety.

The primary function is to facilitate the efficient flow of gases from an open fireplace into a chimney liner. It helps create a larger surface area for gas escape, ensuring proper ventilation and safety.

Yes, the gather hood is suitable for wood with less than 20% moisture, smokeless coal, gas, and oil heaters, handling temperatures up to 600°C.

Yes, Building Regulations Document J requires that flexible flue liners must be fully enclosed within a masonry chimney. Non-masonry enclosures like timber or plasterboard are not permissible.

The gather hood should be attached to the chimney base and top of the chimney chamber with metal flaps folded at right angles. These flaps must be screwed into the brickwork to ensure stability.

Yes, regular maintenance and sweeping are necessary, especially for solid fuel applications. Annual inspections and cleanings are recommended, with sweeping at least twice yearly for solid fuel appliances.

No, chemical cleaners or mild steel tools should not be used on stainless steel chimneys. Only appropriate cleaning methods should be employed to maintain the system's integrity and safety.

For a gas-tight seal, fire cement, ceramic rope, tape, or high-temperature sealants are recommended for securing the bottom fixings.

 

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