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Gather Hood Medium (300x300) - Ø 180 (20-180-GHM)

National Flues presents the Medium Gather Hood (300x300) - Ø 180, an essential accessory for flexible flue liner installations. Designed for MI-FLEX systems, this gather hood not only meets BSEN standards but also optimises gas flow and chimney performance. Read more...
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At a Glance

  • Designed for MI-FLEX 316 and 904 flue liners
  • Crafted from premium 316L stainless steel
  • Withstands temperatures up to 600°C (T600 rating)
  • Secure attachment with built-in metal flaps
  • Fully compliant with Building Regulations Document J

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Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The Medium Gather Hood (300x300) - Ø 180 is an essential component for any fireplace setup requiring a flexible flue liner. Specifically designed for MI-FLEX 316 and 904 flue liners, this gather hood enhances the efficiency of your chimney system by creating a larger area for gas flow. Building Regulations Document J mandates that a flexible flue liner must be enclosed within a masonry chimney, and our gather hood fits seamlessly within these regulations.

Suitable for use with wood (less than 20% moisture), smokeless coal, gas, and oil, it can handle temperatures up to 600°C (T600 designation). The gather hood includes an adaptor for easy connection to the flue liner and comes with metal flaps for secure attachment to the chimney brickwork. Maintenance is straightforward, requiring yearly inspections and bi-annual sweeping for solid fuel appliances.

For peace of mind, ensure a competent professional conducts these tasks.

SKU: 20-180-GHM

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
SKU20-180-GHM
Dimensions300x300 mm
DiameterØ 180 mm
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
Temperature Rating600°C (T600)
Compatible Flue LinersMI-FLEX 316 & 904
FuelsWood (less than 20% moisture), Smokeless Coal, Gas, Oil
ApprovalsHETAS / CE
Design StandardBSEN 1856-2 T600 N1 W V2 L50012 G
Installation MethodMasonry chimney with metal flaps
Ensure the flexible flue liner is correctly installed within a properly constructed masonry chimney as stipulated by Building Regulations Document J. Attach the Gather Hood firmly using the provided adaptor and metal flaps to secure it to the chimney brickwork. For a gas-tight seal, use fire cement, ceramic rope, high-temperature tape, or sealant as required. It is essential to inspect your chimney annually and conduct bi-annual sweeping for solid fuel appliances. Always consult a qualified professional to perform installation and maintenance, ensuring both safety and regulatory compliance.

A gather hood is designed to create a larger area for gas flow above an open fireplace, improving the efficiency of flue gas escape and ensuring proper chimney ventilation.

Yes, the Medium Gather Hood is specially designed for use with MI-FLEX 316 and 904 flexible flue liners.

This gather hood is suitable for use with wood (less than 20% moisture), smokeless coal, gas, and oil, and can withstand temperatures up to 600°C.

The gather hood comes with metal flaps that can be folded at right angles and screwed into the brickwork at the top of the chimney chamber.

For solid fuel appliances, it's recommended to sweep the chimney at least twice a year and conduct a yearly inspection and maintenance.

No, Building Regulations Document J requires flexible flue liners to be completely enclosed within a masonry chimney. Non-masonry enclosures like timber or plasterboard boxing are not acceptable.

Ensure that the connection to the flexible flue liner is made within the confines of the existing masonry chimney. The use of fire cement, ceramic rope, high-temperature tape, or sealant is advisable to create a gas-tight seal.

 

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