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300mm (12 inch) Flue Liner 316L for Gas and Oil (316L Grade)

National Flues proudly presents the 300mm (12 inch) Flue Liner 316L, a premium flexible flue liner designed specifically for gas and oil appliances. This high-quality 316L grade stainless steel liner not only meets but exceeds BS EN 1856:2 standards, offering durability, safety, and exceptional perf... More...
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At a Glance

  • - Made from premium 316L grade stainless steel
  • - 0.10mm single-skin flexible construction
  • - Designed specifically for gas and oil appliances
  • - Features robust TRIPLELOCK sealed joints with five convolutions
  • - Kitemarked to BS 715 and CE Approved to BS EN 1856:2
Now only £87.99
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The 300mm (12 inch) Flue Liner 316L is a premium single-skin flexible flue liner, perfect for relining masonry chimneys. Made from high-quality 316L grade stainless steel with a thickness of 0.10mm, it offers exceptional durability. This flue liner is specifically designed for gas-fired appliances and oils up to 28 seconds and can handle temperatures up to 260°C.

Its robust construction features five convolutions between each seam, enhanced with a TRIPLELOCK seal for maximum reliability. Fully Kitemarked to BS 715 and approved to BS EN 1856:2 standards, it offers peace of mind for safety and performance. Installation is a breeze with our detailed instructions.

With proper maintenance, including sweeping at least once a year, this flue liner ensures optimal performance for years to come.

SKU: 4Z-300-1

Technical Specifications
SKU4Z-300-1
Material316L Grade Stainless Steel
Thickness0.10mm
Diameter Range80mm to 300mm
Joint MethodTriplelock
DesignationsEN1856-2 T250 N1 D V3 L50010 G
KitemarkedYes
CE ApprovedYes
Warranty10 Year Conditional Warranty
Temperature RatingUp to 260u00b0C
Fuel TypeGas and Oil
CPR2797-CPR-603464
Before installation, ensure that your chimney has been properly swept and inspected for any blockages or damages. Begin by positioning the liner’s top in alignment with the chimney opening. Using a nose cone, gently feed the liner down, ensuring that it negotiates any bends without creasing. Secure the top of the liner with a clamp plate and seal the bottom to the register plate, flue pipe or gas collector, ensuring that at least 75mm of the liner projects above the clamp plate. It is critical to follow the provided detailed instructions during installation, and if in doubt, consult a professional installer to ensure safety and correct setup.

The flue liner is made of 316L grade stainless steel, is 0.10mm thick, and features five convolutions between each seam with a TRIPLELOCK seal. It can handle temperatures up to 260°C.

The 300mm Flue Liner 316L is specifically designed for gas-fired appliances and oils up to 28 seconds. Always check the fire manufacturer's specifications.

Ensure the chimney is swept and in good condition. Install from the top using a nose cone and string, feed the liner down the chimney, secure the top with a clamp plate, and seal the bottom to a register plate, flue pipe, or gas collector.

Yes, the 300mm Flue Liner 316L is Kitemarked to BS 715 and approved to BS EN 1856:2 standards.

Regular maintenance should include sweeping the chimney serving gas and oil appliances at least once a year or more frequently as necessary.

Yes, if necessary, you can cut the flue liner to the required length. Ensure that 75mm of the liner projects above the clamp plate for proper terminal fitting.

If the chimney pot is in poor condition and you are not using a suspended cowl, you should remove the pot from the stack before installation.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. If you need faster stove or fireplace delivery please give us a call. We can often 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. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Price Match Guarantee +

We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.

Read our buyers guide for this 300mm (12 inch) Flue Liner 316L for Gas and Oil (316L Grade)

National Flues Ltd Verdict

At National Flues, we highly recommend the 300mm (12 inch) Flue Liner 316L for its top-notch durability and reliability. Our consistent nationwide delivery service and unbeatable prices make it a top choice for both retail and trade customers.

This flue liner is designed for relining masonry chimneys for appliances using gas and oil fuels.

National Flues is a leading supplier of fireplaces and flues across the UK, known for unbeatable prices and reliable nationwide delivery. We cater to both retail and trade customers with secure online payment options and dedicated trade accounts.

 

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Secure your 300mm Flue Liner 316L now for unmatched performance and safety.

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