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Top Insert Sleeve with Rain Cap - Ø 180

National Flues presents the Top Insert Sleeve with Rain Cap - Ø 180, an essential chimney accessory designed for optimal protection and ease of installation. Ideal for ensuring dry, pest-free performance, this product complements MI-FLEX 316 and 904 flexible liners and meets rigorous standards such ... More...
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At a Glance

  • - 316L Stainless Steel construction for durability
  • - Integrated rain cap to prevent water ingress
  • - Seamless integrated protection sleeve for easy installation
  • - Compatible with MI-FLEX 316 and 904 flexible liners
  • - Meets BSEN 1856-2 T600 specifications and HETAS/CE approved
  • - Suitable for wood (<20% moisture), smokeless coal, gas, and oil
Now only £40.99
Including VAT Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

 

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We Won't Be Beaten On Price

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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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Top Insert Sleeve with Rain Cap - Ø 180 is part of our MF20 MI-FLEX accessories, meticulously designed to complement MI-FLEX 316 and 904 flexible flue liners. This product plays a crucial role in forming a comprehensive chimney system, ensuring robust performance for your multi-fuel appliances. According to Building Regulations Document J, a flexible flue liner must be fully enclosed inside a masonry chimney.

This unit is capable of handling temperatures up to 600°C (T600 designation) and is suitable for wood with less than 20% moisture, smokeless coal, gas, and oil. The integrated rain cap guards against water ingress and vermin, thereby enhancing the longevity and safety of your flue system. Additionally, it offers an integrated protection sleeve that fits seamlessly inside the flexible liner, simplifying the clamping process.

SKU: 20-180-PSRC

Technical Specifications
Model/SystemMI-FLEX Accessories MF20
DesignationBSEN 1856-2 T600 N1 W V2 L50012 G
Material316L Stainless Steel
Colour FinishNatural / Stainless Steel
Suitable FuelsWood (<20% moisture), Oil, Gas, Smokeless coal
Temperature RatingUp to 600u00b0C
CertificationsHETAS, CE
Before installation, confirm that your masonry chimney is sound and ready for a fully enclosed flexible flue liner as required by Building Regulations. First, ensure the flue liner is properly seated inside the chimney. Next, insert the Top Insert Sleeve with Rain Cap - Ø 180, making sure the integrated protection sleeve aligns correctly within the flexible liner to facilitate an effective clamping process. Always check that all chimney pots are free from cracks and that the flaunching at the top is correctly executed. Use only recommended tools for any adjustments, and avoid chemical cleaners or mild steel tools which can compromise the system’s integrity. For the safest outcome, consider professional installation if you are unsure about any of these steps.

It protects your chimney from rain and pests while providing an integrated protection sleeve that simplifies the clamping process inside the flexible liner.

Yes, it's suitable for wood with less than 20% moisture, smokeless coal, gas, and oil, handling temperatures up to 600°C.

Yes, Building Regulations require that a flexible flue liner be installed completely inside a masonry chimney.

It's recommended to sweep chimneys serving solid fuel appliances at least twice a year—at the end and the start of the heating season.

No, chemical cleaners and mild steel tools should never be used. Always use appropriate tools and methods recommended by professionals.

Ensure the chimney structure is sound, all chimney pots are in good condition without cracks, and proper flaunching is made at the top of the stack.

Yes, National Flues offers reliable delivery services nationwide, catering to both retail and trade customers.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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.

Compatible and other products that may be of interest...

Read our buyers guide for this Top Insert Sleeve with Rain Cap - Ø 180

National Flues Ltd Verdict

The Top Insert Sleeve with Rain Cap - Ø 180 is a fantastic solution for ensuring your chimney remains dry and pest-free. At National Flues, we are rarely beaten on price and offer reliable delivery across the UK, catering to both retail and trade customers.

The Top Insert Sleeve with Rain Cap is designed to protect chimneys from rain and pests while ensuring easy installation and secure fitting of flexible flue liners.

National Flues is a leading supplier of fireplaces and flues, offering competitive prices and reliable delivery across the UK. We serve both retail and trade customers, providing secure online payments for hassle-free purchasing.

 

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Secure your Top Insert Sleeve with Rain Cap - Ø 180 now and ensure your chimney's longevity.

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