Top Insert Sleeve - Ø 180 (20-180-PS)
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Fast deliveryMonday, November 17th*
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Best PriceCall us to beat any price you found online.
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At a Glance
- Secure and robust design engineered for MI-FLEX 316 and 904 flue liners
- Withstands temperatures up to 600°C for long-lasting performance
- Constructed from high-grade 316L stainless steel ensuring durability
- Fully compliant with Building Regulations Document J for safe installations
- Designed to work seamlessly with the Top Plate and Top Clamp
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:
- Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com
- Details
- Specs
- Install/Packs
- FAQs
The Top Insert Sleeve Ø 180 is a crucial accessory in the MI-FLEX 316 and 904 flexible flue liner range. Designed for flawless compatibility, this sleeve ensures a secure fit at the top of your chimney installation. Engineered to withstand temperatures up to 600°C, it is suitable for use with various fuels, including wood (with less than 20% moisture), smokeless coal, gas, and oil.
Compliance with Building Regulations Document J is vital, as it mandates that flexible flue liners must be fully enclosed within a masonry chimney, ruling out non-masonry enclosures like timber or plasterboard. The Top Insert Sleeve works in tandem with the Top Plate and Top Clamp, ensuring the flue liner's weight is effectively supported without compromising its integrity. Regular maintenance is essential for longevity and safety, with an annual inspection recommended, and bi-annual sweeping for solid fuel appliances to remove deposits and blockages.
Let’s keep your chimney system reliable and efficient with this top-tier product from National Flues.
SKU: 20-180-PS
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.
This is us — real advice over the phone, or at the counter, and real stock in our warehouse.
| Technical Specifications | |
|---|---|
| Product Name | Top Insert Sleeve - Ø 180 |
| Material | 316L Stainless Steel |
| Max Temperature | 600°C |
| Fuel Compatibility | Wood (<20% moisture), Oil, Gas, Smokeless Coal |
| Compliance | HETAS / CE; Building Regulations Document J |
| System | MI-FLEX 316 and 904 flexible flue liners |
| Installation | Use in conjunction with Top Plate and Top Clamp |
| Stock | IN STOCK (40) |
| Price | £11.69 (Our Price: £9.74) |