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IL - Firestop Spacer - Ø 150 (24-150-54)

National Flues presents the IL Firestop Spacer Ø 150, an essential component for twin wall insulated gas vent systems. Designed for naturally aspirated domestic gas-fired appliances, this firestop spacer delivers safety and reliability with its high-quality aluminium liner and durable zalutite outer casing. Read more...
Now only £16.99
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At a Glance

  • Trusted UK product with over 25 years of proven performance
  • Robust aluminium liner paired with a corrosion-resistant zalutite outer casing
  • Ensures a safe 50mm (2 Inches) clearance from combustible materials
  • Easy push fit and twist lock installation method
  • Suitable for both internal and external applications (not for condensing/positive pressure)
  • Meets CE and BS EN 9001:2008 safety standards

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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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.
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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

The IL Firestop Spacer Ø 150 is an essential component for any efficient and safe domestic gas venting system. A part of the twin wall insulated pre-fabricated domestic gas vent lineup, this spacer has been trusted in the UK for over two decades for its superior quality and reliability. The IL gas vent system is specifically designed for naturally aspirated domestic gas-fired appliances featuring a draught hood or diverter.

This unit operates under negative pressure, dry conditions and supports flue gas temperatures that do not exceed 250°C. Available in three convenient sizes - 100mm, 125mm, and 150mm - this product is crafted with an aluminium liner and a sturdy zalutite outer case, separated by a precise 6mm air gap. Ideal for both internal and external applications, it is imperative to note that it is not suitable for condensing and positive pressure applications.

Its design flexibility makes it an excellent choice for a variety of installations.

SKU: 24-150-54

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
SKU24-150-54
ItemFirestop Spacer - Ø 150
DesignationEN 1856-1 T250 N1 D Vm L11030 0(50)
SystemIL
Inner MaterialAluminium
Outer MaterialZalutite (coated steel for corrosion protection)
FuelsGas
ApprovalsCE, BS EN 9001:2008
Distance To Combustibles50mm (2 Inches)
Warranty5-year conditional warranty
Joint MethodPush fit and twist lock
Operating TemperatureUp to 250°C
ApplicationsInternal and External (not for condensing or positive pressure applications)
Install the IL Firestop Spacer at floor or ceiling penetration points to maintain the required clearance from combustible materials. Begin by ensuring that the mounting area is clean and free from debris. Fit the spacer in conjunction with the support plate to secure the 50mm gap, and utilise the push fit and twist lock mechanism for an easy and secure installation. Always adhere to the manufacturer’s guidelines and local building regulations. Note: This spacer is not suitable for condensing or positive pressure applications.

The IL Firestop Spacer is available in three diameters: 100mm, 125mm, and 150mm.

Yes, the IL Firestop Spacer is suitable for both internal and external applications.

No, the IL Firestop Spacer is not intended for condensing and positive pressure applications.

The IL Firestop Spacer is designed for naturally aspirated domestic gas-fired appliances with a draught hood or diverter.

It features an aluminium liner and a zalutite outer case, separated by a 6mm air gap.

It is designed to handle flue gas temperatures up to 250°C.

A firestop spacer maintains the required clearance from combustible materials, ensuring safety at floor or ceiling penetration points.

 

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