We use cookies to ensure a smooth, secure, and ever-improving experience on our website. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and let us now if you need any help!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
IL - Firestop Spacer - Ø 125 (24-125-54)
National Flues presents the IL Firestop Spacer - Ø 125, a vital accessory for ensuring safe and efficient domestic gas vent installations. This high-performance firestop spacer is an indispensable component for fireplaces, flues, and gas-fired appliances in the UK. Engineered to stringent safety standards, this product is the go-to choice for retaining the necessary clearance between gas vents and combustible surfaces.
Hover to Zoom / Click for Gallery
In Stock
£15.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Engineered for domestic gas vent systems
Suitable for both internal and external applications
Maintains essential 50mm clearance from combustible materials with optional support plates
Withstands flue gas temperatures up to 250°C
Durable aluminium liner combined with corrosion-protected zalutite outer case
Over 25 years of proven reliability in the UK market
×
Email Product
Enter your email address to send the product details:
Please Note: All dimensions refer to the internal diameter of flues.
If unsure, please call 01670 206999 to ensure you choose the correct products.
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.
The IL Firestop Spacer - Ø 125mm is an essential component in the realm of domestic gas ventilation systems. Over the last 25 years, this twin wall insulated pre-fabricated gas vent system has earned a stellar reputation for its quality and reliability. Engineered specifically for naturally aspirated domestic gas-fired appliances equipped with a draught hood or diverter, this spacer ensures the chimney operates under negative pressure and dry conditions.
Designed to handle flue gas temperatures up to 250°C, this product boasts an aluminium liner and a zalutite outer case, separated by an efficient 6mm air gap. Available in three distinct sizes - 100mm, 125mm, and 150mm - it is suitable for both internal and external applications, though not for condensing and positive pressure systems. It seamlessly integrates with support plates to maintain the appropriate clearance to combustible materials, making it a versatile and reliable choice for any gas vent system.
SKU: 24-125-54
Technical Specifications
Manufacturer
IL
Model
Firestop Spacer - u00d8 125
Diameter
125mm
Inner Material
Aluminium
Outer Material
Zalutite (zinc-aluminium coated steel)
Temperature Rating
Up to 250u00b0C
Approvals
CE, BS EN 9001:2008
Fuel
Gas
Application
Internal & External (not for condensing/positive pressure systems)
Warranty
5 year conditional warranty
Joint Method
Push fit and twist lock
Clearance To Combustibles
50mm (2 Inches)
System
IL domestic gas vent
Sizes Available
100mm, 125mm, 150mm
Before installation, ensure compatibility with your specific gas vent system. Secure the spacer using the recommended support plate to maintain a mandatory 50mm clearance from combustible materials. Follow the push fit and twist lock method for a stable, secure connection. Note that this product is not suitable for condensing or positive pressure systems. Always refer to local building regulations and manufacturer guidelines during installation.
The IL Firestop Spacer is used to maintain the necessary clearance between the gas vent system and combustible materials, ensuring safe and efficient operation.
Yes, the IL Firestop Spacer is designed to be used in both internal and external applications, providing flexibility in installation.
No, the IL Firestop Spacer is not suitable for condensing and positive pressure applications.
The IL Firestop Spacer consists of an aluminium liner and a zalutite outer case, separated by a 6mm air gap for efficient insulation.
This spacer is available in three diameter sizes: 100mm, 125mm, and 150mm, making it adaptable to various needs and configurations.
The IL gas vent system has been used in the UK for over 25 years, proving its quality and reliability over time.
The IL Firestop Spacer can handle flue gas temperatures of up to 250°C, making it suitable for a range of domestic gas-fired appliances.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.
Read our review in our IL - Firestop Spacer - Ø 125 buyers guide
Your Comprehensive Guide to the IL Firestop Spacer - Ø 125
When installing a domestic gas vent system, every component plays a crucial role in ensuring the overall safety and efficiency of your setup. The IL Firestop Spacer - Ø 125, available from National Flues, is designed to provide a reliable, durable solution that meets the rigorous standards required in modern installations.
Overview of the Product
The IL Firestop Spacer - Ø 125 is engineered specifically for use with naturally aspirated gas vent systems. Its primary purpose is to maintain the essential clearance between the flue and any combustible materials. This spacer not only safeguards your installation but also enhances the longevity of your gas vent system. With over 25 years of proven performance in the UK, this product offers a blend of advanced engineering and robust durability.
Key Features and Their Benefits
The design of the IL Firestop Spacer emphasises both safety and efficiency. Some of the standout features include:
• High Temperature Resistance: Capable of withstanding flue gas temperatures up to 250°C, this spacer is ideal for gas-fired appliances.
• Robust Materials: With an aluminium liner and a zalutite outer case, it provides excellent durability and resistance to corrosion—perfect for both indoor and outdoor applications.
• Maintained Clearance: Designed to work seamlessly with support plates, the spacer ensures that a safe 50mm distance is maintained between the vent system and combustibles, which is critical for safe gas ventilation.
Installation Insights
For the best performance, it is important that the IL Firestop Spacer is installed correctly. Here are some guidelines:
• Preparation: Always check that the spacer is compatible with your existing gas vent system and meets the specifications needed for your installation type.
• Securing the Product: Use the recommended support plate to firmly secure the spacer. This helps maintain the necessary gap between the flue and nearby combustible materials.
• Method: The push fit and twist lock design ensures a secure fit during installation, reducing the risk of accidents or misalignment.
• Safety Compliance: Ensure that you adhere to local building regulations and the manufacturer’s installation guidelines to guarantee both compliance and safety.
Optional Accessories
To further enhance the performance and safety of your gas vent system, National Flues offers a range of optional accessories. These may include additional support plates and other components specifically designed to work in tandem with the IL Firestop Spacer. These accessories can provide extra stability and ensure that the entire system functions as efficiently as possible. If you are looking to upgrade or personalise your installation, consider exploring these add-ons to achieve a custom fit for your property.
Addressing Common Objections
One common concern is whether the spacer will fit all types of installations. The answer is that while the IL Firestop Spacer is highly versatile—available in 100mm, 125mm, and 150mm sizes—it is important to choose the right size for your specific system. Another point of discussion is the material compatibility; rest assured, the combination of aluminium and zalutite has been engineered to offer excellent durability even in challenging climates. Finally, some customers may worry about the installation process. With clear instructions and the option to use complementary accessories like the support plate, even less experienced installers can achieve a safe and secure setup.
Why Safety Matters
Maintaining the correct clearance between your gas vent system and combustible materials is not just a regulatory requirement—it is a matter of safety for you and your family or clients. The IL Firestop Spacer plays a critical role in preventing the spread of heat and fire hazards, ensuring that your property meets the highest safety standards. With a robust warranty of 5 years and a legacy of over two decades of use, this spacer is a smart investment in the overall security and functionality of your vent system.
Final Considerations
This comprehensive guide should provide you with all the information needed to make an informed decision regarding the IL Firestop Spacer - Ø 125. Its superior design, combined with optional accessories and robust technical specifications, makes it an excellent choice for both new installations and system upgrades. Whether you are a homeowner or a trade professional, safety and efficiency should always be the top priority when dealing with gas vent systems. With National Flues, you can trust that you are getting a product that meets stringent UK standards and offers a reliable performance.
The integration of this spacer with additional optional accessories, such as support plates, further enhances the installation process, ensuring maximum safety and efficiency. Consider the benefits of a well-secured installation and the peace of mind that comes with choosing a trusted brand. With clear instructions, robust construction, and a commitment to quality, the IL Firestop Spacer stands firmly as a cornerstone in any gas vent setup.
Add to cart now or call 01670 206 999.
Compatible and other products that may be of interest...
