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Lid - Ø 350 (3-350-036)
National Flues presents the Lid - Ø 350, a premium modular flue cap engineered from 316L stainless steel. Perfect for use in commercial and residential flue systems, this high-quality product is designed for safe and effective operation in boilers, ovens, and ventilation systems. Enhance your flue system with our trusted range of accessories. Discover reliable, high-performance flue solutions with National Flues.
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£133.31
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Constructed from high-grade 316L stainless steel Designed for versatility in both low and high-temperature applications CE marked under EN 1856-1 ensuring compliance and safety Integrated high-pressure sealing gasket (P1/H1) for efficient performance Modular design with a push-fit jointing system and locking band for secure installation Maintains a safe 50mm distance from combustible materials
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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.
Introducing the Lid - Ø 350, a crucial component of the SWPro modular single-wall flue system, crafted from 316L grade stainless steel. Suitable for diverse applications such as boilers, ovens, ventilation systems, and chimney shaft liners, this product excels in both high and low-temperature environments as well as non-condensing and condensing conditions. Featuring a high-pressure sealing gasket P1/H1, the system ensures maximum efficiency and safety.
The stainless steel construction varies in thickness, tailored to different flue diameters, and is CE marked under the EN 1856-1 standard. The modular design with a push-fit jointing system and Locking Band secures the placement while maintaining a safe distance of 50mm from any combustible materials.
SKU: 3-350-036
Technical Specifications
Material
316L Stainless Steel
Applicable Standard
EN 1856-1
Temperature Range
Suitable for both high and low-temperature applications
1. Ensure the installation area is clean, dry, and free of obstructions. Avoid any combustible materials within 50mm of the flue wall.
2. Position the Lid - Ø 350 at the designated end of the flue branch or header.
3. Secure the lid using the push-fit jointing system, ensuring it is fully seated into place.
4. Use the provided Locking Band to firmly secure the lid, following the manufacturer’s guidelines for optimal tension.
5. Check all connections for a tight fit to confirm the sealing gasket (P1/H1) is properly engaged and effective.
6. Inspect the installation according to local building and safety regulations.
7. For additional accessories (such as extra sealing components or optional wind deflectors), consult our accessory catalog to enhance system performance.
The Lid - Ø 350 is constructed from high-grade 316L stainless steel, ensuring durability and longevity.
Yes, the Lid - Ø 350 is designed to handle both high and low-temperature environments, making it versatile for various applications.
The SWPro flue system, including the Lid - Ø 350, is ideal for use with boilers, ovens, ventilation systems, and as a chimney shaft liner.
The Lid - Ø 350 is secured using a push-fit jointing system and a Locking Band for added stability.
The SWPro flue system is CE marked with designation numbers EN 1856-1: T200 H1 W Vm L50040 O(50) for diameters Ø 80 to Ø 200 and EN 1856-1: T200 H1 W Vm L50050 O(50) for diameters Ø 250 to Ø 400.
Absolutely, the SWPro flue system is designed for both positive and negative pressure applications.
Ensure a safe distance of 50mm from the outside of the flue to any combustible materials such as wood or plasterboard.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Monday, May 12th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call.
If you need faster stove or fireplace delivery please also give us a call.
We can sometimes 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 Lid - Ø 350 buyers guide
Comprehensive Buyers Guide for the Lid - Ø 350
The Lid - Ø 350 from National Flues is a meticulously engineered product designed to provide a secure and reliable finish to your flue systems. Constructed from top-grade 316L stainless steel, this flue cap not only guarantees longevity but also offers outstanding performance in both high and low-temperature environments. This guide will walk you through the features, benefits, installation tips, and optional accessories available for the Lid - Ø 350, ensuring you make an informed decision for your heating and ventilation system.
Why Choose the Lid - Ø 350?
Superior Quality Materials:
The use of 316L stainless steel ensures the Lid - Ø 350 remains resilient against corrosion and harsh weather conditions, providing long-term durability even when exposed to high moisture levels and challenging environments. This premium material is key to supporting a flue system that must operate reliably over many years.
Versatile Application:
Whether you are installing a flue for a boiler, an oven, or as a chimney shaft liner, this lid adapts effortlessly. Its design complies with the EN 1856-1 standard, making it suitable for a wide range of flue diameters and ensuring its function across both condensing and non-condensing systems.
Enhanced Safety and Efficiency:
A hallmark of the Lid - Ø 350 is its high-pressure sealing gasket (P1/H1) and its precise modular push-fit design. These features guarantee an exceptionally tight seal that prevents leaks, contributes to overall system efficiency, and upholds critical safety standards by ensuring a safe 50mm clearance from combustible materials.
Technical Precision and Ease of Installation
The design philosophy behind the Lid - Ø 350 focuses on ease of installation and reliability. As part of the SWPro modular single-wall flue system, it is engineered to bond seamlessly with other system components. The push-fit jointing system and accompanying Locking Band simplify the installation process, eliminating the need for complex fitting procedures. This not only saves time during installation but also minimizes the risk of human error, ensuring your system performs optimally from day one.
Optional Accessories to Complete Your Setup
While the Lid - Ø 350 is an outstanding product in its own right, National Flues offers a range of optional accessories to enhance the performance and aesthetics of your flue system. Consider exploring these additions:
- Extra Sealing Gaskets: Enhance the integrity of your flue joints with additional high-performance gaskets designed for extra sealing capacity.
- Locking Bands: For those who wish to reinforce the secure mounting of flue components, our range of locking bands ensures every connection remains robust and resistant to environmental stresses.
- Wind Deflectors and External Accessories: These are ideal for installations in areas prone to strong winds, ensuring that every component stays firmly in place and operates efficiently.
- Customised Connectors and Joints: Tailored to help you achieve a perfect fit in complex installations, these accessories can be the key to achieving an entirely integrated and safe flue system.
It is important to consult the full accessory catalogue available through National Flues to ensure you select components that perfectly match your system’s specifications. These optional accessories not only boost system performance but also contribute to a more secure and aesthetically organized flue installation.
Addressing Common Concerns and Objections
Installation Challenges:
Many customers worry about the complexity of installing new flue components. Rest assured, the Lid - Ø 350 is designed for a straightforward, push-fit installation that doesn’t require specialized tools or expert intervention. Clear installation guidelines and support from our customer service team help overcome any potential hurdles.
Compatibility Issues:
Compatibility with your existing system is crucial. The Lid - Ø 350, being part of the SWPro modular range, is versatile enough to integrate with various flue configurations. Our technical support can also assist in determining the best accessory combinations for a seamless integration.
Longevity and Maintenance:
Investing in a durable product like the Lid - Ø 350 means fewer worries about maintenance. The high-grade stainless steel construction and tight sealing system are engineered to hold up over years of service, reducing the need for frequent repairs or replacements. Furthermore, optional maintenance accessories are available to help you keep your flue system in peak condition.
Cost vs. Value:
While initial investment is important, the longevity and reliability offered by the Lid - Ø 350 translate into long-term savings by reducing repair costs and downtime. Our competitive pricing and robust warranty underline the value you're getting—a quality product that stands the test of time.
Final Considerations
When selecting components for your flue system, it is essential to consider not only the immediate performance but also the long-term reliability and safety of the entire assembly. The Lid - Ø 350 is a central piece in this guarantee, ensuring that every installation adheres strictly to safety standards while delivering top-notch performance under various operating conditions.
National Flues is committed to providing complete solutions by offering optional accessories designed to complement and enhance the core product. We encourage you to explore our comprehensive range of accessories that include extra sealing components, locking bands, and custom connectors to achieve the ultimate flue system setup.
By choosing the Lid - Ø 350 and the associated optional accessories, you are not only investing in a product that meets rigorous standards but also partnering with a trusted brand that prioritises quality, customer service, and reliability in every installation.
Invest in the best for your flue system today—buy now or call 01670 206 999.
Secure your high-quality flue solution today—add to cart or call 01670 206 999.
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