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:
Top Insert Sleeve with Rain Cap - Ø 125 (20-125-PSRC)
Enhance your chimney's performance and longevity with National Flues' Top Insert Sleeve with Rain Cap - Ø 125. This high-quality, 316L stainless steel accessory is designed to protect your chimney from rain, pests, and environmental damage while ensuring a secure fit for MI-FLEX flue liners. Ideal for a range of fuel types, including wood, smokeless coal, oil, and gas, this product represents the sophistication and reliability synonymous with National Flues, offering both compliance with UK building regulations and outstanding performance.
Hover to Zoom / Click for Gallery
In Stock
£30.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Made from high-grade 316L stainless steel
Compatible with MI-FLEX 316 & 904 flexible flue liners
Provides essential rain and pest protection
Withstands temperatures up to 600°C
Easy installation with integrated clamping protection
Meets HETAS and CE approvals, ensuring safety compliance
×
Email Product
Enter your email address to send the product details:
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 Top Insert Sleeve with Rain Cap - Ø 125 is an essential component within the MF20 MI-FLEX range. Specifically designed to seamlessly integrate with MI-FLEX 316 and 904 flexible flue liners, this accessory ensures a complete and efficient chimney system when used together. According to Building Regulations Document J, flexible flue liners must be installed exclusively within masonry chimneys, not in timber or plasterboard enclosures.
Capable of withstanding temperatures up to 600°C, it is suitable for various fuel types including wood with less than 20% moisture, smokeless coal, gas, and oil. This product not only protects your flue from rain and pest ingress but also facilitates easier installation and secure clamping with its integrated protection sleeve. Maintenance is crucial, and we recommend biannual sweeping and inspection by a certified professional to ensure optimal performance and safety.
SKU: 20-125-PSRC
Technical Specifications
SKU
20-125-PSRC
Diameter
u00d8 125
Material
316L Stainless Steel
Temperature Rating
600u00b0C
Colour Finish
Natural / Stainless Steel
Approvals
HETAS / CE
Compatible With
MI-FLEX 316 & 904 flexible flue liners
Fuel Types
Wood (<20% moisture), Smokeless coal, Oil, Gas
This product is designed for simple integration into your chimney system. It must be installed in a masonry chimney as per Building Regulations Document J. Always consult and/or hire a competent professional to ensure proper installation. The Top Insert Sleeve with Rain Cap features an integrated clamping mechanism for secure fitting. Regular maintenance is recommended, with biannual sweeping and inspection by a certified professional to keep the system running efficiently. When installing, confirm that all flexible flue liners are positioned entirely within the masonry structure to comply with safety standards.
No, according to Building Regulations Document J, flexible flue liners must be installed entirely within masonry chimneys.
The Top Insert Sleeve with Rain Cap is part of the MI-FLEX range, made from high-quality materials designed for durability and performance.
It is suitable for wood with less than 20% moisture, smokeless coal, gas, and oil.
Maintenance and inspection should be carried out at least once a year. For solid fuel appliances, it is recommended to sweep the chimney twice a year.
The product is suitable for use on appliances up to 600°C (T600 designation).
Installation should be performed by or under the guidance of a competent person to ensure compliance with safety standards.
It is crucial to prevent excess water from passing through the system and running back to the appliance.
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 Top Insert Sleeve with Rain Cap - Ø 125 buyers guide
Introduction
When it comes to maintaining a safe, efficient, and long-lasting chimney system, every component plays a critical role. The Top Insert Sleeve with Rain Cap - Ø 125 from National Flues is no exception. Designed to protect your chimney from rainwater and pests, this accessory not only enhances the overall performance of your chimney but also ensures that your MI-FLEX flexible flue liners are securely installed. In this comprehensive buyer’s guide, we will explore the various aspects of this product including its key features, benefits, installation details, and answers to common concerns, all aimed at empowering you to make an informed decision.
Product Overview
The Top Insert Sleeve with Rain Cap is an essential element in the MI-FLEX system, created specifically for use alongside MI-FLEX 316 and 904 flexible flue liners. The robust 316L stainless steel construction ensures that the product stands up to harsh weather conditions while providing an impeccable level of protection for your chimney. Its ability to tolerate temperatures up to 600°C makes it suitable for a variety of fuel types, including wood with less than 20% moisture, oil, gas, and smokeless coal. With adherence to strict safety standards such as HETAS and CE approvals, you can be confident in the product’s reliability and performance.
Key Features and Benefits
Durable Construction: Made from 316L stainless steel, this top insert sleeve offers excellent longevity and resistance to corrosion, ensuring your chimney remains protected for many years.
- Benefit: Reduced need for frequent replacements or repairs.
Integrated Rain Cap: The innovative design includes a rain cap that provides an advanced barrier against water ingress, preventing moisture-related issues in your flue system.
- Benefit: Protects the structural integrity of your chimney and reduces maintenance costs.
Secure Clamping Mechanism: With a built-in clamping system, this accessory guarantees a firm and stable fit for your flexible flue liners, thereby minimising the risks of looseness or dislodgement during severe weather.
- Benefit: Enhances the overall safety and operational reliability of your chimney.
Compliance and Safety: Designed in accordance with Building Regulations Document J, this product is only suitable for masonry chimneys, ensuring that your installation is both legal and safe.
- Benefit: Peace of mind knowing your system meets all regulatory standards.
Installation and Maintenance
Installation of the Top Insert Sleeve with Rain Cap should be undertaken by a competent professional to ensure compliance with safety regulations. Here are some key points to consider during installation:
- Chimney Type: This product is suitable only for masonry chimneys. Do not attempt to install it in timber or plasterboard enclosures.
- Positioning: Ensure that the flexible flue liners are positioned entirely within the masonry structure as mandated by Building Regulations Document J.
- Tool Requirement: A standard set of installation tools will suffice as the integrated clamping mechanism eases the installation process.
- Inspection and Maintenance: It is recommended to perform a biannual inspection and cleaning. This maintenance routine involves sweeping the chimney to remove any accumulated soot or debris and checking the integrity of the installation.
Continuous upkeep is crucial for long-term performance and safety. Engaging a certified chimney sweep or installer for regular check-ups can prevent potential issues before they become costly repairs.
Addressing Common Concerns
Many homeowners and professionals may have reservations when it comes to integrating new components into their existing chimney systems. Here, we address some common concerns:
- Installation Complexity: Despite initial concerns about the installation process, the design of this product facilitates a smooth setup. Its integrated protection sleeve and clamping system are engineered for simplicity, making installation straightforward when guided by a professional.
- Compatibility Issues: This product is compatible with the MI-FLEX system, specifically designed to work seamlessly with their flexible flue liners. If you are unsure about compatibility, consult with your installer or a National Flues representative to confirm that this accessory is the right choice for your system.
- Maintenance Requirements: Some customers worry about the upkeep involved. However, with simple biannual cleaning and inspection, the system remains efficient and safe. Investing a small amount of time in routine maintenance can significantly extend the life of your chimney accessories.
- Weather Resistance: The integrated rain cap is purpose-built to counteract the effects of rain and environmental exposure. This design feature ensures that moisture is kept at bay, a common concern in the variable UK climate.
Concluding Thoughts
Investing in the Top Insert Sleeve with Rain Cap - Ø 125 is a strategic decision that enhances the safety, efficiency, and longevity of your chimney system. National Flues is known for its high-quality, reliable products that meet strict safety standards, and this accessory is no exception. By choosing this product, you not only secure your chimney against harsh weather and pests but also ensure compliant, professional installation and enduring performance. The thoughtful design and robust construction make it an indispensable addition to your chimney maintenance regime.
For anyone looking for a reliable, long-term solution to protect and optimise their chimney, the Top Insert Sleeve with Rain Cap offers unparalleled benefits. From its weather-resistant properties to its ease of installation and maintenance, each feature has been designed with your peace of mind in mind. The integration of advanced safety mechanisms alongside high-quality materials means that you can trust this product to deliver both performance and durability. Whether you are upgrading an existing system or installing a new chimney setup, the product is engineered to complement a variety of fuels and meet the rigorous demands of modern building standards.
Before making your final decision, consider the optional accessories that can further improve your chimney’s efficiency. These additions can offer tailored solutions for specific needs, enhancing overall performance. In the end, investing in comprehensive chimney protection is not just about adhering to regulatory standards but also about ensuring a safe, efficient, and resilient home environment.
Buy now or call 01670 206 999.
Compatible and other products that may be of interest...
