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Screw-FIX Top Hat Adaptor - Ø 200 (25-200-THA)
National Flues presents the Screw-FIX Top Hat Adaptor - Ø 200, a premium chimney adaptor designed for seamless integration with MI-FLEX 316 and 904 systems. This essential chimney accessory ensures a secure, gas-tight connection, enhancing both safety and efficiency for various fuel types. Ideal for masonry chimneys and compliant with BSEN standards, it is the perfect solution for both domestic and trade customers seeking quality and reliability.
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£51.99
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At a Glance
Premium 316L stainless steel construction
Complies with Building Regulations Document J
Secure, gas-tight connection for MI-FLEX flexible flue liners
Suitable for wood (<20% moisture), smokeless coal, gas and oil appliances
Designed with a long tail single wall connection and round cover plate for a neat finish
Versatile use within masonry chimneys
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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.
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 Screw-FIX Top Hat Adaptor - Ø 200 is a premium quality fitting designed for use with MI-FLEX 316 and 904 flexible flue liners, ensuring a robust and efficient chimney system. This adaptor is part of the versatile MI-FLEX Screw-FIX range, specifically engineered to comply with Building Regulations Document J, requiring the complete enclosure of flexible flue liners inside masonry chimneys. Suitable for appliances up to 600°C (T600 designation), this adaptor supports a variety of fuel types including wood (<20% moisture), smokeless coal, gas, and oil.Perfect for making the transition from a connecting flue system to a flexible flue liner, the Screw-FIX Top Hat Adaptor ensures that the connection is made securely within an existing masonry chimney, thereby maintaining a sleek and professional appearance.
Use fire cement, ceramic rope, or high-temperature sealant to achieve a gas-tight seal. The chimney system must be accessible for regular sweeping and maintenance, ideally performed by a certified professional such as those registered with HETAS. Regular maintenance is essential, especially for solid fuel applications, to prevent blockages and build-up of deposits.
SKU: 25-200-THA
Technical Specifications
SKU
25-200-THA
Product Name
Screw-FIX Top Hat Adaptor - u00d8 200
Material
316L Stainless Steel
System
MI-FLEX Accessories MF20
Colour Finish
Stainless Steel / NATURAL
Fuels
Wood (<20% moisture), Smokeless Coal, Gas, Oil
Approvals
CE / HETAS
Maximum Temperature
600u00b0C (T600 designation)
Design Standard
BSEN 1856-2
Application
Rigid to flexible flue liner transition in masonry chimneys
• Ensure the adaptor is installed directly at the base of the chimney below the register plate.
• The long tail single wall connection is designed to fit snugly into the connecting pipe, ensuring a secure transition to the flexible flue liner.
• Use fire cement, ceramic rope, or high-temperature sealant to achieve a gas-tight seal.
• Installation should be carried out by a certified professional, especially for solid fuel systems, in compliance with Building Regulations Document J.
• Regular maintenance and chimney sweeping are essential to prevent blockages and the build-up of deposits.
The adaptor is used to securely connect MI-FLEX flexible flue liners to a rigid flue system within a masonry chimney, ensuring a gas-tight seal and efficient smoke evacuation.
Yes, the Screw-FIX Top Hat Adaptor is compatible with wood (<20% moisture), smokeless coal, gas, and oil appliances.
No, Building Regulations Document J requires that flexible flue liners be fully enclosed within a masonry chimney. Non-masonry enclosures are not acceptable.
For best results, use fire cement, ceramic rope, or high-temperature sealant to make a gas-tight seal between the adaptor and the flexible flue liner.
While it's possible for experienced DIYers to install the adaptor, we recommend using a certified professional for safety and compliance with building regulations.
Chimney systems should be inspected and cleaned at least once a year. For solid fuel appliances, it's advisable to sweep the chimney twice a year: at the end of the heating season and before the start of the next one.
A list of HETAS registered sweeps can be found at www.hetas.co.uk.
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 Screw-FIX Top Hat Adaptor - Ø 200 buyers guide
Comprehensive Buyers Guide for the Screw-FIX Top Hat Adaptor - Ø 200
When it comes to chimney systems, ensuring both safety and efficiency is paramount. The Screw-FIX Top Hat Adaptor - Ø 200 by National Flues is engineered to provide a robust and reliable connection between a rigid flue system and MI-FLEX flexible flue liners, making it a critical component for maintaining a secure chimney system.
Product Overview
The adaptor is constructed from high-grade 316L stainless steel, which not only guarantees durability but also excellent resistance to corrosion. Its design complies with Building Regulations Document J, ensuring that it meets all necessary safety and performance standards. Whether you are installing a new system or upgrading an existing one, this adaptor is designed to provide a seamless transition from a connecting flue system to a flexible flue liner within a masonry chimney.
Key Features and Their Benefits
Durable Construction: Made from premium 316L stainless steel, this adaptor is built to last even under the high-temperature conditions produced by many modern appliances. This robust material ensures longevity and minimal maintenance, giving you confidence in your chimney system for years to come.
Compliance and Safety: By meeting Building Regulations Document J, the adaptor guarantees a safe installation. This is crucial for both household and commercial applications, where ensuring a gas-tight and secure connection is a legal requirement as well as a safety imperative.
Versatility: Designed for use with MI-FLEX 316 and 904 systems, the adaptor supports a range of fuel types including wood (with moisture content below 20%), smokeless coal, gas, and oil. This versatility makes it an ideal choice for homeowners with varying heating systems.
Professional Finish: The inclusion of a long tail single wall connection and an integrated round cover plate not only enhances the functionality of the system but also provides a neat and professional appearance. This design choice ensures that any unsightly gaps or openings are effectively concealed, resulting in a system that is both efficient and aesthetically pleasing.
Installation Considerations
Installing the Screw-FIX Top Hat Adaptor requires careful attention to detail. It should be mounted directly at the base of the chimney, below the register plate. The adaptor is designed to fit snugly with the connecting pipe, which helps maintain a secure connection with the flexible flue liner. To ensure that the system is gas-tight, it is essential to use appropriate sealing materials such as fire cement, ceramic rope, or high-temperature sealant. For enhanced safety and optimal performance, it is recommended that the installation be carried out by a certified professional, particularly in cases where the system is used with solid fuel appliances.
Maintenance and Safety
Regular maintenance is key to the longevity and efficiency of your chimney system. Annual inspections and cleaning are advised, and for systems using solid fuels, a bi-annual sweep is recommended: once at the end of the heating season and again before the start of the next. This routine maintenance will help prevent blockages and the accumulation of dangerous deposits, ensuring that the system remains efficient and safe to use.
Addressing Common Concerns
Installation Challenges: Some users may be concerned about the complexity of installing a new adaptor into an existing system. However, with the clear design and compatibility with standard MI-FLEX systems, the installation process is straightforward when undertaken by a professional. National Flues provides comprehensive installation guidelines to help streamline the process.
Long-Term Reliability: Another common concern is the longevity of the adaptor, particularly when exposed to high temperatures and various fuel types. With its construction from premium 316L stainless steel and adherence to strict safety standards, this adaptor is built to perform reliably over the long term, minimising the need for frequent replacements.
Cost Consideration: While the initial investment in a quality component might seem higher, the peace of mind and safety provided by a secure, compliant chimney system are invaluable. The Screw-FIX Top Hat Adaptor is priced competitively, making it an excellent investment for both new installations and upgrades.
Optional Accessories
National Flues also offers a range of optional accessories designed to complement the Screw-FIX Top Hat Adaptor. These accessories can further enhance the efficiency and appearance of your chimney system. Whether you need additional sealing materials, maintenance tools, or custom-fit components, exploring these options can ensure that your installation is not only robust but also tailor-made to your specific requirements.
Why Choose National Flues?
National Flues has built a reputation for quality and reliability in the chimney and flue systems market. With competitive pricing, secure online payments, and nationwide delivery, our focus is on providing both retail and trade customers with exceptional service and high-quality products. Choosing our Screw-FIX Top Hat Adaptor means you are investing in a product that is designed to perform under rigorous conditions while meeting the highest standards of safety and efficiency.
In conclusion, the Screw-FIX Top Hat Adaptor - Ø 200 is more than just an accessory; it is an essential component that ensures your chimney system operates safely and efficiently. Its robust design, compliance with stringent safety standards, and compatibility with multiple fuel types make it a wise choice for any homeowner or professional. With National Flues, you are guaranteed not only a premium product but also a comprehensive support system that includes installation guidance and optional accessories to complete your setup.
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