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Rockwool Tube - 1000mm long 125mm (90-RPS-125)
National Flues proudly presents the Rockwool Tube – a top-notch insulation solution designed for flue liners, chimney insulation, and high-performance rockwool insulation tube applications. Engineered for excellence, this product ensures your chimney remains efficient, safe, and properly insulated against condensation and high operating temperatures. Whether fitting a 125mm, 150mm, or 200mm liner, our Rockwool Tube delivers reliable results, making it an essential component for every chimney system.
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£29.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Durable, high-grade rock wool construction
Withstands continuous operating temperatures up to 500°C
Minimises condensation, mould, and vermin risks
Versatile sizing: fits 125mm, 150mm, 200mm liners; can be trimmed for 175mm
Quick and secure installation with recommended foil and aluminium tapes
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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 Rockwool Tube, measuring 1000mm in length and 125mm in diameter, is an essential component for insulating your flue liner. This highly durable, non-combustible tube is crafted from top-grade rock wool. Not only does it help in reducing the likelihood of condensation within the flue, but it also withstands continuous operating temperatures up to 500°C.
Additionally, it is non-sustaining to vermin and resistant to fungi, mould, and bacteria growth, providing a clean and safe solution for your chimney. Available in various sizes to fit 125mm (5 inches), 150mm (6 inches), and 200mm (8 inches) chimney liners, the Rockwool Tube can be easily trimmed for a 175mm (7 inches) liner. For secure installation, use foil tape for all joints, and for added longevity, apply 50mm wide aluminium tape.
Note: This product is not suitable for Class 2 flexible liners (gas and oil liners).
SKU: 90-RPS-125
Technical Specifications
Length
1000mm
Diameter
125mm
Material
High-grade Rock Wool
Temperature Rating
Up to 500u00b0C
Compatible Liner Sizes
125mm, 150mm, 200mm (Trim for 175mm)
Installation Requirements
Foil tape for joints, 50mm wide aluminium tape for reinforcement
For a secure installation, drop the Rockwool Tube in 1m sections as you insert your flue liner down the chimney. Use self-adhesive foil tape to seal every joint between sections, ensuring there are no gaps where condensation could form. For added durability, apply a 50mm wide aluminium tape over the joints. Always ensure the liner is properly cleaned and free from debris before installation. Caution should be taken near any flexible liners as this product is not suitable for Class 2 flexible liners used for gas and oil.
The Rockwool Tube is used to insulate flue liners, reducing the possibility of condensation within the flue, especially in chimneys exposed to harsh weather conditions.
The Rockwool Tube is manufactured from non-combustible rock wool, known for its high durability and resistance to vermin, fungi, mould, and bacteria.
The Rockwool Tube is available in three diameters to fit liner sizes of 125mm, 150mm, and 200mm. It can also be trimmed to fit a 175mm liner.
No, the Rockwool Tube is not suitable for Class 2 flexible liners, which are typically used for gas and oil.
The tube should be installed in 1m lengths as you drop the flue liner down the chimney. Secure each section with self-adhesive tape and reinforce with 50mm wide aluminium tape.
The Rockwool Tube is suitable for continuous operating temperatures of up to 500°C.
Yes, it is recommended to seal all joints of the Rockwool Tube with 50mm wide aluminium tape for added durability and performance.
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 Rockwool Tube - 1000mm long 125mm buyers guide
Comprehensive Buyers Guide
When it comes to ensuring the longevity and efficiency of your chimney system, the proper insulation of your flue liner is paramount. At National Flues, we understand the importance of a well-insulated flue, which not only optimises performance but also safeguards your property from potential moisture damage and associated risks. Our Rockwool Tube, measuring 1000mm in length with a 125mm diameter, has been engineered to meet the highest standards of durability and thermal efficiency.
Why Choose the Rockwool Tube?
Exceptional Heat Resistance: With a temperature rating of up to 500°C, this rock wool insulation is built to withstand continuous high temperatures without degrading. This feature is crucial in maintaining the structural integrity of your chimney, especially during extreme weather conditions.
Moisture and Condensation Control: One of the main challenges with traditional flue liners is the buildup of condensation, which can lead to mould growth and potential structural damage. The Rockwool Tube minimises condensation by providing a robust thermal barrier, thus maintaining a dry and safe environment inside your chimney.
Enhanced Safety: Manufactured from non-combustible materials, our Rockwool Tube is inherently safe. Its resistance to fungi, mould, bacteria, and vermin ensures that you have a clean, hygienic insulation solution that adds an extra layer of protection to your home.
Versatility for Various Liner Sizes: Whether your chimney requires a 125mm, 150mm, or even a 200mm liner, our product offers the flexibility to fit these dimensions. It can even be trimmed for a 175mm liner, ensuring that there is no compromise on performance regardless of the size you require.
Installation Made Simple
Installing your Rockwool Tube is straightforward. As you lower your flue liner down the chimney, insert the 1m sections of Rockwool Tube to create an effective insulating barrier. Key to this process is the proper sealing of the joints. We recommend using self-adhesive foil tape on all connections, followed by a layer of 50mm wide aluminium tape for reinforced protection. These additional accessories not only enhance the longevity of your installation but also ensure that the insulation remains secure and efficient over time.
Addressing Common Objections
Is it difficult to install?
The installation process has been designed with ease of use in mind. Even if you are not a professional installer, the straightforward cutting and sealing process makes it accessible for DIY enthusiasts. Detailed instructions and the use of simple accessories like foil and aluminium tape simplify the task, ensuring a hassle-free experience.
What about long-term durability?
The Rockwool Tube is made from high-grade rock wool, a material renowned for its durability and longevity. It is specifically designed to withstand continuous heat without compromising performance. Additionally, the natural resistance to mould, bacteria, and vermin helps maintain the insulation over an extended period.
Can it be customised for different chimney sizes?
Absolutely! This product is available in various sizes and can be trimmed if necessary, making it a versatile solution suitable for a range of chimney liner dimensions. Whether you have a standard 125mm liner or need to adjust for a 175mm liner, this Rockwool Tube accommodates your needs.
Are there any recommended accessories?
Yes, for the best performance, complement the Rockwool Tube with self-adhesive foil tape and 50mm wide aluminium tape. These accessories are essential to seal joints effectively and provide additional reinforcement where necessary. We encourage you to explore our range of installation accessories to ensure the highest standard of installation and long-term performance.
Making the Right Investment
Investing in the Rockwool Tube means investing in the health and efficiency of your chimney system. At National Flues, we pride ourselves on offering products that combine quality, safety, and exceptional value. With competitive pricing and a commitment to customer satisfaction, choosing our Rockwool Tube is a smart decision for homeowners and trade professionals alike.
When considering your chimney insulation needs, think about the added benefits of enhanced safety, performance stability, and the reduction of maintenance issues linked to condensation and damp. Our Rockwool Tube not only meets these requirements but exceeds them, ensuring a robust defense against the elements.
Final Thoughts
The Rockwool Tube is a vital component for anyone looking to optimise their chimney's performance and ensure a safe, efficient flue system. With its superior thermal resistance, versatility in installation, and ease of use, this product addresses common concerns while delivering outstanding performance. Whether you are upgrading an existing installation or embarking on a new project, consider the added value of our recommended installation accessories to complete your setup.
Enhance the longevity and performance of your chimney system with a solution that has been specifically engineered for durability and reliability. Add to cart or call 01670 206 999.
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