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Vermiculite (100L Bag) (90-VERM)
National Flues provides a superior quality 100L bag of Vermiculite insulation designed specifically for chimney liners. This premium product is ideal for both residential and trade customers looking to improve energy efficiency by reducing heat loss and preventing harmful condensate formation. Our vermiculite is highly effective for solid fuel and wood burning systems and works perfectly with a range of optional accessories to deliver a complete chimney insulation solution. Explore complementary products like chimney cleaning tools and flue sealing materials to further enhance your installation.
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In Stock
£33.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
High thermal insulation for keeping your home warm in winter and cool in summer
Reduces heat loss and enhances energy efficiency
Minimises harmful condensate build-up
Lightweight design for easy handling and quick application
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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.
Vermiculite is a highly versatile and effective insulation material, perfect for use in solid fuel and wood burning chimney liners. This 100L bag is ideal for reducing heat loss during cold weather and helps keep the interior cool during hot weather. By insulating the flue, vermiculite minimizes the formation of harmful condensates and maintains a warmer flue temperature, thereby ensuring efficient combustion.
It also helps hold the liner rigid, making it easier to sweep. Our vermiculite is lightweight, easy to handle, and provides excellent thermal protection.
SKU: 90-VERM
Technical Specifications
Product
Vermiculite
Bag Capacity
100L
Application
Chimney liner insulation for solid fuel and wood burning systems
Material
Natural Vermiculite
Insulation Efficiency
High thermal resistance
Design
Lightweight and easy to handle
Usage
Prevents heat loss and condensate formation
Ensure the chimney liner is clean and dry before application. Evenly distribute the vermiculite along the insulation cavity, taking care to fill any gaps for optimal performance. It is recommended to wear protective equipment, such as gloves and a dust mask, during installation. For best results, follow local building standards and consider professional advice if you're unsure about the installation process. Avoid using the product in damp or excessively cold conditions to maintain its insulating properties.
Vermiculite is used to insulate chimney flues and liners, particularly for solid fuel and wood burning systems. It helps to reduce heat loss, prevent the formation of condensates, and keep the flue warm.
Vermiculite offers superior thermal insulation properties, meaning it can effectively reduce the amount of heat escaping from your chimney, ensuring that more heat stays in your home during cold weather.
Yes, vermiculite is suitable for use with various types of chimney liners, including those for solid fuel and wood-burning systems.
The amount of vermiculite required will depend on the size and length of your chimney liner. A 100L bag of vermiculite is typically sufficient for standard installations, but always check your specific needs.
Yes, vermiculite is a naturally occurring mineral that is safe to use as insulation. However, as with any insulation material, it's important to handle it according to safety guidelines.
Vermiculite helps maintain a warm flue temperature, which reduces the likelihood of condensate formation. Condensates are often caused by cooler flue temperatures, which can lead to moisture and creosote buildup.
Yes, vermiculite has a broad range of uses outside of chimney insulation. It can be used in gardening, lightweight concrete, and even as a packing material for hazardous substances.
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 Vermiculite (100L Bag) buyers guide
Ultimate Buying Guide for Vermiculite (100L Bag) Insulation
Vermiculite is a versatile, naturally occurring mineral that is becoming increasingly popular as an insulation material for chimney liners. This guide will walk you through the features, benefits, and installation tips for Vermiculite, while addressing any questions or concerns you might have. Whether you are a DIY enthusiast or a professional installer, this comprehensive guide is tailored to help you make an informed decision.
Why Choose Vermiculite for Your Chimney Liner?
Vermiculite insulation offers a host of benefits. First and foremost, its high thermal resistance makes it an excellent material for reducing heat loss. In colder months, it keeps your chimney flue warm, which is crucial for efficient combustion in solid fuel and wood burning systems. In warmer weather, it helps maintain a cooler interior environment. Some of the main advantages include:
• Enhanced Thermal Efficiency: Vermiculite minimises heat loss, promoting energy efficiency and reducing energy bills.
• Condensate Prevention: By maintaining a consistent flue temperature, vermiculite reduces the occurrence of condensate formation, which can lead to creosote build-up and other chimney issues.
• Lightweight & Easy to Handle: Unlike some heavier insulation materials, vermiculite is light and manageable, making it easier to install and adjust as needed.
• Durability: It reinforces the rigidity of the chimney liner, which not only supports better performance but also simplifies cleaning and maintenance.
How Does Vermiculite Work?
At its core, vermiculite is used to provide a barrier against heat loss. It is specifically designed to be poured or trowelled into spaces within the chimney, filling in gaps and creating a consistent layer of insulation. This ensures that the heat produced during combustion remains within the flue and the living space is not compromised. Its porous nature plays a significant role in trapping air, which further enhances its insulating properties.
Installation Guide and Safety Tips
Before installing vermiculite, it is essential to prepare the area. Ensure that the chimney liner is clean, dry, and free from any debris. When handling vermiculite, consider the following steps:
1. Preparation: Clear the installation area and wear protective gear including a dust mask and gloves. This helps minimise exposure to dust and ensures safe handling.
2. Application: Evenly distribute the vermiculite inside the insulation cavity. It should fill all gaps to optimise thermal retention.
3. Inspection: Once installed, inspect the chimney liner to ensure that the vermiculite has been evenly applied. This step is crucial to prevent any areas from becoming weak points in your insulation system.
4. Maintenance: Regular maintenance is recommended. Check for any sign of displacement or settling of the vermiculite over time, especially after heavy use of the chimney.
These steps, while straightforward, require careful attention. If you are uncertain about any aspect of the installation, consulting a professional chimney specialist is always a wise decision.
Addressing Common Concerns
Many customers often have concerns regarding the safety and efficacy of insulation materials. Here, we address some of the most frequently asked questions:
Is Vermiculite Safe to Use?
Yes, vermiculite is a naturally occurring mineral that is safe when handled properly. However, it is important to follow safety guidelines during installation to avoid inhaling any dust particles.
Do I Need Additional Accessories?
While our Vermiculite (100L Bag) offers excellent insulation by itself, optional accessories such as chimney cleaning brushes, protective flue liners, and sealing compounds can complement your installation. These accessories may enhance the overall performance, ensuring your heating system operates at peak efficiency.
How Much Vermiculite is Required?
The 100L bag is designed to be sufficient for most standard chimney installations. However, the exact amount may vary based on the dimensions and specific requirements of your chimney. It is always advisable to measure your installation space and consult with a professional if needed.
Exploring Optional Accessories
To harness the full potential of your chimney insulation project, consider exploring additional accessories:
• Flue Brushes and Cleaning Tools: Regular cleaning of your chimney is vital. Investing in quality chimney cleaning tools can help maintain an optimal operating condition and prolong the life of your insulation.
• Sealing Materials: In some cases, sealing compounds or gaskets may be required around joints to further enhance insulation performance.
• Insulation Boards or Wraps: These can be used in conjunction with vermiculite to offer supplementary thermal resistance in areas that might require extra insulation.
Making the Final Decision
Investing in vermiculite insulation not only supports energy efficiency but also contributes to a safer, more reliable chimney system. National Flues stands behind the quality and performance of our products, ensuring you receive the best insulation solution available. Our vermiculite is competitively priced and suitable for both DIY installations and professional projects.
As you prepare for your insulation project, consider your specific needs. Measure your chimney dimensions, assess the condition of your current insulation, and determine whether complementary accessories might benefit your setup. Do not hesitate to contact our knowledgeable team for expert guidance and additional product information. We are here to help you every step of the way.
Remember, effective insulation is a critical component of a safe and energetic home environment. Whether you are upgrading an existing system or installing a new one, our premium Vermiculite (100L Bag) is designed to deliver exceptional performance and durability.
Enhance your overall chimney efficiency and protect your investment by choosing the right products for a comprehensive solution. National Flues is committed to providing you with top-tier products and outstanding customer service.
Buy now or call 01670 206 999.
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