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High-Quality Insulation for Fireplace Flues | Keep Your Home Warm | National Flues

When it comes to maintaining an efficient and warm fireplace in your UK home, insulation for fireplace flues is crucial. Our Insulation category offers premium quality MI-Flex, 316L Mi-FLEX, 150MM (6 INCH) insulation solutions that are specifically designed to enhance the performance of your fireplace flues. At National Flues, we understand the importance of keeping your home warm while ensuring safety and functionality. Explore our range of insulation products to optimize your fireplace efficiency.

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StovesPremium Stoves
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MI-FlexFlexible Liner
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Installation PartsInstallation Parts
After Care PartsAfter Care Parts

The best selling flue liner in the UK. Suitable for gas, oil, and approved solid fuels. Call our advisers on 01670 206 999 if you need any help choosing.

£42.49

25-150-VBF

Insulation Back Filler - Ø 150

Insulation Back Filler - Ø 150

OUT OF STOCK

£68.49

90-CW125150

CHIMWRAP Liner Wrap 1000mm - Ø 125/150

CHIMWRAP Liner Wrap 1000mm - Ø 125/150

OUT OF STOCK

£26.99

90-LECA

Leca 50L Bag

Leca 50L Bag

£36.99

90-RPS-150

Rockwool Tube - 1000mm long  150mm

Rockwool Tube - 1000mm long 150mm

£26.49

90-RPS-T

Aluminium Tape

Aluminium Tape

£33.99

90-VERM

Vermiculite (100L Bag)

Vermiculite (100L Bag)

Your Insulation Questions Answered

Why is insulation important for fireplace flues? -

Insulation plays a key role in retaining heat within the fireplace flues, ensuring efficient combustion and heat distribution while preventing heat loss.

Are MI-Flex insulation products suitable for all types of fireplace flues? +

How can insulation benefit my home? +

Is installation of insulation products difficult? +

Do insulated fireplace flues require less maintenance? +

Can insulation products help in reducing heating costs? +

Are National Flues insulation products environmentally friendly? +

Insulating your fireplace flues with our MI-Flex, 316L Mi-FLEX, 150MM (6 INCH) products is a smart investment for UK homeowners. Proper insulation not only enhances the heat retention capacity of your fireplace but also prevents heat loss, leading to increased energy efficiency. Our insulation solutions are crafted to withstand high temperatures and offer long-lasting performance, ensuring that your fireplace operates at its best. Whether you have a traditional fireplace or a modern one, our insulation products cater to diverse needs and installation requirements.
Why Buy Insulation Products
The insulation products in this category are ideal for both residential and commercial fireplace installations. By using our MI-Flex, 316L Mi-FLEX, 150MM (6 INCH) insulation, you can effectively seal gaps and crevices in your fireplace flues, reducing heat wastage and optimizing heat distribution. Additionally, our insulation helps in preventing the buildup of creosote and other combustible materials, minimizing the risk of chimney fires. With easy installation and superior performance, our insulation products are indispensable for maintaining a safe and efficient fireplace in your property.

Trusted By Trade Professionals

Our Insulation products and services are trusted by hundreds of professionals nationwide. We're committed to providing quality and reliability that meets the high standards of our customers.

Dedicated Support

Experience our unparalleled customer service and support when you buy Insulation from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.

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