× National Flues
We Will NOT Be Beaten on Price.
Free Delivery on Orders Over £100
5 Star Reviewed on Trustpilot
Free Flue Design Service Available
Help? 01670 206999 (8am-5pm)

 

Top Quality MI-Flex Gas Installation Packs | National Flues

Upgrade your fireplace with MI-Flex Gas Installation Packs from National Flues. Our 100MM (4 INCH) packs are designed for easy and secure installation, providing a reliable solution for your gas fireplace needs.

Shop By Department

StovesPremium Stoves
FireplacesStunning Fireplaces
MI-FlexFlexible Liner
Chimney FlueChimney Flue
Connecting PipesConnecting Pipes
Fans Flashings CowlsFans Flashings Cowls
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.

Your Installation Packs Questions Answered

What does the MI-Flex Gas Installation Pack include? -

The MI-Flex Gas Installation Pack includes all the necessary components for a complete installation, such as flex, terminals, and fittings.

Are MI-Flex Gas Installation Packs easy to install? +

Can the 100MM (4 INCH) pack be used for different fireplace sizes? +

Are National Flues MI-Flex Gas Installation Packs safe to use? +

Do MI-Flex Gas Installation Packs come with a warranty? +

Can I customize the components in the MI-Flex Gas Installation Pack? +

Are National Flues MI-Flex Gas Installation Packs compatible with different gas fireplace brands? +

How can I ensure the proper installation of the MI-Flex Gas Installation Pack? +

When it comes to installing a gas fireplace, having the right equipment is crucial. National Flues MI-Flex Gas Installation Packs are expertly crafted to meet the highest standards of quality and safety. These packs include everything you need for a seamless installation process, making it convenient for both professionals and DIY enthusiasts. With our 100MM (4 INCH) packs, you can rest assured that your fireplace will operate efficiently and effectively.
Why Buy Installation Packs Products
Our MI-Flex Gas Installation Packs are ideal for a wide range of gas fireplace setups. Whether you are renovating your current fireplace or installing a new one, these packs offer the perfect solution. The 100MM (4 INCH) size is commonly used in domestic fireplace installations, providing a versatile option for various applications. By choosing National Flues, you are choosing reliability, safety, and convenience for your fireplace project.

Trusted By Trade Professionals

Our Installation Packs 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 Installation Packs from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.

Multiple Payment Options- including Klarna, Clearpay, Mastercard, Visa and Paypal
Free Design Service