× 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)

 

Premium Bottom Fixings for Secure Fireplace Installations - Buy Now!

Bottom fixings are an essential component of flue systems, providing stability and support for secure fireplace installations. MI-Flex and 316L Mi-FLEX offer premium quality bottom fixings tailored for 80mm (3 inch) flues. These fixings are designed to withstand high temperatures and ensure long-term reliability. Whether you are a professional installer or a homeowner, investing in quality bottom fixings is crucial for the safety and efficiency of your fireplace.

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.

£19.99

20-80-MR

Increasing MI-FLEX Adaptor - Ø 80-Ø 100

Increasing MI-FLEX Adaptor - Ø 80-Ø 100

OUT OF STOCK

£21.99

25-80-MAELT

Screw-FIX Long Tail Adaptor - Ø 80

Screw-FIX Long Tail Adaptor - Ø 80

£22.99

25-80-MR

Screw-FIX Increaser - Ø 80-100mm

Screw-FIX Increaser - Ø 80-100mm

£32.49

25-80-THA

Screw-FIX Top Hat Adaptor - Ø 80

Screw-FIX Top Hat Adaptor - Ø 80

Your Bottom Fixings Questions Answered

What is the purpose of bottom fixings in a flue system? -

Bottom fixings provide essential support and stability to the flue, preventing any movement or dislodgment. They ensure the safe and secure installation of the flue system.

Are MI-Flex bottom fixings compatible with all types of flue systems? +

How do I install MI-Flex bottom fixings? +

Are 316L Mi-FLEX bottom fixings resistant to high temperatures? +

Can bottom fixings be used for both residential and commercial fireplace installations? +

Do bottom fixings require regular maintenance? +

What are the benefits of using premium bottom fixings in a flue system? +

Can bottom fixings prevent flue leaks and draft issues? +

When it comes to fireplace installations, ensuring the structural integrity of the flue system is paramount. Bottom fixings play a vital role in securing the flue in place, preventing any movement or instability. MI-Flex and 316L Mi-FLEX bottom fixings are crafted from high-grade materials to withstand the harsh conditions of a fireplace environment. With easy installation and a durable design, these fixings provide peace of mind knowing that your flue system is securely in place for years to come. Explore our range of bottom fixings today and elevate your fireplace installation experience!
Why Buy Bottom Fixings Products
Bottom fixings are commonly used in installations of wood-burning stoves, multi-fuel stoves, and gas fires. They are essential for connecting flue pipes to the appliance and ensuring a safe and efficient operation. The sturdy construction of MI-Flex and 316L Mi-FLEX bottom fixings makes them ideal for both residential and commercial fireplace setups. These fixings are suitable for new installations as well as replacements, offering a versatile solution for various flue system requirements.

Trusted By Trade Professionals

Our Bottom Fixings 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 Bottom Fixings 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