Newsletter September 2010 by Rockford Chimney Supply

Savings Continue at Rockford Chimney Supply!

We are grateful for your support in the past, and look forward to serving you for many years to come!

Why Reline Your Chimney?

A chimney liner, or flue, is the inner portion of a chimney that contains and channels the products of combustion. Most masonry chimneys are constructed with an inner liner of clay tiles. In some cases an original clay tile liner was never installed. In others, the tile lining may have cracked, crumbled and deteriorated over time- water damage, chimney fires, or just age can cause the deterioration of a clay liner.

For a chimney liner to work properly, it must be free from perforations, cracks, or damage of any kind. If it isn't, it can allow the products of combustion, such as carbon monoxide, moisture, smoke, and creosote, to seep into the living spaces of the home, or the heat from the products of combustion to pose a fire risk to combustible materials near the flue such as framing, walls, ceilings, insulation, or floors.

With a replacement chimney liner, you can fix the problem without having to repair or replace existing damaged tiles in the chimney. In most cases you can do the installation yourself.

Another situation in which a new liner can be helpful is if the chimney is too wide to create sufficient draft for your fireplace. If that is the case, a new, smaller liner will reduce the effective chimney size and increase draft.

Tips on Relining

  • Repair or replacement chimney liners typically are made of either rigid stainless steel or flexible stainless steel.
  • When deciding between a rigid or flexible liner bear in mind that, although a rigid liner has the advantage of smooth walls, a flexible liner is far easier to install.
  • If you only need to reline about 12 feet of straight chimney, go with rigid liner. If you have a taller chimney or one with bends in it, flexible liner is your best choice.

Rockford now offers Rock-Flex Deluxe smooth wall flexible liner that provides better airflow than standard flexible liner. Adding insulation when you install the liner will also help prevent the buildup of creosote by keep more heat inside the liner.

Rockford Chimney Supply has an excellent selection of chimney liner sizes and materials. If you would like to learn more, please give us a call at 1-866-708-2446. We look forward to hearing from you!

Chimney Liner Guide!

We have created a handy calculator to help you determine what size and type of liner you need for your chimney. Give it a try, and let us know what you think!

DIY Center

(AKA ‘The Rockford Files’)

From video tutorials to product walkthroughs, we have a variety of DIY resources just for you! Click the button below to view our entire library.


Need Help?

We are here to answer all of your questions




Our 316Ti flexible chimney liner and chimney liner components have passed the rigorous testing at the Underwriters Laboratories with best in class status and are UL Listed. So if you are looking for UL listed chimney liner sold directly to homeowners, then look no further than Rockford Chimney

Customer Testimonials

Back in July you gave me excellent advice re. sizing/purchasing a flue liner for the chimney associated with my wood stove. I'd like to thank you once agai... More

—AE Northfield, MN

A few weeks ago I ordered a chimney liner system for my fireplace insert. Your salesman recommended the liner system plus the insulating blanket. I just wa... More

—AH Happy customer

Just got around to installing my new smooth flexible liner and deluxe terra cotta cap (wow). The quality of your product is second to none. Very pleased an... More

—B.B. from Massachusetts

Thanks so much for the great tech service from Dennis, very knowledgable, friendly and proffessional.Your website is the best, beats your competition by fa... More

—Bill in Knoxville

Sue and Dennis, I received the final part of my order yesterday (the chimney cap that actually fits over the chimney chase). It looks wonderfu... More


Hello, I was shopping for an fireplace insert and called RCS to ask why they were so much cheaper than my local guy, the reply was " we sell thousand of th... More

—Chris, PA.