A liner usually serves the purpose of protection. It can add an extra layer of thickness, as when your coat or skirt is lined, or it can be a protective layer between two things as in the case of your chimney liner, which is a layer of protection between your brick and mortar chimney and the corrosive components of the smoke that is released when you burn a fire in your fireplace. Smoke contains many chemical ingredients along with the water vapor that is released: benzene, formaldehyde, acrolein, and acetaldehyde just to name a few. Over time, these chemicals can eat away at the mortar and the bricks of your chimney, which can cause structural damage. This is one reason that a chimney liner is such an important part of your chimney’s anatomy.

Purpose of a Chimney Liner

The Value of Heat Shield - Harrisonburg VA - Old Dominion ChimneysThere are three main purposes that a chimney liner holds:

  • Protect the masonry from the harmful chemicals that could break it down (as stated above)
  • Protect the flammable items on the interior of your home from the high heat that your fire produces.
  • Make for a more efficient fire burning experience.

All three of these reasons are important because it’s making the fireplace experience safer and more enjoyable for the homeowner.

Types of Liners

There are several types of liners, including stainless steel and cast-in-place liners. Each of these has advantages and disadvantages. For example, stainless steel liners are safe and sturdy and can stand up to the heat and wear of gas appliances. Aluminum liners are inexpensive and are also good for medium efficiency gas appliances. Cast-in-place liners are really good if you want to stabilize an old chimney. There are disadvantages to these as well, such as cost and difficulty of installation.

One of the most common and reliable types of liners for a wood burning fire, however, are clay tile liners. Many older homes already have this type of liner. Even today, these liners are easy to get, inexpensive, and do a great job at protecting your chimney. These clay tile liners can last for up to 50 years! One of the problems, however, is that the clay tiles can sometimes crack or split apart. There’s a great solution that we can offer to help with this problem, and that’s Heat Shield.

What’s Heat Shield?

At Old Dominion Chimney Service, we offer Heat Shield. This is a product that works to seal the cracks and splits that can occur to your clay tile liners. Not only can it be used to repair, it can also be used to resurface your clay tile liners. This great product allows you to keep your clay tile liner in great shape and keeps your chimney’s interior protected from the negative effects of burning a fire. Let us come over and check out your chimney liner soon!