All chimneys contain liners meant to prevent flue gases and extreme temperatures from damaging both your chimney and your home. Over time, a liner suffers a lot of wear and tear caused by the smoke exiting your home. Eventually, even the most well-installed chimney liner will need to be replaced.
When that time comes, you will find that you have a number of different liner types to choose from, including clay tile liners, cast-in-place liners, and metal liners. Understand the differences between each of these types to make the right choice. This article takes a closer look at metal chimney liners and outlines three key advantages they offer.
1. Less Labor-Intensive Installation
Most preexisting chimney liners consist of clay tiles, which are a durable and cost-effective choice when building a new chimney. Yet clay tiles don't make as great of an option when you need to replace a damaged or degraded liner. In order to remove the old liner and affix the new tiles, contractors usually have to partially demolish the chimney in order to access the flue.
As you can imagine, tearing down your chimney in order to build it back up again with new tiles takes a lot of time and labor. Things grow even more difficult when the chimney contains offsets or horizontal or diagonal portions. In that case, a contractor has to carefully cut down the clay tiles in order to fit them tightly into place.
Metal liners offer a much simpler and less labor-intensive installation. Workers carry sections of the liner up onto the roof, attach them together, and then insert the liner into the chimney. This method requires virtually no alterations to your chimney. In the majority of cases, preexisting flue tiles can simply be left in place.
2. Excellent Durability
Metal chimney liners possess durability levels second to none and can easily last as long as other types of liners. Of course, to get the best results, you'll need to select the right type of metal liner. The two main options are stainless steel and aluminum. In most cases, stainless steel will provide the greatest degree of resistance to both corrosion and heat.
Fireplace exhaust gases contain a lot of corrosive byproducts. At certain temperatures, these byproducts condense on the walls of the liner. Aluminum and non-stainless steel liners will soon succumb to corrosion, resulting in holes and other forms of damage. Only stainless steel can resist the destructive effects of acids and other corrosive substances.
If you use your chimney to vent a gas fireplace, an aluminum liner may yield better results. The exhaust produced by a gas fireplace has a much higher temperature - high enough that unwanted condensation rarely occurs. Therefore, lower-cost aluminum liners can be used without any negative side effects.
3. Adaptable to Different Chimney Types
Metal liners can successfully integrate with a variety of different chimney shapes. Straight chimneys can easily accommodate rigid metal liners. The smooth walls of rigid liners give them a greater overall efficiency, while also minimizing the build-up of creosote and other unwanted exhaust byproducts.
Yet rigid liners often don't work for chimneys that contain offsets and horizontal or diagonal portions. The kinks and bends of such chimneys can be better accommodated by a flexible metal liner. These corrugated liners can flex and bend enough to fit through awkward and tight fitting portions of a chimney. Not only that, but flexible liners tend to be much less time and labor-intensive to install.
A good chimney liner ensures that exhaust and smoke leave your home in the safest possible manner. For more information about the right type of chimney liner for your home, please contact the experts at R & R Fireplace And Chimney.