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Why Should I Install a Chimney Liner

Why Should I Install a Chimney Liner

Jun 19th 2020

This Article has been approved by our on staff NFI Certified Specialists & Master Hearth Professionals

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When installing a fireplace insert in your existing fireplace it is now required that you install a chimney liner system to vent the appliance. In addition to your installation being compliant with local code, there are many other benefits to installing a stainless steel chimney liner.

What are the benefits of a stainless steel chimney liner?

There are many benefits to installing a chimney liner system, but lets get into the details of the 3 main benefits a chimney liner will provide for you and your home.


Chimney flue tiles are often damaged by corrosive gasses in your chimney. These corrosive gasses erode the masonry materials in your chimney leaving behind gaps which could allow dangerous carbon monoxide or sparks from the fire to enter into your home. Installing a stainless steel liner will prevent your chimney from allowing those noxious gasses from entering your home. It will also prevent heat and sparks from reaching combustible materials inside your home, which can create a fire. Often times installing a chimney liner will also put an end to a smoking fireplace or smelly down drafts.

Improved Appliance Performance

Having a good draft will significantly improve the efficiency of your fuel through more complete combustion. A stainless steel liner will improve your chimneys draft because hotter gasses draw better than colder gasses.

Reduce Dangerous Creosote Build Up

Excess creosote build up in chimneys is the cause for approximately 15,000 house fires each year. When smoke in a chimney is allowed to cool below 250 degrees which it causes the combustion gasses to condense, combine, and solidify forming the tar like substance creosote. Because insulated chimney liners keep the combustion gasses hotter all the way up and out your chimney, they allow for less condensation and most importantly less build up of dangerous creosote.

Chimney kit
Chimney Liner

The advantages to a chimney liner is improved draft by sizing the liner to the appliance, hotter core temperatures, improved safety, easier cleaning, and longevity.

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In short, chimney lining systems are designed to secure your chimney with a thick layer of stainless steel. This stainless steel is specifically formulated to withstand the severe conditions present within your chimney. The liner will not only withstand the corrosive environments found in gas and oil flues, but it will also stand up to the high heat present in wood and coal flues. The patented gas tight interlock system is unsurpassed in strength and is UL listed for these applications.

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