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What Is the Point of a Chimney Liner?

You have been searching tirelessly for the right historical house to make your new home, and you finally found the perfect one to buy. However, when you get the report from the Level 2 professional chimney inspection you need before you can make an offer on the home, you discover that the chimney is missing a liner. Since chimney liners were not mandated by most The Point of a Chimney Liner - Poughkeepsie NY - All Seasons Chimneylocal building codes before the 1940’s, it is not uncommon to see unlined chimneys in historic homes, and because of this, All Seasons Chimney is very familiar and experienced with bringing these chimneys up to modern safety codes and standards. For over 25 years, we have been providing professional chimney lining services to the residents of the Poughkeepsie area, and we can help you make the historical home of your dreams a reality by installing the best type of liner for the chimney. We are often asked why chimney liners are so important, and we would like to tell you more about the point of this essential chimney component.


The reason why most local cities and municipalities began mandating chimney liners in the 1940’s has to do with the results of tests given by the National Bureau of Standards (NBS) concerning the safety of masonry chimneys. According to the Chimney Safety Institute of America (CSIA), the NBS found that heat moved so quickly through an unlined chimney that it ignited the adjacent woodwork in less than three and a half hours. This is why the NBS stated that building a chimney without a liner was so unsafe that it was “little less than criminal.” All Seasons Chimney can protect your home from the risk of an accidental fire by installing a durable stainless steel liner inside your chimney to stop heat transfer from occurring.


Without a liner in place, the bricks and mortar joints of your chimney are at risk of damage by the corrosive and acidic byproducts of combustion. A chimney liner protects the masonry materials from being penetrated by flue gases, which can cause serious erosion damage. This type of masonry damage can deteriorate rapidly, and it can lead to dangerous hazards including heat transfers and carbon monoxide leaks. Our CSIA-certified chimney experts at All Seasons Chimney place your safety at the highest priority, and we can recommend the best liners to give your bricks and mortar joints the most ultimate protection against corrosive combustion gases.


A popular way to increase the energy efficiency of your home is to install a new gas insert inside your existing fireplace opening. To make sure your new fireplace insert works at its highest level of efficiency, it is important that the flue size matches the size of the insert. Typically, masonry chimneys are much larger than fireplace inserts, but All Seasons Chimney knows how to solve this problem by installing a custom sized stainless steel liner to give your insert a properly sized flue. We can also perform this service if you currently have a mismatched sized flue for your existing hearth appliance.

In order to function safely and efficiently, your chimney needs several important components, including the liner, in place. Contact us today at All Seasons Chimney to learn more about our professional chimney relining services.

All About Stainless Steel Chimney Liners

Your chimney needs several important components in place. This is in order for it work at its best levels of efficiency and safety. One of these components is the chimney liner. These are so essential that modern building codes mandate that every chimney be lined at the time of construction! Homes that were built before the 1940’s may have unlined masonry chimneys, but All Seasons Chimney can easily help you meet your local safety codes and standards by lining your chimney with a new stainless steel liner. We would like to tell you more about this type of chimney liner and why it is so important.

Stainless Steel Chimney Liners - Poughkeepsie NY - All Seasons ChimneyWhat does a chimney liner do?

The Chimney Safety Institute of America (CSIA) state that chimney liners serve three different functions. Your chimney needs to be lined to protect the combustible parts of your home. For example, the wooden structure around the chimney, from heat transfer. Without a liner in place, the CSIA reports a study that was performed by the National Board of Standards. They found that heat traveled so rapidly in unlined chimneys that adjacent woodwork was ignited into flames within three and a half hours!

A chimney liner also protects the bricks and mortar joints of your chimney from the corrosive gases of combustion. This keeps the masonry work safe from damage and deterioration. Finally, a chimney liner provides a properly sized flue for your heating appliance. Decide to upgrade your old masonry fireplace by installing a new fireplace insert? If so, your chimney is most likely going to be too large for the insert. This can cause draft issues and other problems. All Seasons Chimney can customize a stainless steel chimney liner to match the size of your new insert!

Will a stainless steel chimney liner work in my chimney?

There are three types of chimney liners – stainless steel, clay tile, and cast-in-place. One of the reasons why All Seasons Chimney specializes in installing stainless steel chimney liners? This type of liner works with all fuel types and in both masonry and prefabricated chimneys. Durable and strong, your stainless steel liner comes with a lifetime guarantee! So, you know you can count on it to keep your chimney working safely and efficiently.

Is it time to reline your chimney? Contact us at All Seasons Chimney to find out more information on our professional chimney lining services!