Stainless steel or aluminum chimney liners?

Stainless steel chimney liners are the most commonly used for fireplaces and ovens. There are also liners made out of aluminum. These two types are classified as metal flue liners.

They can be found in any home improvement store, even as kits.

Rigid or flexible

Stainless steel liners can be either rigid or flexible. Rigid liners are used for straight chimneys. These liners are good for chimney that have a diameter between 3 and 10 inches. Double or triple wall chimney pipes must be taken into consideration before purchasing rigid liners.

Flexible stainless steel liners are good for chimneys with diameters between 2 and 10 inches. Their corrugated surfaces make them much easier to clean and maintain. This type of liner can be found in different sizes and lengths and are especially good for wood stoves and ovens.


Stainless steel liners can be used in chimneys that burn many types of fuel including wood, gas and oil. This metal can withstand different burning temperatures of different fuels.

Aluminum chimney liners

This type of liner is good only for chimneys that reach lower temperatures. The type of fuel used is very important. Less corrosive gases must be used when working with aluminum liners.


Both types of liners are especially cost effective when used to repair old furnaces. When searching for a liner, you must choose the own suitable for your needs. Take into consideration the fuel you will use, the type of fireplace and the temperatures it reaches when burning the fuel. Metal liners are easy to install and can be purchased at any home improvement store.


Metal liners minimize the infiltration of carbon monoxide in your home. Stainless steel liners will reduce the buildup of creosote. These liners must be flexible because the residue created when burning wood is easily flammable. 

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