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Chimney Lining & Relining

Chimney Lining & ReLiningChimneys that were built without flue liners should be lined for safety’s sake. Regardless of their condition, unlined chimneys are always improved with the addition of a liner.

Chimney Liners serve three main functions


Chimney lining protect your house from the heat radiating from the fireplace or flue.

Creosote formation is the unavoidable by product from burning wood. The danger with creosote is the 450˚f ignition point — consider the average wood stove produces gases leaving your fireplace at 300˚f to 900˚f—causing a chimney fire of up to 2100˚f.


Chimney Lining protects the masonry from corrosive byproducts.

In the tests it was determined that if the flue gases were allowed to penetrate to the brick and mortar, the result would be a reduction in the usable life of the chimney. The flue gases are acidic in nature and literally eat away at the mortar joints from inside the chimney. As the mortar joints erode, heat transfers more rapidly to the nearby combustibles and dangerous gases such as carbon monoxide can leak into the living areas of the home.


When installed correctly, Chimney Liners provide a correctly sized flue.

Improperly lined flue can produce an unsteady draft, leading to a down-ward flow of smoke entering your home. Chimney lining provides a correctly sized flue for optimum efficiency of wood stoves and gas or oil furnaces. Having your chimney relined will not only increase the efficiency of your fuel burning appliance, but more importantly, it will assure that your chimney is safe for use.

M-Flex Chimney LiningMetal chimney liners, usually of stainless steel or aluminum, are primarily used to upgrade and repair existing chimneys. These liner systems are U.L. tested and listed, and if properly installed and maintained are extremely safe and durable. Traditional masonry flue tiles cannot handle the acidic moisture created by your furnace, boiler, or hot water tank. Stainless steel is suitable for woodburning, gas, or oil applications, while the aluminum is an inexpensive alternative for certain medium efficiency gas applications only. It is usually required that high temperature insulation be used in conjunction with the chimney lining for safety and performance considerations.