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Stainless Steel Chimney Liner Pipe


What is stainless steel chimney pipe? Most masonry chimneys have a terra-cotta chimney flue liner inside the brick or block exterior of the chimney. Todays appliances can cause serious problems for masonry chimneys. Because of this, stainless steel chimney pipe is used to reline the masonry chimney. This stainless steel chimney pipe provides a protection to the masonry chimney.

Without the stainless steel chimney pipe inside the masonry chimney, there are usually problems. Acidic residue and excessive moisture break down masonry. When this happens cracks can form which can allow toxic gases to enter the home. When deterioration starts taking place in a masonry chimney blockages can form in the chimney. Blockages in a chimney can spell disaster for a home and those who live inside it.

On of the best solutions for a deteriorating chimney flue liner is a stainless steel chimney pipe. Chimney Liner Depot sells the best stainless steel chimney pipes on the market today. Give us a call for assistance with your next chimney relining project. Call now – 1-866-286-1062

Pellet Stove Chimney Liner


Do pellet stoves need chimney liners? If you have an existing chimney that you would like to vent a pellet stove into you should install a stainless steel chimney liner. Why? In order for an appliance to run correctly it should vent into a chimney or pipe that is sized correctly. Most pellet stoves have 3 inch vent sizes. When installing a chimney liner for a pellet stove there is one thing to remember. If the chimney length is greater than 15 feet you should just up to a 4 inch chimney liner. In this case you will need to go from the 4 inch chimney liner tee down to 3 inch.

Click here to purchase a chimney liner for a pellet stove.

Oil Furnace Chimney Liner


The incomplete by-product of combustion of fuel oil is unburned carbon & sulfur dioxide simply known as “oil soot”… Oil soot accumulates on the walls and at the base of the chimney, which warrants it be inspected and cleaned annually as suggested in the National Fire Protection Association’s 211-CODE.  All though this is not a law, and the code has not been adopted in some states, the code was designated to help homeowners safeguard their home heating unit and contents from “puff-back” which can create an oil mist that settles throughout the home resulting costly professional cleanup.

A big misconception on many homeowners’ part is that the oil service company takes care of the chimney. The oil burner company may shovel out the base of a brick chimney and brush out the connector pipes, but they will not clean the chimney. Most furnace technicians fail to mention anything about the chimney leading homeowners to believe everything is fine. Some oil furnaces service men even tell the homeowner that the chimney is OK without inspecting the entire chimney, which includes going to the roof and inspecting the interior as well as the exterior masonry (if applicable), flashing, chimney cap, etc.

The National Fire Protection Assoc. 211 codes state that “chimneys must be inspected and cleaned as necessary annually” – just like the oil service man services the furnace annually, so should the chimney system be serviced annually. Many homeowners also may not be aware that the chimney’s interior, when not maintained, will decay and break down. For example – just like neglecting your teeth and not having them checked annually may result in cavities. (Or if you don’t change the motor oil in your car for 50,000 miles, you can be sure something in the motor will breakdown.) It’s the same theory with your chimney. As stated earlier, the incomplete by product of combustion is soot, which contains carbon and sulphur. Sulphur, when mixed with rain water (from a missing rain cap) or moisture from the flue gases themselves is absorbed into the flue tile and starts a deteriorating process called flaking or spalling. Just like tartar on your teeth, annual brushing will remove these soot deposits and keep the deterioration process to a minimum.

In metal chimneys the interior lining is made from single-ply or 2-ply stainless steel, which will not rust, but will corrode from the oil soot’s sulfuric acid reaction over time if not cleaned annualy. This corrosion makes small pinholes, which will ruin the integrity of the liner, which will not be able to hold the by-products of combustion. When a clay lining in a masonry chimney flakes or a metal chimney’s insides corrode, they are unable to contain the heat and the flue gases, thus creating a potential fire and health hazard.

Reline your oil furnace chimney flue with the best chimney liner available today. Reline your chimney with a Flex King Chimney Liner. Remember that once a chimney liner is installed in an oil furnace chimney flue, that you must maintain it annually. It still needs to be cleaned even though there is a stainless steel chimney liner installed.


    *Note: If you have a terra cotta clay chimney
    flue lining, be sure to measure the true length and width of the
    inside of your chimney flue space.

    *If there is a terra cotta clay flue liner, does it protrude out of
    the top of the chimney at least 2 inches? If there are at least 2
    inches and the terra cotta clay is in good condition, you will use
    our stainless steel, terra cotta top plate that has a 1 1⁄2inch edge
    that goes all the way around (like a shoebox lid).

    *If your terra cotta clay flue is in bad shape at the top, you may
    need to just take a hammer and tap all around that terra cotta,
    taking it away to make the surface flat at the top of your chimney.
    In that case, you will simply use the flat top plate that comes with
    our liner kit.

    *Note: If you have a terra cotta clay chimney
    flue lining, be sure to measure the true length and width of the
    inside of your chimney flue space.

    *If it is on the back of the stove, is it parallel with the back of the stove or is it at an angle, like 45 degrees?

    *If it is at an angle you will use an insert stove adaptor (an insert liner kit) rather than a two-part tee with cleanout cap.

    Usually pellet stoves have an exhaust hole id of 3 inches. However, if you are going up more than 15 feet to the top of your chimney you need to use a pipe and/or flex liner that is 4 inches diameter.

    If you are only venting a hot water heater then the exhaust hole diameter is probably 3 inch diameter. If it is 3 inch diameter and you are going up more than 15 feet to the top of your chimney, you must use a 4 inch diameter flexible liner or ridged pipe for proper draft. We also suggest to go ahead and use a 4 inch diameter flexible liner or ridged pipe even if the total length is 15 feet or less.

    Not the depth or any other dimension inside your fireplace.
    Most gas log fireplaces require an 8 inch liner kit or rigid kit. But do not assume that is the case for the gas log fireplace kit you are installing. Obey the requirements for that specific unit that are in your installation/instruction manual.