Chimney liners such as brick and clay, will eventually deteriorate over a period of time, as all things normally do and this can lead to carbon monoxide poisoning or even cause a fire in your home if it is not replaced.
These chimney liners can now be replaced with alloys of stainless steel. Chimney liners can be either flexible or rigid and they are typically cylindrical in shape, but because rigid liners are much more difficult to install than the flexible liners it is recommended that you should choose a flexible liner when you are considering replacing your chimney liner.
The size of the liner is very important as you will need to fit the liner into the existing chimney as well as have it perfectly matching with the size of the exhaust, for the appliance that you are going to vent.
By measuring the size of the exhaust of your appliance you will be able to determine the size of the liner you will need to use. You must also measure the size of the chimney and allow at least a one inch excess for the inside dimensions than the size reline pipe that you are going to use.
Before you install the liner make sure that there are no obstructions within the flue. You can use a probe to determine the total length of the flue and also to ensure that the liner will fit.
This probe will also alert you of any obstructions that will need to be removed before you start your installation. To install the chimney liner starting at the top, insert inside the chimney the flexible piece of metal pipe and keep moving downwards until you reach the point of attachment between the chimney and the vent pipe.
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