Do I Need A Chimney Liner For A Gas Boiler

To check look at the top of your brick chimney flue.

Do i need a chimney liner for a gas boiler.

Local codes and the international fuel gas code require proper venting and chimney liners for flue gasses to be vented into the outdoor atmosphere. Do i already have a chimney liner. Yes you need a liner if the chimney is exposed to even 1 outside wall below the roof you can t vent an 80 furnace into it. If going to a smooth wall liner it will additionally improve your draft by up to 20 for gas and up to 15 for oil burning appliances.

Wood and coal burning fuels must be vented in a separate chimney liner and not. New chimneys may require relining to suit the fuel type being used a gas flue liner may not be suitable for other fuels. Chimney flues that are unlined oversized or deteriorated can usually be lined with a ul listed lining system approved for gas appliances. Chimney systems that predate 1965 will often require a modern lining solution for the following reasons.

A stainless steel chimney liner that is properly sized for the stove furnace or fireplace will maintain or improve the venting performance draft. The simplest option is to use a ready made external chimney that is a modular design of the factory production and then it must be wisely insulated. If you have one you will see another metal flue sticking out a little bit higher than the original brick opening. What happens is the flue gas is not as hot as the old furnace so the flue gas can t get out of the chimney before it cools off below dew point and condenses inside the chimney and is acidic.

If you have an older home with a wide brick chimney you may need a liner depending on how efficient your furnace is. A properly sized chimney liner. For more information about the uses or the installation of chimney liners please contact flame. Without a chimney liner corrosion can cause your chimney to deteriorate and allow harmful gasses such as carbon monoxide to seep through into your living space.

Homeowners with gas or electric inserts most likely do not need a new liner because those types of fuel don t produce enough heat to damage a masonry chimney. The flue may have lost integrity and can leak smoke into rooms or other part of the building. A chimney professional can answer your questions and schedule an inspection for your home. Do you have questions about your chimney and whether it needs a new liner.