Do I Need A Chimney Liner For A Gas Furnace

If it is a high efficiency 90 afue and above these systems have a completely separate ventilation system apart from the chimney so a chimney liner is not necessary.

Do i need a chimney liner for a gas furnace.

A stainless steel chimney liner that is properly sized for the stove furnace or fireplace will maintain or improve the venting performance draft. If it is older and not very efficient you most likely do not need a liner. You deserve to get the most from your appliance. When connecting a new regular type known as category 1 type gas appliances furnace water heater with efficiency slightly below 83 old chimney flue size might need to be decreased with a new liner.

A fireplace chimney should always be lined. Draft efficiency when it comes down to it you need your furnace functioning as efficiently as possible to ensure you get the warmth and comfort you need this winter. If you have a newer home with a skinny metal chimney flue these are typically already small enough for higher efficiency furnaces. The liner size is the number one factor for the appliance to burn properly.

What type of furnace do i have. 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. Not so with the other chimney. The chimney liner should never be undersized for any appliance especially to accommodate insulation around the liner.

A chimney professional can answer your questions and schedule an inspection for your home. It s not 100 percent required all the time. That being the case they easily vent out of the chimney and away from the home. The metal liner also ensures a seamless connection between the exhaust pipe and the chimney itself.

I would not use one if it wasn t lined. 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. I mean my house has got had an oil furnace for many years and never had a lined chimney. Do you have questions about your chimney and whether it needs a new liner.

Choosing the correct size liner for your appliance is crucial to ensure your appliance or stove is running properly. One for an oil furnace it s nice if it s lined. This is extremely important and serves various purposes properly sized chimney flue. Liners can help direct gases up and out of your flue so your system works better and faces less decay and deterioration.

When hot combustion gases enter the chimney they don t lose much heat they re still hotter than the surrounding air. 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.