Causes of Flue Liner Damage & How to Identify And Repair It

chimney flue liner installation

One of the important parts of a chimney is none other but a flue liner.

It is an important aspect of a chimney, one that shouldn’t be missed at any cost.

A flue liner is responsible for protecting combustibles from getting really hot and eventually burning down the entire chimney shaft. After all, if a well-built chimney has a durable interior, there’s a significantly less chance of a fire damage from taking place.

A strong flue liner prevents such incidents from taking place.

In this article, we are going to discuss how different factors play a role in the deterioration of chimney flue lining.

We will also discuss when it’s the best time to get it repaired or replaced.

What Are the Causes of Flue Liner Damage?

There are many scenarios in which a flue liner can easily get damaged. If not repaired in a timely manner, it can lead to house fires. Some of the common reasons for a flue liner damage includes the following:

  • If the chimney is improperly constructed.
  • If there’s corrosive byproducts of combustion such as flue gasses within the chimney area. When left unattended, this corrosive substance can lead to acidic reactions which may speed up deterioration of mortar joints.
  • When the flue lining is of the wrong size. It can lead to creosote development. When creosote mixes with moisture, it can speed up the flue liner damage process.

What Are the Obvious Signs Flue Liner is Damaged?

One can’t simply tell when a flue liner is damaged; but there are a few obvious signs which indicate otherwise. For example, the firebox within the fireplace may contain bits of masonry debris which clearly shows there may be problems with the flue liner. While you can perform a self-inspection, it is always advised to hire a professional chimney inspection service or a reputable chimney repair company to provide you with a full inspection. However, a few obvious signs of flue liner damage include:

Pieces of Tile in Fireplace or Hearth: If you find pieces of clay tile in your fireplace or around the hearth, it could mean that your flue liner is deteriorating and shedding material.

Rust and Corrosion: For metal flue liners, rust and corrosion are indicators of damage. If you notice rust stains or corrosion on the inside of the chimney, it’s a sign that the liner might be compromised.

Smoke or Odors Inside Your Home: If you notice smoke or strong odors inside your home when you use your fireplace or heating system, it could indicate that the flue liner is damaged and not effectively directing smoke and gasses out of the chimney.

Reduced Draft: A damaged flue liner can lead to a reduced draft, causing smoke to back up into your home rather than being drawn up and out of the chimney.

Visible Debris or Buildup: Excessive creosote buildup or other debris in the chimney can be a sign of a damaged flue liner, as it may not be properly containing or guiding combustion byproducts.

Water Leakage: If you notice water stains on the walls or ceiling near the fireplace or chimney, a damaged flue liner could be allowing moisture to penetrate your chimney and potentially causing further deterioration.

Flaking or Pitting: Look for signs of flaking, pitting, or scaling on the interior surface of the flue liner. This could indicate that the liner is deteriorating and may need replacement.

Unusual Noises: If you hear cracking or popping sounds coming from the chimney while using your fireplace or heating system, it could suggest a damaged flue liner expanding and contracting due to heat.

Read More: Should I Be Cautious About Carbon Monoxide Poisoning?

When is the Best Time for Flue Liner Replacement?

The best time for replacing a flue liner is when repairing it won’t get the job done. In the following situation, the best thing to do is to find the most affordable replacement solution for a damaged flue liner.

At Alpha Clean Air, we believe flue liners built with stainless steel liners are the best option.

Here’s why:

  • Stainless steel are resistant to corrosion
  • They require less repairs and the liner protects your masonry
  • They are relatively easier to install compared to traditional chimney liners
  • They are far easier to install compared to clay tile liners making the installation less expensive
  • The round shape of the stainless steel liners make them easier to clean & maintain
  • It forms an insulation between the flue liner and the chimney walls.
  • You require fewer repairs and the chimney masonry remains well protected.

Are you planning to get a flue liner replacement for your chimney? Do you want to make sure your chimney space is well protected? In that case, Alpha Clean Air provides you with the best chimney flue liner service in all of New Jersey. Dial (888) 502-3828 today & get consultation.

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