Alternatives to Replacing a Flue Liner in a Fireplace


Over time, the mix of foundation shifting, weather and creosote buildup break down the mortar joints that hold the chimney flue in place. More importantly, the flue protects the rest of the house from exposure to extreme heat or embers. When the flue deteriorates, you can no longer use the fireplace until the flue is fixed. Using alternative methods of repair, rather than replacement, could save thousands of dollars.

Repair the Chimney Flue

  • The failure of the mortar joints between refractory liner sections is the cause of not having use of the chimney. Replacing this mortar will fix the problem and allow use of the chimney for at least another 20 years. Chimney repair services take a closed cell foam torpedo attached to a winch and pull it through your chimney as they pour a special type of silicon-based mortar that is fire resistant to over 3000 degrees Fahrenheit, well exceeding International Residential Code requirements. As the torpedo is pulled up the chimney, the torpedo vibrates, pushing the mortar into the joints and filling them completely. After the torpedo has gone through the chimney and mortared the joints, the chimney cap is installed and the fireplace is ready for use again.

Install a Ventless Gas Fireplace

  • Ventless gas fireplaces require a gas line and proper clearance from combustibles per the manufacturer's recommendations. These units are 99.9 percent efficient, operating at close to complete combustion, using almost all of the chemicals to make a fire. This creates little carbon monoxide and prevents sickness or injury from CO poisoning. The ventless gas fireplace is inserted into the old chimney space. Block off the chimney from below. Block if off from above by installing a sealed chimney cap, and discontinue using the flue.

Remove the Chimney

  • If the chimney only vents the water heater and the furnace, vent both of these units outside through PVC piping as it is more efficient. Take the chimney down below the roof line, sheet and shingle over the hole. Deal the chimney in the attic using spray foam insulation to prevent cold drafts to the rest of the house. With this process, you need never worry about chimney problems again.

Related Searches


  • Photo Credit chimney pots image by green308 from
Promoted By Zergnet


You May Also Like

  • How to Replace Clay Flue Liners

    Clay flue liners are hollow, rectangular tiles that are stacked up and mortared together inside of a chimney. They provide a smooth...

  • How to Repair a Chimney

    How to Repair a Chimney. Like all physical structures exposed to the outside, chimneys are often in need of repair. Traditionally, chimneys...

  • How to Install a Class A Metal Flue

    Because poking stovepipe out a window is not an option, any wood stove, oil furnace or other appliance with the capacity to...

  • How to Install Chimney Liners

    How to Install Chimney Liners. Lining your chimney is necessary, especially when your chimney is old, and the lining is no longer...

  • How to Repair a Chimney Flue Crack

    A chimney flue vents gases and smoke from the hearth into the air. The flue serves as a ventilation and exhaust system...

  • How to Replace a Flue Pipe

    Flue pipes are made out of single-wall galvanized sheet metal. The galvanized coating protects the sheet metal from rusting. Flue pipes transport...

  • How do I Replace a Manual Damper in a Fireplace Flue Pipe?

    If you have a fireplace, you need to have a damper to help regulate the flow of air inside the duct or...

  • Chimney Repair Options

    Chimneys can stand for many years without needing any repairs. A chimney that's in need of repair, however, can pose a health...

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!