Why Reline A Chimney?

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Heat Protection

The masonry components of a chimney conduct heat. If the temperature is high – as in a chimney fire – enough heat can be transmitted through the brick or stone to ignite combustibles near the chimney – wood framing, sheetrock, lath, debris, etc.

A properly installed flue liner reduces the transfer of this heat and keeps the fire in the chimney. Many insurance companies and all new building codes require a lining before wood or coal can be burned. This is a major concern when you ask, “Why reline a chimney?”

Air Quality and Toxic Fumes

When asking why reline a chimney, you should know that all fossil fuels give off toxic or irritating fumes when burned. Some (oil and gas) contain high levels of carbon monoxide and nitrous oxide which are dangerous at certain concentrations. People with respiratory problems can be sensitive to these irritants even at low levels as well as to wood smoke and coal soot.

A flue liner assures that these exhausts are vented from the structure with no leakage through the casing or into the structure’s walls.

Chimney Deterioration

Chimney fires and some fuels (oil, gas, coal) can severely deteriorate a chimney after repeated use. Chimney fires dehydrate mortar so that the bond is loosened. Oil and gas “bathe” the chimney in very acidic water vapor – eating away at the interior.

Chimney deterioration chimneys.comIt is relatively easy to see deterioration when bricks and stone are loosened and fall from the top. Not so noticeable are the holes that develop between flues and in the casing walls. Furnace flues may become clogged by mortar and debris falling from the interior walls.

A pumped masonry liner repairs all of these holes, cracks and deteriorated mortar joints, rebonding the chimney into one secure structure.

Improper Draft

Flues can be too small or too large to draw properly. An inefficient flue often causes smoke or exhaust leakage into the structure, can cause furnaces and stoves to consume extra fuel and can increase creosote accumulation.

A round, insulated flue is the most efficient design for venting exhausts. A properly sized, insulate flue can increase efficiency dramatically. A round, insulated flue is the most efficient design for venting exhausts. A properly sized, insulate flue can increase efficiency dramatically.

Ease of Maintenance – Long Term Protection

Unlined chimneys are difficult to clean. Creosote and soot are trapped in recessed mortar joints and turns in the chimney. Sweeping a chimney usually does not remove all of these deposits, increasing the possibility of a future chimney fire.

As chimneys deteriorate, repair costs climb, repaired early, a chimney is far less expensive to line than one which requires substantial rebuilding first.

A properly lined chimney will minimize maintenance, allowing a brush to easily sweep it clean. Chimney fire risks are sharply reduced and the property’s assets grow. These are some reasons why you reline a chimney.

Golden Flue Pumped Masonry Liners

  • are certified for all fuels by Underwriter’s Laboratories and Warnock Hershey.
  • have the highest protection against heat transfer with the thinnest coating. This allows maximum draft with minimal material costs and the greatest number of options in appliance or fireplace usage.
  • are produced in multiple formulas for commercial, residential and historical applications.
  • Golden/Flue is a Virginia company with a national dealer network. Equipment and materials are produced and marketed to the entire industry exclusively for use in chimney restorations
  • are liners you can consider when asking why reline a chimney

Bruce Hoover
Installer of Golden Flue chimney liners

~ Asking for Chimney Information ~

After reading an article, you can ask a question about that article. Replies will come from Chimney Professionals, and sometimes from homeowners, who are giving their answer based on the information you provide. Remember that they are providing answers SIGHT and SITE unseen! 

CHIMNEYS.COM recommends that you use these comments to better inform yourself to discuss your chimney and venting issues with a professional whom you call to your home to evaluate the issue.

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