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posted: 9/22/2012 6:00 AM

Chimney care is often ignored, yet critically important

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  • Jeffery Peterson of Potomac Services performs a visual inspection of a chimney flue in Sterling, Va.

      Jeffery Peterson of Potomac Services performs a visual inspection of a chimney flue in Sterling, Va.
    Associated Press File Photo/2009

  • Jeffery Peterson of Potomac Services inspects a free-standing fireplace in Sterling, Va.

      Jeffery Peterson of Potomac Services inspects a free-standing fireplace in Sterling, Va.
    Associated Press File Photo/2009

  • Jacques Leccia of Lindemann Chimney in Lake Bluff cleans the chimney of suburban home this past spring. Leccia is a Chimney Safety Institute of America certified chimney sweep.

      Jacques Leccia of Lindemann Chimney in Lake Bluff cleans the chimney of suburban home this past spring. Leccia is a Chimney Safety Institute of America certified chimney sweep.
    Associated Press

  • Chimney sweep Jeffery Peterson cleans the flues on a roof in Sterling, Va. Peterson is certified through the Chimney Safety Institute of America.

      Chimney sweep Jeffery Peterson cleans the flues on a roof in Sterling, Va. Peterson is certified through the Chimney Safety Institute of America.
    Associated Press File Photo/2009

 
Associated Press

People are drawn to a fire, whether they're roasting marshmallows around a campfire during the summer or cuddling up near the fireplace in the dead of winter.

And just as you take precautions outdoors, there are things you should do to make sure your fireplaces and chimneys are safe.

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Fires built in fireplaces or wood stoves leave a gummy residue, called creosote, that can stick to the lining of your chimney. Creosote -- created by soot, smoke, gases and other particles -- is flammable, and can be the source of a dangerous chimney fire.

Between 2005 and 2008, an average 26,900 fires annually were blamed on fireplaces, chimneys or chimney connectors, according to the Consumer Product Safety Commission.

Experts recommend that chimneys be inspected every year by a certified chimney sweep and cleaned if necessary. The cost can range from $100 to $300 or higher.

Cleaning a chimney is not a do-it-yourself project, says Kit Selzer, a senior editor at Better Homes and Gardens. It's a dirty job, and it also can be risky, especially if you have to climb onto the roof.

Chimney sweeps are trained to determine whether chimneys are structurally sound and whether they need to be cleaned, said Ashley Eldridge, education director for the Chimney Safety Institute of America. They also will make sure the chimney is up to code, especially important in older houses.

Selzer recommends that homeowners use the institute's website, www.csia.org, to select a certified chimney sweep. To become certified, a sweep must pass two tests: one on the inspection process and tools, and the other on the international residential code, as it applies to chimneys, Eldridge said.

"Each job is different," said Christina El-Hage, a certified sweep with Pride Clean Chimney Sweeps in Bethesda, Md., but there are some basics.

"We're looking to make sure the flue is fully safe," she said. "We're making sure there are no third-degree burns of creosote on the lining."

Chimney sweeps also check to see if there are any birds or animals in the chimney, or anything that would block the flow of smoke. They also check that there's no water coming in.

Cleaning the chimney involves removing creosote.

When thinking of chimneys, El-Hage says, don't forget the furnace. She says too many people focus only on the chimney attached to the fireplace. "Yes, they can catch on fire, but we're not dealing with a deadly gas, carbon monoxide," she says, as is the case with furnace chimneys.

Whether they burn oil or gas, furnaces vent carbon monoxide outside into the atmosphere, and those chimneys, too, need to be inspected. "It's the No. 1 reason why we are in business," El-Hage said. You can choose to use a fireplace, she said, but "you have to use your heat."

There are steps you can take at home to reduce creosote buildup and the risk of a chimney fire.

Foremost is picking dry wood to burn, Eldridge said. To determine whether wood is sufficiently dry, "take two pieces and bang them together. You get almost a ring as an indication its ready. If not, it's a dull thud," he said.

Dry wood also will appear gray on the surface and have cracks on the end.

Don't throw pizza boxes or other trash in the fireplace, El-Hage said, because it causes a thicker smoke, which lowers the temperature in the chimney. "The hotter the fire, the better the burn," she said.

While many people use a newspaper to start a fire, she recommends a fire log or fire starter instead.

And to reduce the risk of a spark flying out of the fireplace, use a screen and stay in the room while the fire is burning. "The last thing you want to do is build a big old fire and leave the room," Eldridge said.

Also needed: a smoke detector, carbon monoxide detector and fire extinguisher.

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