Wintertime is the time to curl up with a good fire in your fireplace or wood stove. The Nassau County Department of Health reminds residents that although fires can be cozy and picturesque, they can also be dangerous if not operated and maintained properly.

One of the most serious fire hazards is the build-up of creosote on stovepipes and chimneys. Creosote is a substance which is formed when wood smolders and does not burn completely. To help reduce creosote build-up, burn small hot fires using seasoned hardwood and make certain sufficient oxygen is available to keep the fire burning properly. Also, make certain the damper on a stove or fireplace is open while the wood is burning to prevent the collection of explosive gases.

Never use gasoline, charcoal lighter or other fuels to light or relight a fire, nor soak a home-rolled newspaper log in gasoline or kerosene since they can cause an explosion.

Screens should be installed around fireplace and open-door wood stoves to prevent sparks from flying into the room.

Children and pets should not be allowed to run or actively play near the fire.

Other important safety tips are:

• Keep plenty of sand or water, or a fire extinguisher, near the fireplace or stove.
• Make sure the fire is completely out before going to bed or leaving the house.
• Make sure smoke and carbon monoxide detectors are located in several areas of the home, and periodically test the batteries to make sure they are working.
• Develop and practice an escape plan from all areas in the house.
• Use a metal container with a tight-fitting lid for ash disposal. Dispose of ashes only after they have cooled.

Check the stovepipe or chimney at least once a month for buildup of creosote. Clean them when accumulation exceeds one-quarter inch. Use a specially designed wire brush or hire a professional.

For additional information, call the Nassau County Department of Health at 571-3737.