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Sources of Poisonous Carbon Monoxide: Fireplace Flames
Your fireplace is often the heart of your living space, offering a cozy
spot to relax, spend time together, and enjoy the warmth and beauty of
flames. But as a potential source of poisonous carbon monoxide, a fireplace
must be made safe by ensuring proper installation and careful maintenance.
Carbon
monoxide (CO) is an invisible, odorless gas that can cause serious illness
when inhaled; at excessive levels, it can be fatal. Homeowners must be
aware that every fireplace, whether wood burning or gas fueled, generates
CO, and every precaution must be taken to protect loved ones against its
potential hazards.
How does a fireplace produce carbon monoxide?
A fireplace produces carbon monoxide when the combustion process
is incomplete. Even with newly designed, manufactured models, including
fireplace inserts, the combustion rate is not 100%; hence, CO is still
produced. Proper installation and use of a fireplace is crucial in minimizing
the level of CO in the house.
Installation and Venting
As a source of carbon monoxide, fireplace models that run on
natural gas are as equally dangerous as the wood burning type. Many natural
gas fireplaces are sealed and vented directly to the exterior of the home,
which greatly reduces the chance of CO poisoning. The height and path
of the venting is specified within the owner’s manual of each unit,
and must be followed exactly for optimum safety. The installation services
of a professional are highly recommended.
Ventless fireplaces are not advisable due to the high risk of carbon
monoxide poisoning associated with them. Although designed for use in
homes, ventless fireplaces do not have adequate measures to reduce or
redirect the CO that they produce.
With wood burning fireplaces that require operational doors, proper installation
of the flue or chimney liner is the most important factor. This pathway
allows the dangerous CO emissions from your fireplace to rise and be eliminated,
enhancing the quality of the air in the house. A well designed and professionally
installed chimney provides the necessary airflow, creating efficient combustion.
Proper Use of a Fireplace
Not only does keeping the dampers open help create airflow, but
burning seasoned wood also cuts down on CO emissions. With sufficient
airflow and good wood, your fireplace will achieve the optimum combustion
levels and the lowest levels of carbon monoxide.
Regular maintenance is essential in order to rid the chimney from dangerous
build-up. Accumulation of creosote residue can reduce the level of combustion.
Proper cleaning and thorough inspection of your fireplace and chimney
should be an annual occurrence; however, in the case of substantial use,
more frequent cleanings are required.
Tips
on Fireplace Operation
To reduce the risk of carbon monoxide poisoning due to inhalation,
be sure to follow these tips:
DO
- Have the fireplace installed by a licensed professional
- Have your chimney designed and installed following the proper codes
- Burn seasoned hardwood
- Keep the dampers adequately open
- Install carbon monoxide detectors near your fireplace, and check them
regularly.
- Have your chimney cleaned and inspected at least once a year
DON’T
- Install a ventless fireplace
- Overload the chamber of your fireplace
- Burn items that create a low level of combustion
As a source of carbon monoxide, a fireplace should be recognized as a
potential hazard. Safety must be practiced. Enjoy the coziness and warmth
of your hearth, and cherish peace of mind, knowing that your loved ones
are safe.
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