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Title: Dangers Associated With Dirty Furnace Filters
Author: Bill Whitworth
Article:
It is surprising how many people are unaware of the dangers
associated with dirty furnace filters. Have you ever heard a
horrifying tale about a family that just barely escaped from a
bad situation with their lives, as a silent killer lurked
secretively in their home? The silent killer being referred to
here is CO or Carbon Monoxide. You could be putting yourself or
your entire family at risk if you are not changing or
maintaining your furnace filter as recommended by the
manufacturer. Your <a
href="http://www.home-air-care.com/furnace.htm">furnace
filter</a> is responsible for removing dust from the air as it
passes through your furnace. Over time, furnace filters become
dirtier and dirtier based upon how long it has been installed.
As the furnace filter continues to be overloaded with dust, a
resistance to or reduction in airflow may result.
Like most air conditioning and heating equipment, gas furnaces
and oil furnaces are both designed to work with a certain amount
of airflow, meaning that this airflow is vital for the furnace
to operate not only at the highest efficiency possible but also
to operate properly in general. The amount of airflow is
traditionally measured in CFM, which stands for Cubic Feet per
Minute. The quality of your <b>furnace filter</b> plays a part
in how this entire process works. A heat exchanger exists in
these appliances which contains a flame, and the necessary
airflow is responsible for passing over the heat exchanger on
the outside, picking up some heat from the flame on the inside
of the heat exchanger in the process. If a furnace filter has
remained in the system for so long that airflow is impacted, you
could be looking at a dangerous situation.
This is why changing out your <a
href="http://www.creativehomemaking.com/cleaning/furnace-air-filt
ers.shtml">furnace filters</a> is so important: As the amount of
airflow traveling over the heat exchanger begins to decline, the
operating temperature for the heat exchanger will begin to
increase. Heat exchangers are built to withstand a lot of heat,
but they can crack if the heat becomes too much for them while
exceeding the conditions for which they were designed. The head
exchanger can expand as it becomes hotter, and then contract
during the off cycle of the process. All of this expanding and
contracting can cause cracks and warps in the metal of the heat
exchanger, which can allow for combustion gases to mix
themselves with the oxygen in your home.
This is the good news: A properly designed furnace will have a
high limit switch, which can prevent the excessive heating of
your head exchanger. These limit switches are typically capable
of monitoring the temperature either at the source of the heat
exchanger or near it. If the temperature should happen to reach
a specific, predetermined point, the unit will automatically
shut itself off until it is reset manually.
Furnaces do seem capable of operating for a good long time based
on these automatic reset limit switches. This just means that
the furnace is operating based on the limits of its design. Most
furnaces will not operate until they are serviced following one
of these shut offs, meaning the furnace will not run until the
problem is corrected. Still, there are some furnaces that will
turn back on when the temperature of the unit has cooled
considerably.
You should not rely solely on the safety switch to protect
yourself from a potential disaster, because mechanical devices
are capable of failing no matter how safe they appear to be. One
of the best ways to reduce your risk of such a disaster is to
maintain your <i>furnace filters</i> properly based on the
provisions set forth by the manufacturer. This will probably
include cleaning the <a
href="http://www.meredy.com/nursetips/allergytips.html">furnace
filter</a> or changing it regularly based on manufacturer
guidelines and common sense.
About the author:
Bill Whitworth writes furnace filter and other home environment
health related articles for <a
href="http://www.webproducts.com">WEB Products, Inc.</a> The
company’s a popular Internet destination for furnace filters,
air filters, replacement filters and custom filters. WEB
Products has been helping customers improve their home air
quality since 1997.
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