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from: Did you know? During the hottest months your AC can account for
up to 90% of your total monthly electric bill. When 1/7th of the
energy produced in the United States is used to air condition
buildings its important to understand how they work and their
impact on the environment.
The typical air conditioning system consists of evaporator
coils, a fan inside, a compressor, compressor coils and a fan
outside. The unit cools by using the refrigerant (Freon) to
transport the heat from inside the space to the outside air. The
heat is expelled into the outside air by the action of the fan
pulling air over the coils and the heat contained in the Freon
is transferred to the air.
The problem with the AC system is that in extreme heat, many
conventional air conditioners are unable to effectively transfer
their stored heat into the surrounding air. They are forced to
work harder and longer to cool the air in your home, shortening
their life and producing unreasonably high electric bills.
This problem can be further compounded if the AC system is
incorrectly sized for the application. Contractors often install
oversized AC units in order to avoid complaints, accommodate
future expansions, enable quicker cooling down of homes, and to
allow for lower cooling set points by homeowners.
Thanks to SEER, identifying the efficiency of your AC unit has
become very easy. SEER is the Seasonal Energy Efficiency Ratio.
This measures the cooling efficiency of your air conditioner or
heat pump. The higher the SEER number, the more efficient the
system is at converting electricity into cooling power.
If you are like many people and you have an older, less
efficient model such as one with a SEER rating lower then 8 then
it may be time to start shopping for a new AC unit.
If purchasing a new AC unit is a bit cost prohibitive then
consider improving the efficiency of your existing AC unit with
Cool-N-Save(tm) (http://www.coolnsave.com/). The Cool-N-Save(tm)
has been proven by Tulane University to improve the efficiency
of your AC unit - in some cases up to 30%. This improvement in
efficiency translates into real savings each month.
About the author:
Sam Greyhawk is an energy efficiency evangelist who works for
Huntington Beach, California. When you want to
bill remember
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