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Energy Saving Tips

Your air conditioning unit does more than cool the air.  It also conditions the air by removing dust and dirt as the air is drawn through a filter.  Air conditioning lowers the humidity, making the air more comfortable at any temperature.  These benefits, however can be costly.  In the Arizona desert region, air conditioning can account for 50% of your electric bill.  Because your air conditioner is a sizeable investment, you can save money and energy by carefully purchasing and operating your air conditioner.

Maintenance and Operation:

It is recommended by most major manufacturers to have your units serviced professionally twice a year by a trained heating and air conditioning technician.  Here are some tips that you can do to keep your system operating in an efficient manner.

  • A dusty filter reduces air flow.  Examine your unit’s air filters once a month and clean or replace filters when necessary.  Keeping your filters clean can cut energy consumption 5 to 15%.
  • Clogged drain channels prevent a unit from reducing humidity.
  • Coils can become clogged with dust.  Use a vacuum cleaner to remove dust from the interior heat exchanger; the exterior heat exchanger may be cleaned using water from a garden hose.
  • Programmable thermostats can program your unit to operate at a higher temperature when you are not at home, then lower the temperature during times you are home.
  • For central air conditioning units, for higher efficiency, your ducts should be properly insulated, especially those that pass through the attic or any other unconditioned areas.
  • Make sure furniture does not obstruct air conditioning vents.  Close off unused rooms and close the vents in these rooms.
  • Make sure all of your doors and windows are air-tight.  Weather-strip doors and windows.
  • Close all unnecessary openings such as fireplace dampers, doors and windows.
  • Set the thermostat to 78o F.  Setting the thermostat down to 72o F would increase your cooling costs 12 to 47%, depending on where you live.
  • Do not set the thermostat lower than the desired temperature when you first turn it on.  It will not cool faster; it will only cool to a lower temperature than is necessary and waste energy.
  • Set the fan speed on high except in very humid weather.  When it’s humid, set the speed on low; you will get less cooling, but more from the air, which will make it feel cooler.
  • Do not position heat-producing appliances, such as televisions or lamps, near the thermostat.  The heat they produce “fools” the thermostat and causes the unit to run longer than necessary.
  • Keep out the sun with louvers or awnings on the outside of your windows, or draw draperies, blinds, or shades indoors.
  • Limit heat and humidity tasks like cooking and laundering to early morning or late evening.
  • Use kitchen and bathroom exhaust fans sparingly.


  • Good conservation habits also help hold down electric bills.  For instance, only use your unit when the temperature is above 78o F.  Close windows and draw drapes and shades during the day to keep out the heat.  At night, open the windows and turn on window or attic fans to draw in the cooler air.  In addition, passive cooling techniques such as shading, ventilation, and vegetation can reduce your cooling needs.
  • A heat pump can be an alternative to the conventional air conditioner.  In its cooling mode, an air-to-air heat pump works like an ordinary air conditioner, but unlike an air conditioner, the heat pump can reverse during cold weather, absorbing heat from the outdoor air and transferring it indoors.  Though air-to-air is the most common type of heat pump, water-to-air and ground-to-air heat pumps are also available.  Water-to-air heat pumps exchange heat with either ground surface or well water.
  • Ground-to-air heat pumps are most cost effective when included in a new home’s design rather than as and addition to an existing home.
  • Fans can also help cool your home.  While fans cannot replace air conditioners, they can provide supplemental cooling, especially on mild summer days.  Substituting fans for air conditioners can save 60% or more in energy.
  • Evaporative coolers or “swamp” coolers also can cool your home.  An evaporative cooler works on the principle that it takes heat to evaporate water.  An evaporative cooler uses the outside air’s heat to evaporate water that is held by pads inside the cooler.  The heat is drawn out of the air through this process and the cooled air is blown into your home by the cooler’s fan.
  • An evaporative cooler costs less than an air conditioner and it also requires only about a quarter of the electricity it would take to run a regular air conditioner.  Due to the humidity they add to the air, however, evaporative coolers are only effective in hot, dry regions such as the southwestern United States.  An evaporative cooler also requires a large amount of water.  This may be a problem for areas where water has to be conserved.  The evaporative cooler may require more maintenance than an air conditioner.

 How can I improve my comfort?

  • Add insulation:  Your attic should have a minimum of R-30 insulation factor.  This equals about 9” of insulation.  Make sure all exterior walls are insulated.  If you have a basement or crawlspace, by insulating it you can save up to 10% of your heating energy every year.
  • Replace old outdated single-pane or damaged, leaky windows to energy efficient double-pane windows.
  • Efficient performance:  SEER Rating
  • Humidifiers.  During the winter months our homes are drier due to dry outside conditions.  Dry air makes your skin feel drier and colder because our skin regulates our body temperature through evaporation.  This is just the opposite of the summer, when humidity levels rise, we feel hotter.  You can balance the humidity in your home with an automatic humidifier which will add needed moisture to your home and also provide energy savings.
  • Air balancing and/or Duct Replacement.  Often, your comfort problems are not caused by your equipment.  Renovations or complete replacement of your duct system will sometimes solve comfort problems you may be having.  Having your technician perform Air Balancing can sometimes resolve minor problems you may be having.
  • High efficiency air cleaning.  High efficiency air cleaners will clean the air when your blower is operating, removing air-borne pollen, dust and dander from the air. 



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515 E. Carefree Highway, Suite 360
Phoenix, Arizona 85085

FAX: 623-535-5940

ROC 218834

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