domenica 3 giugno 2007

How to reduce cooling costs..


  • Many of the steps you can take to reduce heating costs, such as insulating and sealing your home, will also reduce air conditioning costs.
  • Use fans instead of air conditioning (Fans make the air feel about 4 degrees cooler).
  • Turn fans off when no one is directly in the air stream of the fan. Fans do not actually cool the air; they help your skin to evaporate water more quickly, which cools you.
  • If you have more than two window air conditioners, it is usually more energy-efficient to install a central air conditioner.
  • Pay attention to efficiency ratings when looking for a new air conditioner.
  • Size your system properly. Calculate the heat loads.
  • If you have a portable air conditioners, be sure that it is vented outside. If it is vented inside, you are actually heating your home.
  • In geographic areas where summer nighttime temperatures fall below 75 F, open windows and use window fans to pull cool outside air into your home. Depending on the layout of your home, it may be best to only open certain windows and position fans so outside air is pulled in on one side of the house and interior air is pushed out on the other side of the house. It may be a wise choice to install a whole-house fan, which pulls air through your home and pushes it out through your attic.
  • Install awnings over windows and close window blinds or curtains to keep direct sunlight out.
  • Plant trees near your home. Choose locations that will shade your house during the afternoon. Even trees not directly shading your home will reduce local air temperatures.
  • Drink plenty of fluids to help your body cool itself.
  • Keep closets doors closed. This can save you up to 5% in heating/cooling and air costs alone.

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