When choosing a machine for central air-conditioning, size is of considerable importance. This sizing however, should be done by a pro. When dealing with a central air-conditioning system for your home, make sure that the fan turns off in addition to the compressor, that is, do not use the central fan for circulating the cool air, use circulating fans for each room instead.
Following are a couple of cooling pointers which will save your a/c systems from breaking out in a sweat.
1 Use whole house fans. These help keep a cool temperature by dragging cool air through the whole house and tossing out the hot air through the attic. Whole house fans work most effectively during evening time when the outdoors is cooler than the indoors.
2 In the summer months, your thermostat should ideally be set as high as possible. The closer the temperatures outside and inside are, the less your cooling bill will be! If your thermostat is set at a colder setting, your cooling rate will slow down, the temperature will fall to an uncomfortable level, plus your cooling costs will mount.
3 Let your fans rate be high, unless of course the weather condition is especially humid, in which case you will be much better off setting it at a lower rate.
4 Use an interior fan to complement your window AC. This will give your AC a helping hand and disperse the cool air much better without needlessly increasing your electrical power expenses.
5 Putting your lights, TV sets, and so on near your thermostat is a big no-no. Heat from these appliances can be detected by the thermostat making the AC run needlessly long Page .
6 Its ok to put in trees or shrubs to shade your AC, but make sure they do not get in the way of the air flow. An AC unit working under shade is known to make use of almost 10 % less electrical power than one operating directly under the sun.