So, it's time to purchase a new Air Conditioner for your home. These days, there is better technology to choose from when it comes to maintaining your indoor air tempurature. Most American homeowners simply go with the least efficient option: a single-stage air conditioning system. While this will still do the job, it simply cannot provide the level of comfort and energy efficincy that the more sophisticated systems do.
A single-stage air conditioner's compressor only works one level of operation -- cooling your home at full blast. Like a car, and air conditioner costs less to operate when it turns off and on less often. Each time the AC starts up, it costs more because of the greater energy needed to start up. A single-stage air conditioner turns on and off more frequently because it can only cool at one speed, then turn off once it reaches your thermostat setting. This also contributes to a more rapid wear and tear on your air conditioning system than with a two-stage or multi-stage compressor.