Over Sized Air Conditioner
Bigger is not better when it comes to conditioned comfort.
Why an oversized air conditioner is bad news.
An oversized air conditioner doesn't mean cool comfort for you. It means higher first costs, higher electricity bills, and a home that's uncomfortable to be in.
Oversized air conditioners run up your utility bill.
An oversized unit short-cycles (runs for shorter periods of time than it should), and uses more electricity than a properly sized unit. Air conditioners operate more efficiently the longer they run continuously, and should be sized so they don't turn on and off frequently on hot days.
An oversized air conditioner can cover up other problems.
Ducts that are leaky or have constricted air flow, improper refrigerant charge, and dirty coils and filters can make an air conditioner work much harder than it should. An oversized unit may be able to put out cold air even when these problems exist. But these conditions can mean costly breakdowns and the spread of pollutants into your living space.
Oversized air conditioners cost more to buy and don't last as long.
Don't pay extra for an air conditioner that's too big for your house. The larger system will cost you hundreds of dollars more and give you fewer years of service-and bad service besides. An oversized air conditioner makes your house clammy. A unit that's too big can't dehumidify the air effectively because it runs for only short periods at a time. The indoor coil never gets cold enough to do its job of removing moisture from the air.
An oversized unit will leave your home cold and clammy, especially in humid climates.
Oversized air conditioners are noisy. The bigger the air conditioner the faster the air rushes through the ducts and grilles. Often grilles are not designed for the larger unit, so the noise will get even louder as air tries to force its way through small openings.
There is no happy medium with an oversized unit. It delivers noisy blasts of frigid air, then shuts off while moisture builds. On hot days, it will do this repeatedly, making the home more and more uncomfortable as the day passes.
