If you buy an air conditioner that is too big, then your room will get cold fast much faster. This also means that it will have to turn itself off and on a lot to maintain the temperature you have set on your thermostat. This will increase your energy bills and make your home feel damp.

Another drain on your air conditioner is the filter. We can't say it enough, you have to change your filter or clean it (depending on what kind you have) often. At least check it once a month and if it's dirty replace it. Some homes can go 3 months without cleaning and some will require a once per month cleaning. Your AC needs to be able to circulate the air through your home easily. If the filter is clogged it pulls the efficiency of your air conditioner down.
Cost.
Air Conditioning - What Happens If It Is Sized Wrong? is the biggest con of having air conditioning. Your air-con absorbs electricity like a sponge absorbs water, and does it fast. Before you know it, all those 10-hour periods you leave your air-conditioner on adds up into hundreds of dollars, making your blissful smile turn into a frightful frown when the electricity bill arrives. Not only that, the maintenance and repair costs if your air conditioner breaks down can add another hundred or so dollars to your budget. Is it really worth it? Imagine how many romantic candlelight dinners with your spouse that can be bought with the amount of money you spend leaving the air conditioner on.
OIt is important for you to be generous enough to pay up for a job well done. Contractors will guide you into giving you solutions with regard to buying an air conditioner.
Cooling Your Home In The Absence Of Ac can do is respect their time and effort.
Not only browsing online can help you find good air conditioner prices. Check on customer reviews online to find how others like the units that you are looking at. Also, check with your friends, neighbors, and coworkers to see what they have and how they like it.
The first number to check is the BTU (British Thermal Unit). This is the cooling capacity of the appliance and it begins at 5000. Checking on the BTU is important especially for single-room air conditioners. 5000 BTUs is recommended for rooms with 300 square foot floor area or less. Larger rooms like 700 sq. ft. floor area may require more than 12000 BTU air conditioner units. However, do not be misled because high BTU does not equate with efficiency. If your room's floor area is just 300 sq. ft. then it is unnecessary to have a 10000 to 14000 model. Excess BTU will just cause excessive humidity.
Normally if no maintenance is done, then an AC loses its 5% efficiency each year. Every unit comes with its rated efficiency and normally works efficiently for about 14-15 years. With
Three Signs You Might Need Ac Repair , air conditioner will continue to work to its maximum efficiency during its working life.