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Ac guide COMPLETE GUIDE TO ROOM AND CENTRAL AIR CONDITIONERS The right air conditioner can keep costs down as the mercury rises Last updated July Window air conditioners Portable air conditioners Central air conditioning The split ductless solution Keep c

COMPLETE GUIDE TO ROOM AND CENTRAL AIR CONDITIONERS The right air conditioner can keep costs down as the mercury rises Last updated July Window air conditioners Portable air conditioners Central air conditioning The split ductless solution Keep cool and save Air Conditioners With temperatures rising one thing ? s for certain your utility bill will too Now ? s a good time before the thermometer hits triple digits to assess your cooling needs for the summer At the very least you should check and clean your equipment whether you cool your home with central air room air conditioners or good old-fashioned ceiling fans If you ? re replacing an old room or central air conditioner the choices on the market today are likely to Cbe more energy e ?cient than what you have But don ? t buy too little or too much ??getting a cooling system that is the wrong size is the most common mistake people make regardless of the type Underestimate your cooling needs and you could be hot and sticky and still increase your electric bills Buy more capacity than you need and you may wind up with a cool damp space To keep your cool get the best performing and most reliable equipment Consumer Reports has new Ratings of window air conditioners and this year we talked to readers about the reliability of their central air conditioning systems We learned what made readers hot under the collar and which systems cooled when called upon During our research and testing we discovered which units to buy and which to avoid Top-rated window air conditioners Although more and more homes have central air conditioning about million window units are sold each year Our latest tests of small medium and large window air conditioners found that all were excellent at cooling What distinguished the best from the rest was quiet operation convenient controls and whether they kept working under brownout conditions All of our top picks exceed federal Energy Star standards and use at least percent less energy than conventional models Those energy-savers often include other features such as timers digital displays remote controls and directional vents which coax the most comfort from the machine How to choose a room A C Before going to the store determine the size of the space you need to cool and where you ? ll place the unit An air conditioner that's too small won't cool the room One that's too big will cool so quickly that it won ? t have time to remove enough moisture leaving your room cold and clammy Get the right size When calculating the size of the air conditioner you'll need take into account not only the size of the room to be cooled but whether the unit will be placed in a window that gets shade or direct sunlight the height of the ceilings and even the part of the country where you live The Association of Home Appliance Manufacturers has a worksheet on