Air Conditioner Reviews usually take BTU and EER numbers into account. BTU stands for British Thermal Units, and these numbers can range from 5,000 to 18,000. The higher the BTU of an air conditioner, the more powerful it is at cooling. But it also increases the cost of the air conditioner. Normally, the BTU of an air conditioner required for cooling a room is calculated by multiplying the square foot area of the room by 35.

EER stands for Energy Efficiency Ratio. These numbers indicate the amount of energy they consume. An air conditioner with a higher EER will use less energy and hence will save money on electricity bills. EER numbers range from 8.2 to 10.5.

The brand leaders in the air conditioner market are Carrier, Kenmore, Whirlpool, Samsung, LG, Sharp, Panasonic and Friedrich. All are available in a wide range of BTU and EER ratings. Carrier air conditioners are by far the best. They are known for their extreme noiseless function, quick cooling and long lives of compressor and condenser. Carrier air conditioners are also the most expensive air conditioners in the market. Some of the newer Carrier models have replaced the environmentally harmful Freon-22 with Puron, a less polluting liquid.

Kenmore air conditioners also have excellent reviews in the air conditioner market. They are known for their high cooling capacities and extremely well advanced EERs, which cut electricity costs. Also their designs are quite sleek and contemporary, giving them the added edge over other air conditioners.

Whirlpool and LG also have good reputations, but they do better business in Asia. They are both reliable, trusted brands with good quality air conditioners at a comparatively lower price.

Due to the tremendous competition in the market of air conditioners, each brand spends millions of dollars in researching and perfecting new features every summer. Friedrich air conditioners have devised a money-saver feature, which saves electricity bills by making the fan move in synchronization with the cycle of the air conditioner itself. Most companies now use dehumidifiers and fragrances in their air conditioning ducts to lend them an added appeal.