An air conditioner works on the mechanism of evaporative science. A chemical compound called the refrigerant changes its form from liquid to gas and then changes back to its liquid form while passing from the evaporator unit to the compressor and then to the condenser unit of the air conditioner. There is also the expansion valve that is located in between the coils of the evaporator and the condenser as the fourth component.

The objective of using the air conditioner is to circulate the inside air in such a way that the temperature of the incoming air to the room is much lower than the air that had been sucked out. The job of an ac is then to reduce the inside temperatures to pleasant levels as well as with some upgrades and modifications, clean and dry the indoor air.

The two different types of air conditioners are the window ac and the split ac. The inverter ac is a form of split type but more energy efficient thereby helping save power and electric bills. The window ac as the name suggests is the one that is fitted onto the window with all the main components present inside the same metal box.  Split ac’s typically have the evaporator chamber connected to the room and the compressor & the condenser unit fitted in an open space outdoors. Split ac’s are more effective in their performance because the evaporator and the condensing units are much bigger than that in the window ac. Also split ac’s circulate and distribute cooled air more effectively than the window ac.

A 1.5 ton split ac will be much more effective when compared to a 1.5 ton window ac. The ac price of the former will be at least 10-20% more than the window ac. However, it makes sense to spend some extra amount to buy the former because of the performance factor and also in the long run the energy efficient split ac will help reducing your electric bills whereas the windows ac will consume more power and lead to higher bills.

Both the spilt and window air conditioners are rated by the Bureau of Energy Efficiency. The higher the stars the better the air conditioner!  EER is an important terminology associated with air conditioners. EER or energy efficiency ratio is a measure of the cooing that an ac can provide per watt of electricity the ac consumes. The Bureau awards higher stars to ac’s with higher EER. This means that a 5 star air conditioner will cool better compared to a 3 star one.  Generally window ac’s are rated 2 or 3 stars whereas the split ac’s are rated at 3 stars and above. This undoubtedly is a stamp of guarantee that the split air conditioners are more powerful and efficient performers.

Lately most of the brands have launched the inverter models of the spilt versions that have been proven to save electric bills up to 30 % when compared with usage before fitting the inverter model. The air conditioner pricefor these models is much higher than the normal direct split ac’s.