When buying a new air conditioning unit, it is important to first ask the question which air conditioner is most energy efficient and to do some research to ensure you get the best unit that will burn less energy than the rest.
We want energy efficiency in an air conditioner because for obvious reasons, we want to save money. We all know that it can be expensive to run an AC.
The bigger it is and the hotter it is, generally the more it costs to run.
So if we can reduce that running cost even by a few pennies per hour, the overall saving can work out to be substantial over the course of a summer season.
Of course it's important to choose the right AC for your needs. That means not over-extending your budget to buy a powerful monster when you only need to cool a relatively small space.
On the flip side, it also means not skimping on size and power when you have a large space to cool and an inadequate cooler will be unable to keep pace with the heat.