When the temperature level outside begins to climb, lots of people seek the cool comfort of indoor cooling. One type that we see all the time is the window air conditioner. Window ac units are a simple and economical means to cool a small area. Air conditioners come in different sizes, cooling capacities and costs. A lot of companies and office buildings have condensing units on their roofs.
AC units are one of those things that we see every day but hardly ever pay much attention to. An air conditioning unit is basically a fridge without the insulated box. It uses the evaporation of a refrigerant, like Freon, to provide cooling.
Air conditioners get rid of both heat and humidity from the air. If the system is too big, it will cool the room quickly, but only get rid of some of the humidity. This leaves the room with a moist, clammy feeling. An appropriately sized unit will get rid of humidity effectively as it cools.
Room air conditioners are ranked by their energy efficiency ratio EER, which is the cooling output divided by the power usage Learn More About It . The higher the EER, the more effective the air conditioner.
Portable air conditioners are not as effective as window ac units yet, and are only recommended when a window unit does not fit into a window such as casement or slide-out styles. Lots of people purchase an air conditioner that is too big, thinking it will provide much better cooling. However, an extra-large air conditioner is actually less effective, and wastes energy at the same time.