Single stage AC is an energy saving device that produces less noise. On the other hand, a variable speed AC system is a more expensive device that allows more control over fan speeds and also more flexibility. Single stage units are also more efficient than the variable ones, so if the money is not an issue for you then this type of unit may be the right choice for you. However, it is important to note that the efficiency of one-stage units is also determined by factors such as the design of the condenser, the amount of refrigerant in the cooling loop and also the size and design of the refrigeration and air conditioning systems. So, it is important to know which category your AC falls under before making any purchase decision. Now, that you have this basic information you can go ahead and look at some of the advantages of single stage ACs:
The primary advantage of single stage ACs is that they produce less turbulence at the source of the AC. In other words, they produce less noise at the output of the AC than the variable units. This reduces the outside noise pollution and therefore translates into better performance of the whole system. This is also a very important factor if you are planning to install the unit near a window or a large window that lets a lot of external air in. Single stage ACs are therefore a good option for such locations.Find expert advice about Single Stage and Variable Speed ACs read here.
The main drawback of using single stage ACs is that they are generally more expensive than their variable counterparts. However, this should not put you off as they still tend to be cheaper than the central air conditioners. If cost is a major consideration and if you do not mind having the unit installed in your house then by all means go in for a single stage unit. On the other hand, if you think you will use the machine at a location where the outside noise pollution is high then variable speed ACs are the best option. The only thing you need to be careful about here is to make sure you buy an AC that comes with a warranty. The warranty will cover not just the unit but also any labor costs involved in installing the unit in your house.