HVAC units are integral to one’s home. Hence, there are a number of things that ought to be kept in mind if you are looking at peak efficiency from your HVAC unit. Let us have a look at those factors that we need to keep in mind. They are the following: The design and type of ductwork The quality of the refrigerant is also an important consideration. It is better to use a refrigerant that is environment friendly. The location of the outdoor and indoor unit must be selected carefully. As far as the outdoor unit is concerned it should be placed at a distance from the bedroom so that you are not disturbed by noise. Similarly, the position should be such that the airflow is not obstructed. When it comes to the positioning of the indoor unit it must be located at a place which is most suited. The position of the air filter must be such that it is easily accessible. It is important because if air filters are difficult to reach then the act of changing the air filters at regular intervals can be neglected. Lastly, importance need to be given to the efficiency of the HVAC unit and only a unit that is highly efficient need to be bought so that you can save on your energy bills in the long run.