Have you ever wondered how an HVAC technician decides on what unit would work best for your home? There is some real science that goes into the determination. There are several brands of units that can be picked based on your own bias but there are other factors that should be thought about when choosing the size. Many people think you should just go with the size that is largest but that will actually be a big mistake. The size of the unit is decided when you look at the size of the house and the square footage you are trying to cool down. There are some deciding factors that need to be thought about when you determining your load for cooling.
Air Supply Heating & Air Conditioning Explains Load Calculations for Your HVAC Units
What is Load Calculation?: When you are dealing with your HVAC unit, load calculation is a large part in what size unit you should have installed. The load is what is the area of the home that needs to be cooled or heated. It also takes into account what the most efficient way to cool the home is. The calculation is made that takes other living factors into account and comes up with a size unit that is needed. It takes a trusted HVAC technician to look into the calculation and let you know what size unit is best for your home.
Load Calculation Factor Formula: When the technician is looking at the load there are several things to consider. They will look at the amount of living you do in the house. They may want to know the amount of laundry that you do on a monthly basis. They also want to talk about how much electricity you use and how many people are living in the house. These are all things that will create heat that will have to reduce when the air conditioner is used. The other aspects of your home that is considered is how many windows you have and which direction they are facing. The windows will allow sun to come in and that will increase the heat. They also look at the square footage of the home which is the starting point in getting a load calculation.
Weather Load Calculation Model: Now that they know what your home needs are, they have to evaluate the weather in your area. The summer weather plays a huge part in the load calculation of your air conditioning unit. They cannot take into account the very hottest day or you will end up with a unit that is too large. They have to balance out the temperatures in the summer months so that your unit can handle the heat but it can still not overuse energy. The calculation is made and then the unit size is determined.