If you are shopping around for a new air conditioner, you are probably looking for the best unit for your comfort and your dollar. Efficiency information is an incredibly important metric you should research and pay attention to when choosing a new unit. An energy efficient AC unit will not only save you money after you purchase it, but will also keep you comfortable inside your home. 

The SEER rating is the metric number used to describe the efficiency of a unit and is the number you should ask about before purchasing a unit. There is a lot that goes into the SEER rating and understanding it can be hard to comprehend, especially for a homeowner. We are going to walk you through what the SEER is and 4 key things to know about SEER ratings. 

What is SEER? 

Before we get into the specifics, let’s start with the basics and understand what SEER is. Seasonal Energy Efficiency Ratio, or SEER, measures an air conditioner’s maximum efficiency rating. It is calculated by the annual cooling output divided by the total energy input. You will get a good idea about the performance of the unit and should be factored into your decision of a new air conditioner. There is a standard scale determined by the Air Conditioning, Heating, and Refrigeration Institute. Most air conditioners fall between a 13 and 21 SEER.

How SEER is Determined

All air conditioning units undergo a standardized test designed by the Department of Energy. With an assumed indoor temperature of 80 degrees and 50% relative humidity and an outdoor temperature of 82 degrees. It is important to note that the true efficiency of a unit will change based on your home and its specific conditions. You may also have other factors that can change the efficiency such as windows, insulation, and ductwork.

Minimum Rating for AZ

The minimum SEER rating is set by the Department of Energy and is based on national regional standards. Arizona has a minimum SEER requirement for all new air conditioners of 14. Just because a unit is 14 SEER does not mean it is not efficient. Likely, the unit currently serving your home is far less than a 14 SEER and a new unit will be much more efficient.

Determine Future Energy Use

If you are operating your home on a budget, you can be sure to use the SEER rating as an indicator of future energy use. You can use the SEER because it compares energy output to the energy consumption of a unit. Knowing the BTU, cost per Kwh, and a little simple math, you can figure out the average cost to run your unit during the warmest times of the year.

Loss Of Efficiency 

As your air conditioner ages, it becomes less efficient. In turn, this lower efficiency will decrease the SEER rating. Routine preventative maintenance will keep your unit working as efficiently as possible and reduce your energy costs. Understand, it is completely normal for your system’s efficiency to decrease over time.

If your air conditioner is over ten years old and you are noticing an increase in necessary repairs and your energy bills, you may consider a new unit. The SEER rating can be a determining factor when selecting a new unit and knowing what rating you are seeking will help you with your decision. 

2C’s Cooling & Heating provides quality air conditioning installation to the entire East Valley. Our experts can assess your home and cooling needs before providing you with the best AC unit option. With over 15 years experience in the HVAC industry, you can trust our team to offer you an honest estimate, professional installation, and exceptional customer services. We also offer repair and maintenance services should your system require it. We work hard for your comfort!

Are you in the market for a new AC unit?

About 2C’s Cooling & Heating

2C’s Cooling & Heating proudly serves the East Valley, Arizona with high quality HVAC services. We are here to serve you and all of your cooling and heating needs. Our team is prepared to tackle whatever cooling project you have.