Are You a Victim? Common Air Conditioning Myths

You’ve probably heard a couple of these common misconceptions about your air conditioning unit, but now you can use these tips to improve your use and experience with your air conditioner!

Myth #1:

Your HVAC system does not pull air from the outside, rather, the supply register is located inside your home and pulls the air from the house. The air circulates through your HVAC system and cools down through the coils, then is redistributed into your home through your vents. To combat the pressure of pulling the air from your supply, there is a return that helps balance this.

Myth #2:

Turning your thermostat to 68 degrees is not going to make your home reach 74 degrees sooner than if you set your thermostat to 74 degrees. Your air conditioning system cools the air in the home at roughly an 18-22 degree temperature split. This means, if your home is at 80, the air will come out around 60 degrees. It will continue to cool the home at this temperature difference until the thermostat reads that the area is now at 74 degrees, then, it will signal to your unit to shut off. Therefore, lowering your thermostat isn’t going to cool your home faster, because the temperature split will never go higher than what it can perform. If anything, you are just risking your AC over-cooling your home and running up your electric bill higher than you wanted to.

Myth #3:

A common mistake that homeowners make is waiting until their system completely fails before calling your HVAC company out. Your AC system has a lot of components all running at the same time. Sometimes a part can fail and your system may still work, so you might not know that anything is wrong with it. Depending on the part that is failing or failed, there could be a domino effect on your system causing additional parts to break. This is going to cause a costly repair because you will then need to fix several parts rather than just the one that originally started failing. That is why it is important to have your AC system inspected at least twice a year, once in the Spring and once in the Fall season in Arizona.

Myth #4:

Our final myth about your HVAC system is a common misconception that buying a bigger system will cool your home more efficiently than a smaller size. We see this frequently with house-flippers and people who are trying to improve the efficiency of their HVAC unit, but it is actually not helping you if you are incorrectly sizing the unit. Engineers determine what tonnage your HVAC system should be relative to the size of your home. When you oversize or undersize the unit, the AC system is going to cool or heat the home unevenly and incorrectly, which can lead to hot and cold spots. By oversizing a system you end up lacking an even, comfortable cooling. It is true that your home will meet temperature quicker with an oversized unit, however, it is going to frequently turn off and back on, which will cause the inconsistency. In fact, you can short-cycle your system by oversizing a unit because the temperature swings cause your AC system to rapidly start up and shut down.

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