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7 Common Air Conditioning Myths

June 24, 2022

By Air-Master Heating & Air Conditioning


Though it was not the technology we use today, heating and cooling has been around since the 1800’s. As the HVAC profession grew, different companies, technicians, and homeowners have performed different practices to solve problems. Your heating and cooling systems are complex technology and most occurrences require a trained technician to properly do the job. The complexity of the profession resulted in common myths and misconceptions. In this blog, we will help you separate fact from fiction regarding your air conditioning system.

Myth: Duct tape is a good product to seal air ducts.


Contrary to the product name, duct tape is not meant to be used on your ducts. The best way to temporarily fix air leaks is by using mastic sealant or metal tape. A technician can properly seal your air ducts as typically not a simple task!

Myth: Bigger air conditioners are better.


A larger air conditioner will not be able to cool your home quicker, and will cost more money upfront and later down the road. Your air conditioner should be properly sized for the space it needs to cool. Too big of an air conditioner can decrease energy efficiency and cause high humidity levels in your home. Contact Air Master for help picking out the right size air conditioner for your space.

Related Article: Is My AC Running Efficiently?

Myth: You don’t need to be knowledgeable about HVAC, my technician can handle it.


While your Air Master technician is more than happy to handle your heating and cooling, it is in your best interest to be familiar with your system. This is important for many reasons, one being you will notice when your system is working abnormally. Being knowledgeable about your air conditioning system can help you save on a costly breakdown.

Myth: Ceiling and floor fans cool the room.


Ceiling and floor fans make the room feel cooler, but do not actually decrease the temperature. Fans create a wind chill effect, which is why homeowners are able to increase their thermostat setting in the summertime. We recommend using fans to increase your home temperature to save money on your utility bill!

Myth: Closed air vents save money on heating and cooling costs.


Closing your air vents creates pressure within your system. The air has to go somewhere, resulting in leaks and possible other damage to your system. Closing your air vents will actually cost you more money.

Myth: Maintenance is only needed when your unit breaks down.


If it ain’t broke, don’t fix it, right? Wrong! Much like your doctor check ups or car oil changes, your HVAC system needs maintenance twice a year. Preventative maintenance can help avoid costly breakdowns at inconvenient times, because your technician is able to ensure your unit is functioning properly.

Myth: Your technician is in charge of changing your air filter.


Your technician is happy to change your air filter, but odds are you don’t see your technician every three months when your filter needs to be replaced. To maximize energy efficiency, air quality, air flow, overall comfort, and your unit’s lifespan you should change your air filter every 90 days. Depending on factors such as indoor pets, likely sooner.

Unfortunately, not all things you read on the internet are completely truthful. We are here to ensure you are knowledgeable about your heating and cooling system. If you previously practiced or believed these myths were true, that is okay! Just take note of the actual truth and begin practicing this instead. Feel free to give us a call this summer with any questions, we are here for you 24/7 with our emergency air conditioning services!

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