The Truth About Common HVAC Myths

The importance of HVAC systems in our homes cannot be emphasized enough. They are responsible for keeping us comfortable throughout the year. However, there are several HVAC myths that have been circulating for years.

These could lead to improper usage, maintenance, and, ultimately, expensive repairs or replacements. In this blog post, we will debunk some common HVAC myths. And provide you with the truth you need to know to keep your system running efficiently.

HVAC unit of house in yard

Bigger is Better

One of the most common HVAC myths is that a bigger system will cool or heat a space faster and perform better. This is not entirely correct. In fact, an oversized HVAC system will result in higher upfront costs, increased energy consumption, and uncomfortable temperature fluctuations.

HVAC systems are designed for specific spaces, and an appropriately sized system will provide better performance and efficiency. Before purchasing a new system, consult with an HVAC technician who can conduct a load calculation. This will determine the correct size for your home.

Turning the Thermostat Up Will Make a Room Cool Faster

Many homeowners believe that turning the thermostat up or down to extreme temperatures will cool or heat the room faster. However, this too, is a myth. HVAC systems work at a constant rate to maintain a set temperature. Turning the thermostat up will only result in longer run times and higher energy bills.

Setting the thermostat to a comfortable temperature and leaving it there will result in optimal comfort and energy efficiency.


You Don’t Need to Change Your Air Filters

It’s easy to forget about air filters, but this can lead to costly mistakes and repairs. Air filters help to trap dirt, dust, and other pollutants, preventing them from circulating through your HVAC system and your home.

Over time, air filters become clogged. This makes your system work harder to achieve the desired temperature. This can result in higher energy bills and even system breakdowns.

Be sure to change your air filters at least every 90 days or more frequently if you have pets or allergies. You can also always have a local company come out for a simple AC tune up. They can take care of everything you need.

Closing Vents Will Reduce Energy Costs

While it may seem like closing vents in unused rooms would increase efficiency and reduce energy costs, this can actually harm your system. HVAC systems are designed to work with a specific amount of airflow through the ductwork.

Closing vents can cause an imbalance in your system’s pressure, leading to reduced efficiency and, ultimately, increased energy consumption.

Instead of closing vents, consider using zoning techniques that allow you to direct airflow only to specific zones in your home. This will provide comfort where you need it without compromising your system’s performance.

HVAC vent

If It Isn’t Broken, Don’t Fix It

Regular HVAC maintenance is essential to ensure that your system is running efficiently and to avoid costly repairs. Neglecting to schedule routine maintenance may lead to decreased performance, higher energy bills, and even system failure. The last thing you want is to have to call a HVAC company to come out on a hot summer day for air conditioning repairs. It’s better to be proactive and schedule tune-ups twice a year to keep your system running smoothly.

Regular maintenance can help to identify small problems before they become major issues, prolonging the life of your HVAC system and saving you money in the long run.


Now that we have debunked some common HVAC myths, it’s important to remember that properly maintaining and operating your system can save you money and ensure your home stays comfortable year-round.

Don’t fall prey to false information and always consult a professional HVAC company for advice and maintenance. By following these tips and debunking these common myths, you’ll be well on your way to a healthy, efficient, and long-lasting HVAC system.

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