Debunking 10 Common HVAC Myths

Debunking 10 Common HVAC Myths

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HVAC systems are an intrinsic part of every home in today’s date. These systems are known to provide us with comfort all around the year and maintain proper air quality. However, there are several myths surrounding the HVAC systems that homeowners hear from time to time. 

While a few myths are true, many of them are false. These myths often lead to misinformation, confusion, and so on. In this article, we will help you know the truth by debunking some of the most common HVAC myths. 

10 Common HVAC Myths Debunked 

There are several myths surrounding the HVAC myths that homeowners believe. Believing these myths lead to HVAC damage, high energy costs, etc. Check out the most common myths here! 

1. Running A Fan Will Help to Cool Down the Room Faster

One of the most popular myths is that running the fan will help to cool your room faster. However, this is partly true and partly false. Turning the fan on does not cool down the room. Fans only circulate the air present in the room evenly. But when the fan runs along with the air conditioner, it circulates the cold air around the room properly. 

2. Regular HVAC Servicing Will Damage the System

Many homeowners believe that servicing the HVAC system on a regular basis will cause damage and reduce its lifespan. This is because the parts of the heating and cooling system are disassembled and cleaned regularly. But this is a completely false statement. 

Over time, the components in the HVAC system accumulate dirt, dust, debris, and so on. When dust, debris, etc., accumulate inside the system, it reduces efficiency and longevity by a notch. Make sure that you get the servicing done at least twice a year to ensure an efficient performance from the cooling and heating system. 

3. Changing the Air Filters Once a Year Is Enough

HVAC systems are equipped with air filters that work to filter the dust, debris, and so on from the air entering the home. A common myth that circulates around is that you should only change the air filters once every year. 

According to most HVAC experts, the air filters of the air conditioning system must be replaced once every 2 to 3 months. This is necessary to make sure that the system works efficiently while keeping energy consumption at a minimum. 

4. Completely Cover the Outdoor AC Unit

Covering the outdoor unit of the air conditioner is a great way of preventing damage from snow during the cold months. However, completely covering the unit can cause moisture to get trapped inside and damage the system. Instead of blocking the unit completely or keeping it uncovered, place a breathable cover to ensure that the moisture can disperse easily. 

5. Consistent Thermostat Temperatures Helps to Save Energy

Thermostats are an integral component of our home and help to regulate the temperature properly. It is true that setting the thermostat at a consistent temperature will reduce energy consumption. This is because inconsistent or drastic temperature changes often cause the HVAC system to work harder and consume more energy than required. 

6. Installing A Programmable Thermostat Is a Good Idea

Several homeowners prefer to rely on a programmable thermostat to regulate the temperature of HVAC systems. While many people do not think about it, a programmable thermostat is a great idea for lowering the energy consumption of your home. In this system, you can set the temperature for multiple timeframes. 

The thermostat will then adjust the HVAC system according to the settings. Additionally, it can turn off the air conditioning system when you are not at home and turn it back on when you are back. 

7. Getting A Bigger AC Installed Will Cool the Home Faster

A common misconception among homeowners is that it is better to install a bigger air conditioning system than required. However, this is a complete mistake and will result in high energy bills. Bigger air conditioner systems will cool the room faster, but the system will turn on and off constantly, resulting in the AC working harder than normal. This will increase the consumption of energy by a great amount. 

8. Closing the Unused Vents Will Save Energy

Energy-saving tips are nothing less than a lifesaver, especially in the current world scenario. However, closing or covering the vents in rooms where you do not need the air conditioner is never a good idea. Instead of saving energy, it can cause it to consume more by making the system work harder. 

9. Setting the AC At a High Temperature Is Better Than Turning It Off

A few people think that setting the air conditioner at the highest setting is better than turning it off. People believe that it helps to reduce energy consumption. But this is not a good idea. Even if you are setting the AC at the highest temperature, it still operates and consumes energy. On the other end, turning the air conditioner off will prevent it from consuming any electricity. 

10. Do Not Get the AC Serviced Until It Breaks Down

Last but not least, a few homeowners think that the air conditioning system does not require any maintenance or repair as long as it is working. But it is a big misconception, and air conditioners require regular maintenance. Proper servicing allows the system to work efficiently while lasting for a long time. 

Getting the air conditioner repaired after it breaks down is a huge hassle. Additionally, repairing a broken-down AC costs a significant amount of money, without a doubt. 

If you are looking for air conditioning repair service, Dallas has some great HVAC technicians, and we recommend you hire one of them to help with your situation.


HVAC systems are quite complicated, and there are quite a few myths regarding them. Debunking these myths is important to make sure that people do not make mistakes and pay more than they have to. Running an air conditioner efficiently will help you save money and help the environment. If you have any questions or queries regarding HVAC systems, contact a professional to clear up your confusion.

*This article is based on personal suggestions and/or experiences and is for informational purposes only. This should not be used as professional advice. Please consult a professional where applicable.


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