6 Most Asked Questions About HVAC Systems [to empower your HVAC decisions]

In the realm of home comfort, HVAC systems play a crucial role. Whether it's keeping your house warm during chilly winters or cool during scorching summers, understanding these systems is essential for every homeowner. However, navigating the world of HVAC can be daunting, especially with the myriad of questions that arise. In this comprehensive guide, we'll address the top asked questions about HVAC systems to provide clarity and empower you to make informed decisions for your home.

1. What does HVAC stand for?

HVAC stands for Heating, Ventilation, and Air Conditioning. These systems are designed to regulate indoor temperature, humidity, and air quality to ensure comfort and health.

2. How often should I change my HVAC filter?

It's recommended to change your HVAC filter every 1-3 months, depending on factors such as the type of filter, household size, and presence of pets. Regular filter changes promote better air quality, improve system efficiency, and prolong the lifespan of your HVAC unit.

3. What size HVAC system do I need for my home?

The size of your HVAC system depends on various factors, including the size of your home, insulation, climate, and number of occupants. It's crucial to have a professional HVAC technician perform a load calculation to determine the appropriate size for optimal performance and energy efficiency.

4. How can I improve the efficiency of my HVAC system?

There are several ways to improve the efficiency of your HVAC system, including:

  • Regular maintenance: Schedule annual maintenance to clean coils, check refrigerant levels, and ensure proper airflow.
  • Programmable thermostat: Install a programmable or smart thermostat to regulate temperature settings and reduce energy consumption.
  • Seal ductwork: Seal leaks in ductwork to prevent air loss and improve system efficiency.
  • Upgrade to energy-efficient equipment: Consider upgrading to ENERGY STAR certified HVAC equipment for significant energy savings.

5. What are common HVAC problems and how can I troubleshoot them?

Common HVAC problems include:

  • Poor airflow
  • Uneven heating or cooling
  • Strange noises
  • High energy bills Troubleshooting steps may include checking air filters, inspecting ductwork for leaks, cleaning coils, and ensuring thermostat settings are correct. However, it's advisable to seek professional assistance for complex issues.

6. How long do HVAC systems typically last?

The lifespan of an HVAC system varies depending on factors such as maintenance, usage, and quality of installation. On average, HVAC systems can last between 10 to 15 years with proper care. Regular maintenance and timely repairs can help extend the lifespan of your HVAC unit.


Understanding the ins and outs of HVAC systems is essential for every homeowner. By addressing the top asked questions about HVAC units, we hope to provide clarity and guidance for maintaining optimal comfort and efficiency in your home. Remember, regular maintenance, proper sizing, and professional assistance are key to maximizing the performance and longevity of your HVAC system. If you have further questions or need assistance, don't hesitate to reach out to a qualified HVAC technician.

Here at Kennon Heating & Air Conditioning we want you to enjoy your home to the fullest. That starts with making sure that the air in your home is clean and at the perfect temperature for you. If we can help in any way, please contact us via email or phone (678) 251-9776. Stay cool, stay cozy.

We proudly serve all of North Metro Atlanta to North Georgia, including Cumming, Alpharetta, Atlanta, Braselton, Buford, Cobb County, Dacula, Dawsonville, Dultuh, Flowery Branch, Gainesville, Hoschton, Jefferson, Johns Creek, Peachtree Corners, Lawrenceville, Norcross, Oakwood, Sugar Hill, Suwanee and more.