Clearing the Air on HVAC Myths


When it comes to keeping your home comfortable and energy-efficient, there are numerous myths surrounding air conditioning and heating systems. At Mannix Heating & Cooling, we’re dedicated to providing accurate information and dispelling common misconceptions. In this blog post, we’ll debunk some prevalent myths about HVAC systems.

Myth #1: Closing vents in unused rooms saves energy

  • Fact: Closing vents can actually increase the workload on your HVAC system, causing it to work harder and use more energy.
  • Proper airflow is essential for efficient operation, and closing vents disrupts the designed airflow through the system.

Myth #2: Bigger is always better when it comes to HVAC systems

  • Fact: An oversized system will cycle on and off more frequently, leading to increased wear and tear, reduced efficiency, and uneven cooling or heating.
  • A properly sized HVAC system, based on factors like square footage and insulation levels, is crucial for optimal performance and energy savings.

Myth #3: HVAC maintenance is unnecessary if the system seems to be working fine

  • Fact: Regular maintenance is essential for maximizing the lifespan and efficiency of your HVAC system.
  • Neglecting routine maintenance can lead to various issues, such as decreased energy efficiency, increased utility bills, and potential breakdowns.


At Mannix Heating & Cooling, we understand the importance of accurate information when it comes to keeping your home comfortable and energy-efficient. By debunking these common myths, we hope to provide you with the knowledge necessary to make informed decisions about your HVAC system. If you have any further questions or need professional assistance, our team is always ready to help.