Clearing the Air on HVAC Myths


In the world of heating, ventilation, and air conditioning (HVAC), myths and misconceptions can often cloud the truth. At NOCO, we believe in empowering our customers with accurate information to make informed decisions. In this blog post, we’ll debunk a common myth surrounding HVAC systems.

The Myth: Closing Vents in Unused Rooms Saves Energy

Many homeowners believe that closing vents in rooms they don’t frequently occupy can save energy and reduce utility bills. However, this is a myth. Here’s why:

  1. HVAC systems are designed to distribute air evenly throughout the entire home. Closing vents disrupts this balance and can cause your system to work harder, leading to increased energy consumption and potential damage.
  2. Closed vents create excessive pressure within the ductwork, which can lead to leaks and allow conditioned air to escape into unconditioned spaces, such as attics or crawlspaces.
  3. Uneven airflow can cause some rooms to become too hot or too cold, reducing overall comfort and potentially leading to hot and cold spots throughout the home.

The Reality: Keep Vents Open and Adjust the Thermostat

Instead of closing vents, the most energy-efficient approach is to keep all vents open and adjust the thermostat to a comfortable temperature for the areas you occupy. This allows your HVAC system to operate as designed, maintaining proper airflow and preventing unnecessary strain.

If you have rooms that are rarely used, consider implementing zoning systems or installing individual room thermostats to better regulate the temperature in those areas without compromising the efficiency of your HVAC system.


At NOCO, we strive to provide our customers with reliable information and quality services. By debunking the myth of closing vents to save energy, we hope to help you make informed decisions that maximize the efficiency and longevity of your HVAC system. If you have any questions or concerns, our team of experts is always ready to assist you.

Related Posts