Debunking HVAC Myths for Optimal Comfort


When it comes to heating, ventilation, and air conditioning (HVAC) systems, there are numerous myths and misconceptions circulating, leading to confusion and inefficient operation. At Magtek Mechanical, we prioritize energy efficiency and want to ensure our customers are well-informed about their HVAC systems. In this blog post, we’ll debunk some common myths and provide valuable insights.

Myth #1: Closing Vents in Unused Rooms Saves Energy

Many homeowners believe that closing vents in unused rooms will reduce energy consumption. However, this practice can actually put unnecessary strain on your HVAC system, leading to higher energy bills and potential system failure. HVAC systems are designed to operate with a balanced airflow, and closing vents disrupts this balance, causing the system to work harder and potentially leading to uneven temperatures throughout the home.

Myth #2: Bigger is Better When it Comes to HVAC Systems

It’s a common misconception that larger HVAC systems provide better performance. In reality, an oversized system will cycle on and off more frequently, leading to inefficient operation and potential moisture issues. The key is to have a properly sized system that matches the heating and cooling needs of your home. At Magtek Mechanical, our technicians perform thorough load calculations to ensure the right system size for optimal efficiency and comfort.

Myth #3: Air Conditioning Causes Colds and Flu

Many people believe that being in an air-conditioned environment can cause colds or flu. However, this is simply not true. Air conditioning systems do not cause illnesses; they merely regulate the temperature and humidity levels in a space. Colds and flu are caused by viruses, which can spread more easily in poorly ventilated areas with stagnant air.

Myth #4: Replacing Air Filters Is Unnecessary

  • Regularly replacing air filters is crucial for maintaining indoor air quality and ensuring efficient system operation.
  • Clogged filters restrict airflow, forcing the HVAC system to work harder and leading to higher energy bills and potential breakdowns.
  • At Magtek Mechanical, we recommend replacing air filters every 3 to 6 months, depending on the type of filter and the conditions in your home.


By debunking these common HVAC myths, we hope to empower our customers with the knowledge to make informed decisions about their heating and cooling systems. At Magtek Mechanical, we prioritize energy efficiency, indoor air quality, and optimal comfort for our customers. If you have any questions or concerns about your HVAC system, our team of licensed professionals is always here to provide expert guidance and solutions.