Dispelling Common HVAC Myths for Homeowners


At Mountain View Air Conditioning & Heating, we understand that homeowners may encounter various myths and misconceptions surrounding their HVAC systems. As your trusted HVAC company, we’re here to debunk some of the most common myths and provide you with accurate information to help you make informed decisions.

Myth #1: Closing Vents Reduces Energy Consumption

Many homeowners believe that closing vents in unused rooms can save energy and lower their utility bills. However, this is a myth. HVAC systems are designed to operate with a balanced airflow throughout the entire home. Closing vents can actually increase energy consumption by forcing the system to work harder to maintain the desired temperature.

Myth #2: Bigger HVAC Units Are Always Better

It’s a common misconception that larger HVAC units are more effective and efficient. In reality, an oversized unit will cycle on and off more frequently, leading to uneven temperatures, increased energy consumption, and potentially shorter equipment lifespan. Proper sizing is crucial for optimal performance and efficiency.

Myth #3: Duct Cleaning Is Unnecessary

  • Dirty ductwork can harbor dust, mold, and other contaminants, which can circulate throughout your home and potentially aggravate respiratory problems.
  • Regular duct cleaning by professionals can improve indoor air quality and enhance the overall efficiency of your HVAC system.
  • It’s recommended to have your ductwork inspected and cleaned periodically, especially if you’ve recently renovated or haven’t had it done in several years.


At Mountain View Air Conditioning & Heating, we strive to provide our customers with accurate information and reliable services. By debunking these common HVAC myths, we hope to empower homeowners to make informed decisions about their heating and cooling systems. If you have any further questions or concerns, our team of experts is always ready to assist you.