Common HVAC Myths Busted by Experts

Common HVAC Myths Busted by Experts

At Lea Heating & AC, we’ve heard it all when it comes to heating and cooling misconceptions. Today, we’re setting the record straight on some of the most persistent HVAC myths that might be costing you comfort and money.

Myth #1: Closing Vents in Unused Rooms Saves Energy

Many homeowners believe that closing vents in rarely used rooms will reduce their energy bills. In reality, your HVAC system is designed to distribute air throughout your entire home. Closing vents creates pressure imbalances that force your system to work harder, potentially increasing energy consumption and causing premature wear on components.

Myth #2: Bigger HVAC Systems Perform Better

When it comes to heating and cooling systems, bigger isn’t always better. An oversized unit will cycle on and off too frequently, leading to temperature fluctuations, higher humidity levels, and excessive wear and tear. Proper sizing is crucial for optimal performance and efficiency.

Myth #3: You Only Need to Change Air Filters Once a Year

This is far from the truth! Most filters should be changed every 1-3 months depending on factors like:

  • Presence of pets
  • Number of occupants
  • Local air quality
  • Allergy concerns

Dirty filters restrict airflow, making your system work harder and reducing its efficiency significantly.

Myth #4: Setting the Thermostat Very Low Cools Your Home Faster

Your air conditioner works at the same rate regardless of how low you set the thermostat. Setting it to 65°F when you want it at 72°F won’t cool your home any faster—it will just keep running longer until it reaches that lower temperature, wasting energy in the process.

Myth #5: Maintenance Is Only Necessary When Something Breaks

Waiting until your system breaks down before calling for service is like never changing your car’s oil until the engine fails. Regular maintenance by Lea Heating & AC professionals helps:

  • Prevent costly breakdowns
  • Extend equipment lifespan
  • Maintain efficiency and performance
  • Ensure safe operation

Annual tune-ups typically pay for themselves in energy savings and avoided repairs.

Myth #6: Ceiling Fans Cool Rooms

Ceiling fans don’t actually lower room temperature—they create a wind chill effect that makes you feel cooler. Running fans in unoccupied rooms wastes electricity without providing any benefit.

The Truth About HVAC Efficiency

At Lea Heating & AC, we’re committed to helping you achieve maximum comfort and efficiency. Understanding these common misconceptions is the first step toward smarter home climate management.

Have questions about your heating and cooling system? Our experienced technicians are always ready to provide honest advice and reliable service to keep your home comfortable year-round.