When it comes to heating and cooling your home, there’s no shortage of advice floating around online – and not all of it is accurate. At 4 Winds AC and Heating, we hear HVAC myths all the time, and unfortunately, some of them cost homeowners money, comfort, and even safety.

Let’s dive into some of the most popular myths, and the truth behind them.

Myth #1: You Only Need to Change Your Air Filter Once a Year

Fact: Most filters should be changed every 1-3 months

Your HVAC filter protects your system and helps maintain healthy indoor air. A clogged filter restricts airflow, makes your system work harder, and can even lead to breakdowns. Homes with pets, smokers, or allergy sufferers may need to replace filters even more often.

Myth #2: Turning the Thermostat Way Down Cools the House Down Faster

Fact: Your system runs at the same speed no matter what temperature you set it at

Cranking your thermostat down to 60 degrees doesn’t cool your home any faster – it just makes your system run longer, wasting energy. Set your thermostat to your desired temperature and let it do its job.

Myth #3: Closing Vents in Unused Rooms Saves Money

Fact: Closing vents can increase pressure and damage your system

Your HVAC system is designed to operate with all vents open. Closing some can disrupt airflow, create pressure imbalances, and even lead to leaks or mechanical issues. Instead, talk to a pro about zoning options or airflow balancing.

Myth #4: Bigger HVAC Systems Are Always Better

Fact: An oversized unit can cause more problems than it solves

Bigger isn’t better when it comes to HVAC. An oversized system will cycle on and off too quickly, leading to uneven temperatures, humidity issues, and higher energy bills. Proper sizing is key to comfort and efficiency.

Myth #5: You Don’t Need Annual Maintenance if Your System Seems Fine

Fact: Preventative maintenance helps avoid costly repairs and keeps your system efficient

Even if your system is running, small issues can go unnoticed until they become major problems. Regular maintenance improves efficiency, extends system life, and helps catch issues before they lead to breakdowns.

Myth #6: HVAC Systems Don’t Affect Indoor Air Quality

Fact: Your HVAC system plays a major role in your home’s air quality

From the type of filter you use to the cleanliness of your ductwork, your HVAC system has a big impact on the air your family breathes. Adding air purifiers or UV lights can further improve air quality.

Final Thoughts

Believing HVAC myths can lead to higher energy bills, reduced comfort, and even premature system failure. If you’re ever unsure about what’s true and what’s not, the best thing you can do is ask a licensed HVAC professional.

At 4 Winds AC and Heating, we’re here to give you honest answers and help you make smart decisions about your home comfort.