When it comes to maintenance and care, HVAC myths are everywhere. From blog articles to social media posts, it’s easy to stumble across well-meaning but incorrect advice. That’s why our team of HVAC professionals is here to help you separate fact from fiction.
Let’s break down five of the most common HVAC myths and give you the expert-backed truth.
Myth #1: You Only Need to Replace Air Filters Once a Year
Reality: Annual replacement isn’t enough.
A common question we hear is: How often should you replace air filters? The answer is every 3 to 6 months, depending on your home environment. Pets, allergies, or dusty conditions can mean more frequent changes are needed.
Replacing air filters regularly ensures clean air filters, which:
- Help your system run more efficiently
- Extend the life of your HVAC system
- Support better indoor air quality (especially for those with allergies or asthma)
Making air filter maintenance a routine task is one of the easiest ways to protect both your health and your wallet.
Myth #2: You Only Need HVAC Maintenance Once Something Breaks
Reality: Preventative care should be done regularly, to help prevent breakdowns.
Waiting until your system breaks down can lead to more expensive repairs and sometimes complete replacement. Regular preventative maintenance helps identify small issues before they become big problems.
Whether it’s furnace maintenance, an A/C tune-up, or a general inspection, routine service keeps your system running smoothly year-round and extend your system’s lifespan.
Myth #3: Bigger HVAC Units Perform Better
Reality: Size should match your space.
It’s easy to assume a larger unit will do a better job but that’s not always true. Oversized HVAC units can short cycle, wearing out faster and using more energy than necessary, making one of many HVAC myths.
The best-performing systems are sized properly for your square footage. If you’re unsure which system is right for your home, reach out to our HVAC experts for a personalized assessment. We’ll help you choose an efficient system that balances comfort and cost.
Myth #4: You Should Always Cover Your Outdoor HVAC Unit in Winter
Reality: Most modern systems are built for the elements.
While it may seem like a good idea to use an HVAC unit cover during the colder months, it’s often unnecessary—and can actually do more harm than good. Today’s outdoor units are designed to handle snow, ice, and freezing temps.
Covers can trap moisture or become nesting spots for pests like rodents. Unless your manufacturer specifically recommends using a cover, it’s best to leave the unit uncovered and simply clear away debris or snow as needed.
Myth #5: A DIY Install Will Always Save Me Money
Reality: Without professional installation, you risk performance and your warranty.
Energy-efficient air conditioners and other HVAC systems are smart investments—but only when they’re installed correctly. Improper DIY installation can lead to:
- Reduced system efficiency
- Higher energy bills
- Shortened system lifespan
- A voided HVAC warranty
Our certified HVAC professionals ensure your system is installed to manufacturer standards, so you get the maximum return on your investment and keep your warranty valid. Trust the pros to do it right the first time.
Trust the Facts (And Valor Mechanical)
Believing these HVAC myths can lead to unnecessary costs, reduced system efficiency, and even voided warranties. From air filters to professional installation, it pays to have trusted experts in your corner.
At Valor Mechanical, we take the guesswork out of HVAC maintenance with honest answers, reliable service, and the experience to back it all up. Whether you need a tune-up, repair, or new system, our team is here to help at every step of the way. Reach out with your questions or schedule a service today!