Get to know popular misconceptions about HVAC systems and get accurate insights.
Alright, let’s set the scene: You’ve just moved into your dream home (or maybe it’s the same cozy spot you’ve had for years), and your HVAC system is humming along.
Suddenly, your neighbor, Bob, strolls over with a nugget of “wisdom” about how you should crank up the heat to make your AC work better in summer.
Bob’s wrong.
HVAC myths are like bad advice from well-meaning friends—they sound plausible but can leave you scratching your head (and possibly your wallet).
So, let’s dive in and really clear the air on some of the most common HVAC myths. Trust me, your system—and your energy bill—will thank you.
Myth #1: Bigger is Always Better for HVAC Systems
Let’s kick things off with the classic “go big or go home” mentality. While this might work for dessert portions, it’s a disaster for HVAC systems.
An oversized system doesn’t heat or cool better—it cycles on and off faster than you can say “energy efficiency.”
This short cycling not only wastes power but also leaves you with uneven temperatures. So, while your living room feels like an igloo, your bedroom might as well be a sauna.
The truth? Size matters, but not like that.
A properly sized HVAC system—calculated by a professional, like your friendly Henderson HVAC Contractors—keeps your home evenly comfortable without guzzling energy.
Myth #2: You Only Need to Change Your Filters Once a Year
Oh, how I wish this one were true.
Filters are the unrecognized heroes of your HVAC system. They catch dust, dirt, pet hair, and all the weird stuff floating around in your air.
Changing them once a year is like washing your car once every five years—it’s just not cutting it.
Most filters need swapping every 1-3 months, depending on how much action your system sees.
Pro tip: If you’ve got pets or allergies, you might want to bump that up. (I learned this the hard way after sneezing my way through spring thanks to a filter that could’ve doubled as a lint roller.)
Myth #3: Closing Vents in Empty Rooms Saves Energy
This one sounds logical, right?
If you’re not using the guest bedroom, why waste energy cooling it? Unfortunately, your HVAC system doesn’t work that way.
When you close vents, you mess with the airflow balance, putting extra pressure on your ductwork. This can lead to leaks, reduced efficiency, and—wait for it—higher energy bills.
If you’re not using a room often, consider investing in a zoning system or a smart thermostat that lets you manage temperatures in specific areas.
That way, you’re not playing HVAC whack-a-mole.
Myth #4: Your HVAC System Doesn’t Need Regular Maintenance
Okay, I get it—calling an HVAC technician doesn’t rank high on the list of fun ways to spend your weekend.
But ignoring regular maintenance is like skipping oil changes for your car: it might run fine for a while, but you’re begging for a breakdown.
Routine tune-ups keep your system running efficiently and catch small issues before they turn into expensive disasters.
Think of your HVAC tech as the system’s personal trainer. Without them, it gets sluggish, sloppy, and more likely to throw in the towel on a 100-degree day. And let’s be real—nobody wants that.
Myth #5: Setting the Thermostat Higher Will Heat the Room Faster
This myth is the HVAC equivalent of thinking pressing the elevator button repeatedly makes it arrive quicker.
Turning the thermostat to 85°F when you want it at 72°F doesn’t heat your home faster; it just keeps the system running longer than necessary.
Instead, set your desired temperature and let the system do its thing.
Pro tip: A programmable thermostat can save you from these thermostat battles by automating temperature changes throughout the day.
Myth #6: Ceiling Fans Cool the Room
I hate to break it to you, but ceiling fans don’t cool rooms—they cool people.
Fans create airflow, making you feel cooler by evaporating sweat, but they don’t actually lower the room temperature.
So, if you leave fans on in empty rooms, you’re just burning electricity for no reason. Save the fan action for when you’re in the room to enjoy it.
(Bonus: It’s a great excuse to sit down and chill for a bit.)
Myth #7: You Can DIY HVAC Repairs
Ah, the siren call of YouTube tutorials.
While I’m all for tackling DIY projects (I once built a bookshelf that mostly stayed upright), HVAC systems are not the place to experiment.
Messing with electrical components, refrigerants, or ductwork without proper training is risky—and not just for your system. You could void warranties, damage equipment, or, worse, injure yourself.
Instead, call in the pros. They’re trained, insured, and ready to teach you what to do for better system care, without the risk of electrocution.
Myth #8: Thermostat Placement Doesn’t Matter
Where you put your thermostat is huge.
Stick it near a sunny window, and it’ll think your house is hotter than it really is. Mount it near a drafty door? It’ll be convinced you’re living in an igloo.
Ideally, place your thermostat in a central location away from direct sunlight, vents, or drafts.
It’s like setting up your Wi-Fi router—you want the sweet spot for maximum efficiency.
Myth #9: HVAC Systems Last Forever
I hate to be the bearer of bad news, but your HVAC system isn’t immortal.
Most systems last 10-15 years, depending on how well they’re maintained.
If yours is pushing 20 and starting to sound like a jet engine, it might be a time for an upgrade.
Newer systems are not only more energy-efficient but can also save you money in the long run. Think of it as trading in your clunker for a sleek hybrid.
Myth #10: Cranking the AC All Day Keeps the House Cooler
Let’s finish strong with one of the most stubborn myths out there. Running your AC nonstop doesn’t magically keep your house cooler—it just runs up your energy bill.
Instead, use your thermostat wisely:
- Set it a few degrees higher when you’re out.
- Use a smart thermostat to automate changes.
- And for the love of all things chill, close the blinds during the hottest parts of the day.
It’s all about working smarter, not harder.
Final Thoughts: Know Your HVAC Facts
There you have it—10 myths busted, no ghost-hunting required.
HVAC systems might seem mysterious, but with a little knowledge (and the right contractors to back you up), you can keep your home comfy and your wallet happy.
And hey, if you’re still unsure what your system needs, call your local Henderson HVAC Contractors.
They’ll teach you what to do, break down the jargon, and ensure that your system is running as smoothly as your morning coffee routine.
So, next time Bob stops by with his “pro tips,” you’ll have all the ammo you need to set him straight. 😉