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  • Writer's pictureNicholas Repik

HVAC Myths Busted: What You Need to Know

Updated: Feb 22

retro image of man changing thermostat temp

In the world of HVAC, there's no shortage of myths and tall tales. And let's be honest, these can lead to some pretty costly misunderstandings. That's why we at Pantaira Heating and Air are here to set the record straight. No BS, just facts.

Myth 1: Bigger is Always Better

Think a bigger HVAC unit means better performance? Think again. They come in different sizes for a reason. More square footage usually means more BTU's. There's usually more to it than just square feet; like insulation level, windows quantity, window types, home orientation, ceiling height, climate zone, blah bah blah.. But for the most part remember; an oversized unit can lead to inefficiency, increased wear and tear, and discomfort. The right size brings the right comfort.

Myth 2: Cranking the Thermostat Changes Temperature Faster

Rushing your thermostat won’t make your home warm up or cool down any faster. It's not a sprint; it’s a marathon. When a home takes too long to heat/cool check the insulation and leaks around those doors and windows. If that doest work, then it's time to call a pro. So don't take your frustration out on your stat. Set it right, and give it time.

Myth 3: Closing Vents in Unused Rooms Saves Money

This old chestnut is not only wrong, but it can also damage your system. Closing vents can cause pressure imbalances and lead to costly repairs such as damaged blower motors, compressors, frozen evaporator coils, and so on. Think of it like creating an airflow restriction.. And "restriction" is a word you never want to hear, with regards, to your HVAC system.

Myth 4: Maintenance Plans are Unnecessary Expenses

Think you're saving money by skipping professional maintenance? Wrong. Regular check-ups prevent major breakdowns and keep your system running efficiently, saving you money in the long run. You wouldn't skip a maintenance on your precious gas guzzler would you? Same goes for your HVAC system. Treat it right with pro maintenance and it will treat you right.

Myth 5: Air Filters Only Need Replacing Once a Year

Many folks believe their air filters only need one yearly swap. Wrong. Regular filter changes are crucial for maintaining air quality and system performance. Think of it like this: would you wait a year to clean the lint filter in your dryer? If that's you, then take my card, because you're gonna need a new HVAC system sooner rather than later.. Use the same principles in Myth 3, you're creating an airflow restriction and restriction and HVAC don't mix. Keep your air clean and your system happy with more frequent filter changes.. Free with our annual maintenance's, btw..


Busting these myths is part of our mission to keep you informed and your systems in peak condition. At Pantaira Heating and Air, we believe in honest, straightforward advice. Got more questions or myths you need busted? Reach out. We're here to clear the air – literally.


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