HVAC Myths Busted: What Florida Homeowners Really Need to Know

When it comes to HVAC systems, there’s no shortage of advice—some helpful, some not so much. Today, we’re here to bust the most common HVAC myths and give Florida homeowners the real scoop on what keeps your air conditioning working efficiently in this heat.

Myth #1: Bigger is Always Better

Truth: An oversized system doesn’t cool your home faster—it cycles on and off more frequently, wasting energy and wearing down components.

Myth #2: You Only Need to Change Your Filter Once a Year

Truth: In Florida’s dusty, humid climate, filters should be checked monthly and changed at least every 2–3 months.

Myth #3: Closing Vents in Unused Rooms Saves Energy

Truth: This disrupts airflow and can actually put more strain on your HVAC system, reducing efficiency.

Myth #4: HVAC Maintenance Is a Waste of Money

Truth: Regular maintenance extends the lifespan of your system, prevents expensive breakdowns, and lowers energy bills.

Myth #5: If It’s Running, It’s Fine

Truth: Just because your system is on doesn’t mean it’s healthy. Hidden issues like dirty coils or clogged ducts can lead to high bills and poor air quality.

Why Does This Matter in Florida?

High humidity and heat levels mean your system works overtime. Trusting HVAC myths can cost you comfort, energy, and money.

Want the truth straight from the pros?

At ER HVAC, we don’t just fix your system—we educate you so you make smarter choices. Contact us for expert HVAC services in Jacksonville, FL, from maintenance to air duct cleaning and more.