Top 5 Myths About HVAC in Jacksonville, FL (And How They’re Costing You Money)

When it comes to HVAC in Jacksonville, FL, many homeowners fall for common myths that hurt efficiency, increase energy bills, and lead to costly repairs. Today, we’re breaking down the five most common HVAC myths so you can protect your system and save money year-round.

1. “If it’s working, it doesn’t need maintenance”

This is one of the biggest mistakes homeowners make.

👉 Truth: Preventive maintenance is essential—even when your system seems fine. In a hot and humid city like Jacksonville, your HVAC works hard. Regular inspections improve performance, extend the lifespan of the system, and prevent expensive problems. At ER HVAC, we recommend at least one annual maintenance visit.

2. “A bigger system cools faster”

It might sound logical, but installing an oversized HVAC system in Jacksonville is a common error.

👉 Truth: An oversized unit will cycle on and off too quickly, wasting energy and leading to inconsistent temperatures. The best performance comes from a unit properly sized to your home’s needs. ER HVAC provides professional assessments to recommend the perfect fit.

3. “Closing vents in unused rooms saves money”

This seems smart but can backfire badly.

👉 Truth: Your HVAC system in Jacksonville, FL is designed for balanced airflow. Closing vents throws the system off balance, increasing pressure and forcing your system to work harder—leading to damage and inefficiency.

4. “I only need to change the air filter once a year”

Wrong—especially in Jacksonville’s dusty and humid climate.

👉 Truth: Filters should be checked monthly and changed every 1–3 months. Dirty filters reduce airflow, decrease air quality, and strain your HVAC system.

5. “Thermostat placement doesn’t matter”

Location matters more than you think.

Truth: Placing a thermostat near windows, doors, or electronics can give false readings. It should be centrally located away from direct sunlight or heat sources for accurate temperature control.

Why This Matters

Believing these myths about HVAC in Jacksonville, FL can lead to higher energy bills, breakdowns, and discomfort in your home. With the right information and a trusted HVAC partner, you can avoid these costly mistakes.

Trust ER HVAC – Your Local Experts in Jacksonville, FL

At ER HVAC, we help Jacksonville homeowners get the most out of their HVAC systems. From professional maintenance to expert installations, we’re committed to your comfort and efficiency.

📞 Ready for a system check-up or air duct cleaning?

Let’s debunk the myths and get your system running right—contact ER HVAC today.