Common HVAC Myths Debunked: What You Need to Know About Heating and Cooling
When it comes to heating and cooling your home, there’s a lot of advice out there—but not all of it is accurate. At Ace Heating and Cooling, we often hear customers repeat HVAC “facts” that are actually myths. Believing these myths can lead to higher energy bills, unnecessary wear on your system, and reduced comfort at home.
Let’s set the record straight. Here are 10 of the most common HVAC myths—debunked.
1. Myth: Bigger HVAC Systems Are Always Better
Reality: An oversized system won’t heat or cool your home more effectively—in fact, it will likely short-cycle (turn on and off too often), which causes more wear and tear and uneven temperatures. The right-sized system, tailored to your home’s square footage and insulation, is always the better choice.
2. Myth: Closing Vents in Unused Rooms Saves Energy
Reality: Closing vents can actually increase pressure in your ducts, making your HVAC system work harder and less efficiently. It can also lead to uneven airflow and potential duct damage. A better option? Install a zoning system or adjust your thermostat settings properly.
3. Myth: You Only Need to Change Your Filter Once a Year
Reality: Most homes require a filter change every 1–3 months, depending on usage, pets, allergies, and air quality. A dirty filter restricts airflow, lowers efficiency, and puts strain on your system.
4. Myth: You Can Set Your Thermostat High or Low to Heat/Cool Faster
Reality: Your HVAC system works at a consistent rate. Cranking the thermostat won’t speed things up—it just runs longer, which can waste energy. Use a programmable or smart thermostat for better control.
5. Myth: HVAC Maintenance Isn’t Necessary Unless Something Breaks
Reality: Preventative maintenance is essential for keeping your system efficient, extending its life, and catching problems early. A neglected system is more likely to break down unexpectedly—and repairs can be costly.
6. Myth: Ceiling Fans Lower Room Temperature
Reality: Fans move air, but they don’t actually reduce the temperature. They make you feel cooler by increasing air circulation, which helps evaporate sweat. Turn them off when you leave the room to save energy.
7. Myth: All HVAC Companies Provide the Same Level of Service
Reality: Quality varies widely between providers. At Ace Heating and Cooling, we offer certified technicians, top-rated equipment, transparent pricing, and a commitment to customer satisfaction—because you deserve more than “just okay” service.
8. Myth: You Don’t Need Professional Installation for New HVAC Systems
Reality: Professional installation ensures proper sizing, ductwork, calibration, and compliance with local codes. A poorly installed system—even a high-end one—won’t perform as it should.
9. Myth: Duct Tape Is the Best Fix for Leaky Ducts
Reality: Despite its name, duct tape isn’t ideal for HVAC repairs. It can deteriorate under high temperatures. Instead, use foil-backed tape or mastic sealant—or better yet, call a pro for lasting results.
10. Myth: The Location of Your Thermostat Doesn’t Matter
Reality: Thermostat placement is crucial. If it’s near a window, heat source, or drafty door, it can give inaccurate readings and affect your home’s comfort and energy use. We always recommend strategic placement during installation.
Final Thoughts
When it comes to your HVAC system, knowledge is power—and debunking these common myths can help you save money, extend your system’s life, and stay comfortable year-round.
If you're unsure about something you've heard, just ask! At Ace Heating and Cooling, we're here to provide honest, expert advice tailored to your home and HVAC needs.
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