5 HVAC Myths That Are Costing You Money
When it comes to keeping your home comfortable, there’s no shortage of advice—but not all of it is true. In fact, some common HVAC myths could be driving up your energy bills, shortening your system’s lifespan, or making your air less healthy.
At Murphy’s Heating & Air, we’re here to clear the air. Let’s break down 5 popular HVAC myths—and what you should do instead.
1. Myth: “Bigger Systems Cool Better”
Truth: An oversized system may cool your home fast—but it won’t cool it well. Short cycling leads to uneven temperatures, high humidity, and unnecessary wear. Your system should be properly sized for your home’s layout and square footage.
2. Myth: “You Only Need to Change Filters Once a Year”
Truth: Dirty filters are the #1 cause of HVAC inefficiency and failure. In Arizona’s dusty climate, most homes need a filter change every 1–3 months. If you have pets or allergies, aim for monthly replacements.
3. Myth: “Closing Vents in Unused Rooms Saves Energy”
Truth: Nope. Closing vents throws off your system’s balance and increases pressure in the ducts, which can lead to leaks or breakdowns. Your HVAC is designed to circulate air evenly through the whole house.
4. Myth: “Thermostat Location Doesn’t Matter”
Truth: Placing your thermostat near a sunny window, kitchen, or vent can confuse it and cause your system to overwork. Keep it in a central, shaded part of your home for accurate readings.
5. Myth: “You Don’t Need Maintenance if Everything Seems Fine”
Truth: HVAC issues often start quietly—until they turn into major (and expensive) problems. Routine tune-ups catch problems early, help your system last longer, and can save you hundreds on energy and repairs.
Busted Myths, Better Comfort
Believing these HVAC myths could be costing you in more ways than one. If you want reliable, efficient comfort you can trust, let Murphy’s Heating & Air guide you with honest service and expert insight.
Have questions? Need a tune-up or system check?
Call us at (661) 499-9691 or book online today.
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