From 100+ degree days to the occasional winter freeze, Austin homeowners rely on their HVAC systems year-round. Any local resident knows the value of a well-functioning HVAC Austin system. But when it comes to heating and cooling your home efficiently, there’s a lot of misinformation out there. Falling for common myths can lead to higher energy bills, unnecessary repairs, and reduced comfort.
We’re here to set the record straight. Let’s break down some of the most common HVAC myths and share what you really need to know to keep your system running strong.
Myth #1: A Bigger HVAC System Will Cool or Heat Your Home Faster
Why It’s a Common Belief:
It seems logical, right? A bigger unit seems like it would cool things down more quickly.
The Fact:
An oversized system can actually work against you. Bigger units often short cycle, which means that they turn on and off frequently. This can be especially problematic in Austin’s humid climate, where proper dehumidification is key to comfort. You may feel cool but clammy, and your system will wear out faster due to the extra strain.
The Fix:
The right-sized HVAC system is based on a professional load calculation that takes into account your home’s square footage, insulation, window placement, and sun exposure. Our certified technicians at TemperaturePro Austin can help you choose the system that fits your home, whatever size that may be.
Myth #2: Closing Vents in Unused Rooms Saves Energy
Why Homeowners Do This:
It seems like an easy way to redirect airflow and save money, and if they say it works, it must, right?
Why It Doesn’t Work:
Closing vents disrupts the airflow balance your HVAC system was designed for. This increases pressure in your ductwork, which can stress components like the blower motor, reduce efficiency, and even cause duct leaks. Over time, it can lead to system damage and even higher repair costs.
What to Do Instead:
Keep vents open throughout your home to maintain balanced airflow. If you want better temperature control from room to room, consider upgrading to a zoned HVAC system or installing a smart thermostat.
Myth #3: Lowering the Thermostat All the Way Down Cools Your Home Faster
Why It Feels Like It Should Work:
Many people walk into a hot house and think, “If I set the thermostat to 65°F, it’ll cool faster.”
Reality Check:
Your system cools at a consistent rate — no matter how low you set the temperature. Lowering the thermostat simply causes your unit to run longer, which isn’t great for energy efficiency and increases wear on your system without speeding up the cooling process.
Pro Tip:
Stick with a comfortable, steady temperature (around 74–76°F for most Austin homes), and use a programmable or smart thermostat to make adjustments while you’re away or asleep.
Myth #4: HVAC Maintenance Isn’t Necessary Unless Something Breaks
Why Some Skip It:
If your system seems to be working fine, regular HVAC maintenance can feel like an unnecessary expense. “If it ain’t broken, why fix it?”
Why That’s Risky:
Neglecting routine service can lead to hidden issues that reduce efficiency and lead to breakdowns — especially during peak the very hot days or cold, cold months. Dirty coils, low refrigerant, and worn parts are easy to catch early, but expensive if ignored.
Why It Matters:
Professional HVAC tune-ups twice a year (spring and fall) help extend your system’s lifespan, improve energy efficiency, and keep your warranty intact. Our maintenance plans at TemperaturePro Austin make it easy to stay on schedule and save money long-term.
Trust the Pros. Stay Comfortable Year-Round.
At TemperaturePro Austin, our mission is simple: keep your home comfortable and energy-efficient through every season. If you have questions about your HVAC system or want to schedule a tune-up, we’re just a call or click away.