Summers in Walla Walla can be hot and dry, and your HVAC system becomes one of the hardest-working systems in your home. Unfortunately, a lot of bad advice is floating around regarding heating and cooling. These common myths not only lead to higher utility bills but can also result in avoidable wear and tear or even full system breakdowns if left unchecked.
To help you stay cool and comfortable while protecting your investment, we’re breaking down some of the most widespread HVAC myths—and giving you the facts you need to make smart decisions.
Not sure if your HVAC system is running efficiently? Reach out to us now or call (509) 659-7565 for quick help before summer peaks!
Myth #1: You Only Need to Change Your Filter Once a Year
The truth: Your air filter isn’t just about air quality—it’s about system efficiency. A dirty filter creates resistance, forcing your HVAC system to work harder to push air through your ductwork. Over time, this strain can shorten your system’s lifespan, increase your energy consumption, and even cause parts like the blower motor to overheat.
In Walla Walla, summer months often bring dust and pollen that can clog filters faster, especially if you have pets or open your windows frequently.
What to do instead:
- Check your air filter every 30 days in the summer.
- Replace it every 1 to 3 months, depending on usage and filter type.
- Consider upgrading to a high-efficiency pleated filter if you have allergies or pets.
Regular filter replacement is one of the simplest, most cost-effective ways to improve airflow and lower your energy bill.
Myth #2: A Bigger HVAC Unit Means Better Cooling
The truth: Oversizing an HVAC system for your home leads to more problems than benefits. While it may cool the space quickly, it won't run long enough to remove humidity properly. The result? A clammy, uncomfortable indoor environment—even if the temperature reads 72°F.
Additionally, oversized units tend to cycle on and off more frequently, which leads to:
- Higher energy use from frequent starts and stops
- Uneven cooling in different areas of the home
- Increased wear and tear on system components
- Reduced system life expectancy
Proper sizing matters. A qualified HVAC technician will conduct a load calculation (not just go by square footage) to determine the right system size for your specific home.
If you're considering replacing your current system, check out our AC installation services to ensure you get the right fit.
Myth #3: Setting the Thermostat Lower Will Cool the House Faster
The truth: Your HVAC system cools at a steady rate, no matter how low you set the thermostat. Cranking it down to 60°F won’t get your home to 75°F any quicker—it will just cause the system to run longer than necessary.
This leads to energy waste and can even cause the indoor temperature to drop lower than needed, prompting more wear and discomfort.
What you should do instead:
- Set your thermostat to your desired comfort temperature (usually between 74°F and 78°F in summer).
- Use a programmable or smart thermostat to schedule temperature adjustments while you're asleep or away.
- Avoid constant manual adjustments, which can confuse the system and increase utility bills.
Smart thermostats are especially useful in Walla Walla homes, helping manage cooling cycles during hot afternoons while conserving energy in the cooler evenings.
Myth #4: Closing Vents in Unused Rooms Saves Energy
The truth: Closing vents might seem like a good way to redirect airflow and save money, but it actually disrupts your system’s airflow balance. Your HVAC system is designed to operate with balanced airflow throughout your home. When you close vents, you disrupt that balance and increase air pressure in the ductwork. That added pressure can strain your blower fan and cause duct leaks over time.
Instead of saving energy, your system ends up burning more of it just to compensate. You might even notice uneven cooling in other rooms or hear the system cycling on and off more often.
A smarter approach:
- Keep vents open and unobstructed in all rooms.
- Use ceiling fans to supplement airflow and distribute cooled air more effectively.
- Consider zoning systems if you want precise control over specific areas of your home.
Balancing the system is key to efficiency and comfort, especially during long, dry summer days in Walla Walla.
Myth #5: Maintenance Isn’t Necessary Unless Something Breaks
The truth: Waiting until your HVAC system has a problem is like skipping oil changes and waiting for your car to stall. By the time there’s a noticeable issue, damage may already be done, and repairs can be more costly.
Like any mechanical system, your HVAC unit performs best with regular attention. Without routine maintenance, small problems like dirty coils, worn-out parts, or low refrigerant levels can quietly worsen over time. These issues can make your system work harder than it should, using more energy and increasing the risk of sudden breakdowns.
Routine maintenance can offer:
- Lower energy bills
- Longer equipment life
- More consistent comfort
- Fewer emergency repairs
A well-maintained system can mean the difference between staying cool and scrambling for emergency service during a heatwave. If you want to prepare your system before summer gets intense, our team offers reliable AC maintenance services designed to keep your unit in peak condition.
Don’t Fall for HVAC Myths—Stay Cool With Help From Total Comfort Solutions
Misinformation can lead to costly mistakes, especially during the high-demand cooling season in Walla Walla. By understanding the facts behind these common myths, you can keep your HVAC system running efficiently, extend its lifespan, and maintain a more comfortable home all summer long.
Not sure where your system stands? Let the pros at Total Comfort Solutions take a look. Use our online contact form or call us at (509) 659-7565 to book a tune-up, ask a question, or schedule a consultation.