You’ve probably heard it a hundred times: Turn your thermostat way down to cool your home faster, or Close vents in unused rooms to save energy. They sound logical, right? But here’s the thing: most of what people think they know about HVAC systems just isn’t true.
And in a city like Halifax, where summers can flip from foggy to scorching in a day, relying on outdated advice or HVAC myths could leave you sweating, literally and financially.
Every summer, HVAC contractors across Canada get flooded with calls from homeowners frustrated by high energy bills, inefficient cooling, and malfunctioning air conditioners.
The root cause? More often than not, it’s not the equipment, it’s the misconceptions. These so-called “tips” not only waste energy but can also damage your system and reduce your home’s comfort level.
This blog isn’t just another list of advice, it’s your myth-busting manual backed by real HVAC pros. We’ll walk you through the most common misconceptions about air conditioning and ventilation, explain what’s true, and show you how to keep your home cool without sacrificing efficiency or breaking the bank.
By the end, you’ll be smarter than 90% of homeowners on your block, and your HVAC system will thank you for it.
Let’s clear the air. Literally.
Debunking Common HVAC Myths
Myth #1: Bigger HVAC Systems Provide Better Cooling
Reality: Oversized HVAC units can lead to short cycling, where the system turns on and off frequently, failing to dehumidify the air effectively. This not only compromises comfort but also increases energy consumption and wear on the system. Proper sizing, determined by a professional HVAC contractor through a load calculation, ensures efficient operation and optimal comfort.
Myth #2: Lowering the Thermostat Cools Your Home Faster
Reality: HVAC systems operate at a consistent rate, regardless of the temperature setting. Setting the thermostat lower than desired does not accelerate cooling but can lead to excessive energy use and discomfort. Utilizing a programmable thermostat allows for efficient temperature management without unnecessary energy expenditure.
Myth #3: Closing Vents In Unused Rooms Saves Energy
Reality: Closing vents disrupts the balance of airflow in your HVAC system, potentially causing pressure imbalances and reducing efficiency. This can lead to increased energy consumption and strain on the system. Maintaining open vents ensures proper airflow and system performance.
Myth #4: Ceiling Fans Lower Room Temperature
Reality: Ceiling fans create a wind-chill effect, making occupants feel cooler, but they do not lower the actual room temperature. Running fans in unoccupied rooms wastes energy without providing any cooling benefit. Use fans to enhance comfort when in the room, and turn them off when leaving.
Myth #5: HVAC Maintenance Is Only Necessary When Problems Arise
Reality: Regular maintenance is crucial for the longevity and efficiency of your HVAC system. Routine inspections and tune-ups can identify potential issues before they become costly repairs, ensuring optimal performance and energy efficiency.
Myth #6: Turning Off The AC When Away Saves Energy
Reality: Completely turning off your AC can lead to increased humidity and higher temperatures indoors, making it harder and more energy-intensive to cool down upon return. Instead, adjust the thermostat to a higher setting when away to maintain humidity control and reduce energy use.
Myth #7: Air Filters Only Need Replacement Once A Year
Reality: Air filters should be checked monthly and replaced every 1-3 months, depending on usage and environmental factors. Clean filters ensure proper airflow, improve indoor air quality and enhance system efficiency.
Myth #8: Thermostat Placement Doesn’t Affect HVAC Performance
Reality: The location of your thermostat significantly impacts HVAC efficiency. Placing it near heat sources or in direct sunlight can cause inaccurate readings, leading to unnecessary system cycling. Position your thermostat on an interior wall, away from drafts and direct sunlight, for accurate temperature control.
Expert HVAC Contractor: Ace Refrigeration & Air Conditioning
At Ace Refrigeration & Air Conditioning, we don’t just install and repair HVAC systems, we help Halifax homeowners make smarter, more energy-efficient decisions about indoor comfort.
For years, our certified technicians have been serving residential clients across Halifax, Bedford, Dartmouth, and surrounding areas with one mission in mind: to keep homes comfortable, efficient, and worry-free year-round.
We specialize in a full range of residential HVAC services, including:
- Air conditioning installation and repair
- Ducted and ductless heat pump systems
- Regular HVAC maintenance and tune-ups
- Indoor air quality improvements
Electrical upgrades and troubleshooting for climate control systems
When it comes to debunking myths and solving real-world HVAC challenges, Ace Refrigeration is the contractor homeowners trust. Whether you’re upgrading your old cooling system or just want honest, practical advice before the next heatwave, our team is here to help.
We’re proud of our prompt service, transparent communication, and attention to detail, qualities that have earned us a reputation for excellence across HRM. If you’ve been burned by misinformation or just want your HVAC system assessed by experienced pros, we’re ready when you are.
Have questions? Need an expert HVAC contractor you can trust?
Contact us today to schedule your service or get a custom consultation tailored to your home’s needs.
Frequently Asked Questions
How Often Should I Replace My HVAC Air Filter For Optimal Performance?
It’s recommended to check your HVAC air filter every 30 days and replace it every 60 to 90 days, depending on usage and household factors like pets or allergies. Regular replacement ensures efficient airflow and maintains indoor air quality.
Can Closing Vents In Unused Rooms Improve HVAC Efficiency?
Closing vents in unused rooms can disrupt the airflow balance in your HVAC system, potentially causing pressure issues and reducing efficiency. It’s best to keep vents open to ensure optimal system performance.
Is A Bigger HVAC System Better For Cooling My Home?
An oversized HVAC system can lead to short cycling, where the system turns on and off frequently, failing to dehumidify the air effectively. Proper sizing, determined by a professional HVAC contractor, ensures efficient operation and optimal comfort.
