As summer heat rolls in, you may get plenty of advice on keeping your home cool. While some of these tips are helpful, others can actually make your energy bills spike even higher. The experienced team at C & C Heating & Air Conditioning dispels common air conditioning myths, offers advice on what works to keep your home cool, and shares tips on how to improve AC efficiency in Roseville, MI, and surrounding areas.
Why Common Cooling Advice Can Make Your AC Work Harder
Some advice we’ve heard for years can actually make your air conditioner work harder, leading to premature wear and tear and higher energy bills. Some of these myths, like lowering the thermostat and closing vents in unused rooms, might do more harm than good. Areas like Roseville and Ann Arbor see prolonged summer wet periods, which can raise humidity and prompt homeowners to adjust their air-conditioning habits, even if they don’t need to.
Cooling Myth: Lowering the Thermostat Makes Your Home Cool Faster
Many people wonder: does lowering the thermostat cool a house faster? One of the most common HVAC myths is that lowering your thermostat settings can make your home feel cooler faster. What many people don’t realize is that your air conditioning equipment cools your space at the same rate, no matter how low you set the thermostat. During the summer, your air conditioner may run in longer 30-minute cycles, but it should not run continuously during a Michigan heatwave.
Why Your AC Does Not Cool Faster at a Lower Thermostat Setting
Setting the temperature dramatically lower doesn’t cool your home faster. This only tells your system to keep running until it reaches that temperature, which increases energy use and strains your equipment. Setting the thermostat several degrees lower uses more energy because the larger indoor-outdoor temperature difference forces the AC to work harder.
A smarter way to maintain AC efficiency is to choose a comfortable temperature and stick with it. You can also keep temperatures consistent by installing a programmable or smart thermostat that automatically adjusts when you’re away from home or sleeping, preventing unnecessary runtime.
Cooling Myth: Closing Vents in Unused Rooms Saves Energy
Many people ask, should I close AC vents in unused rooms to save energy and improve cooling efficiency? Closing or blocking your return vents increases your air conditioner’s workload because return vents pull indoor air back into the system to be cooled. When they’re blocked or covered, it prevents the blower from moving air, restricting airflow and reducing air conditioning efficiency in your Southeast Michigan home. Remove obstructions like furniture and area rugs to keep all floor vents clear.
How Closed Vents Can Disrupt HVAC Airflow
Keep your return vents open, and keep bedroom doors open when the AC is running to maintain proper airflow and pressure balance. Here’s how keeping your vents closed can disrupt airflow:
- Closing vents blocks the path of air through the system and increases static pressure, reducing performance and efficiency.
- Additional resistance from closed vents forces the blower motor to work harder, which may cause it to overheat and require professional AC repairs.
- Restricted airflow from blocked vents may dirty the evaporator coils or cause them to freeze, which significantly reduces cooling efficiency.
Cooling Myth: Leaving Ceiling Fans Running Keeps Empty Rooms Cool
Using a ceiling fan may improve AC efficiency slightly, but it doesn’t keep empty rooms cooler. Leaving your ceiling fans running when you’re not in the room will only raise your electric bill. Ceiling fans aren’t as effective as you might think because they don’t actually lower air temperature and instead just cool your skin rather than the air around you. If you want to save energy and improve efficiency, consider a ductless mini-split for zoned temperature control that cools only the rooms you use.
Why Ceiling Fans Cool People Instead of Rooms
Ceiling fans can make you feel cooler by creating a breeze that helps sweat evaporate from your skin more quickly, but they don’t cool the air in a room. Running your ceiling fan may allow you to use a slightly higher thermostat setting more comfortably, but only if you’re in the room where the fan is on. A good summer cooling tip is to make sure that your ceiling fan spins counterclockwise to push the air straight down onto your skin, which may help you feel cooler through evaporation.
How Thermostat Habits Affect Air Conditioner Runtime
Your thermostat habits can significantly impact air conditioner runtime and efficiency. If you’re wondering whether the AC fan should be set to ON or AUTO, choose AUTO, since the fan runs only when the system is actively running and turns off when your space reaches the pre-set temperature.
Follow these thermostat air conditioning tips to support more energy-efficient air conditioning:
- The best AC thermostat settings in Roseville, MI, are about 78°F when you’re home and 72°F to 78°F when you’re sleeping.
- You don’t need to adjust your thermostat throughout the day, as frequent cycling increases wear and tear and lowers system efficiency.
- When nobody is home, raise your thermostat to between 82°F and 85°F so your AC isn’t running constantly when no one is there.
- Turning your AC off completely when you’re away won’t make it work harder later, but it can make your home heat up so much that it may force a longer recovery run time that uses more energy.
Why Proper Airflow Matters for Cooling Efficiency
To reduce AC energy use in Michigan, make sure that your system has proper airflow. Here are some reasons why supporting proper airflow matters for cooling efficiency:
- Air conditioners remove heat, so the warm air must flow evenly and steadily over the evaporator coil to release it properly.
- Restricted airflow keeps the coils from absorbing heat properly, forcing your equipment to run longer.
- Improper airflow keeps the refrigerant from warming up enough, resulting in frozen evaporator coils.
- When airflow is restricted, it forces important components like the blower motor to work harder, leading to overheating and mechanical failures that require professional air conditioning repair.
- Airflow problems can also cause debris and dust to build up on the outdoor condenser, making your AC run longer than it needs to.
- Adequate airflow keeps your system in contact with the coil to pull moisture out of the air, while low airflow increases indoor humidity, which can make your home feel warmer and stickier even when the thermostat is set to a comfortable temperature.
How Dirty Air Filters Make Your AC Work Harder
Replacing your air filter when it gets dirty or clogged improves airflow and is a vital part of routine air conditioner maintenance. Check your air filter every 30 days during cooling season and replace it as needed. A blocked air filter restricts airflow through the system and forces the AC to work harder, reducing overall performance and efficiency.
Simple Ways to Reduce Heat Gain During Michigan Summers
Check out these helpful Michigan summer air conditioning tips to reduce heat gain during the summer:
- Schedule professional HVAC maintenance once a year, preferably in early spring before cooling season begins.
- Inspect ductwork for leaks, which can make your air conditioner run longer because of heat gain.
- Use blinds or room-darkening curtains to block direct sunlight through windows, which can increase your air conditioner’s workload.
- Seal gaps and drafts around windows and doors, and make sure your attic insulation is adequate and undamaged.
How Routine AC Maintenance Supports Efficient Cooling
One of the best summer HVAC tips in Roseville, MI, is to schedule routine maintenance with the experienced team at C & C Heating & Air Conditioning. Regular AC maintenance in Roseville, MI, helps you catch minor issues early before they become expensive breakdowns that require a full AC system replacement. Plus, seasonal AC maintenance in Macomb County, MI, keeps moving parts lubricated, maintains refrigerant levels, and supports proper airflow by checking and replacing filters and cleaning dusty or dirty parts as needed.
Keep Your Cooling System Running Efficiently With C & C Heating & Air Conditioning
Do you need home AC service in Southeast Michigan? Contact C & C Heating & Air Conditioning today to schedule installation, repair, or maintenance services and ask about Energy Star Rebates available to you!
