Best HVAC Practices when the Weather Fluctuates

South Carolina weather can’t make up its mind. One day it’s 30 degrees and the next it’s nearly 80. Constantly switching from heating to cooling spends more energy because your HVAC has to work harder to maintain the set temperature.

Here are some ways to navigate temperature swings and save on energy bills.


Smart Thermostats

Smart thermostats keep your home’s temperature within your desired range. The system will automatically cool or heat based on the preferences you set, so you don’t have to manually change the settings multiple times a day.

You can save even more energy by programming the thermostat to your schedule. Allow the temperature to adjust higher or lower than your usual preference when the house is empty. When you’re expected to return, the thermostat can automatically return to your desired temperature.


Stick to One Temperature

If you don’t have a smart thermostat to cut down on unnecessary energy consumption automatically, picking a consistent temperature is the best way to save money.

For example, keeping your home at 70 degrees always is more energy efficient than having the house at 65 during the day and 75 at night.

Supplementing this with fans when it is warm and blankets when it is cold will decrease your energy bills.



Properly insulating your home prevents air from escaping and reduces the workload on your HVAC system. This is especially important when the weather is fluctuating because it makes it more difficult to maintain a consistent indoor temperature. The upfront cost of sealing your windows, doors, and attic is worth the energy savings in the long run.

Additionally, making sure your chimney flue is shut when you are not using it will help save energy.


Keep Vents Open

It’s a common misconception that closing air vents in unused rooms will push more heat or air to other rooms. This actually causes the HVAC system to run less efficiently and wastes energy.

Make sure all your vents are open and not covered by furniture. Your entire house will benefit from improved airflow.


Regular Maintenance

It’s simple but true. Regular maintenance ensures that your system is running as efficiently as possible. A reliable technician will make sure your vents and filters are clean and your unit does not have any underlying issues.


At All American we want what’s best for our customers and their wallets. With these tips, you’ll not only feel more comfortable in your home but also enhance the efficiency and longevity of your HVAC unit.