As temperatures soar in the summer, it’s tempting to run the air conditioner nonstop—but that comfort often comes with a hefty electricity bill. Thankfully, there are practical ways to keep your home cool while keeping energy costs under control.

Air conditioners are practically essential during the hot season, but many households face a dramatic spike in their electricity bills once the weather heats up. In some cases, bills have jumped by 50% or even more, simply from extended air conditioner use.

So how can you stay cool without paying a fortune? Energy experts suggest these practical tips for using air conditioners more efficiently:

1. Set the Temperature Wisely and Avoid Frequent On-Off Cycles

A common mistake is blasting the air conditioner at its coldest setting right away. While this cools the room quickly, it forces the unit to work harder and consume significantly more energy.

Every 5°C drop below a moderate setting can increase power usage by up to 40%. Instead, aim for around 23–25°C during the day and 25–28°C at night to strike a balance between comfort and efficiency.

Avoid the habit of turning the AC on and off throughout the day. Restarting the unit repeatedly uses more energy and shortens its lifespan. It’s better to keep it running at a steady, moderate level.

2. Let the Fan Run on Auto

Instead of setting the fan to blow air in a fixed direction, use the automatic setting. This allows the unit to adjust airflow as needed and distribute cool air more evenly, making the system more energy-efficient and reducing unnecessary power use.

3. Use the Correct Cooling Mode

Some people believe that using “Dry” mode (typically marked with a water droplet symbol) can save energy. While it’s helpful in reducing humidity, it won’t cool your space effectively on very hot days. On days above 40°C, Dry mode may leave the room feeling stuffy rather than comfortable.

For efficient cooling, especially in extreme heat, always use the “Cool” mode, which is designed to maintain a set temperature and reduce both heat and humidity.

4. Pair Your AC with a Fan

Running a fan alongside your air conditioner might seem like an extra energy expense, but it actually helps circulate the cool air more efficiently. This can allow you to set the thermostat a few degrees higher while still feeling cool.

Use the fan during the first 15–20 minutes after turning on the AC to help the room cool faster, then turn it off if the temperature is stable. Fans use much less electricity than AC units, so this combo can be surprisingly energy-smart.

5. Keep Doors and Windows Closed

Open doors or windows can let cool air escape and invite in warm outdoor air, forcing the AC to work overtime. To prevent this, keep your space well-sealed while the unit is running.

Also, block direct sunlight with curtains or blinds to reduce the room’s internal temperature. Less heat entering the room means your air conditioner doesn’t have to work as hard to keep things cool.

6. Clean the Filter Regularly

Dusty filters force the air conditioner to work harder, decreasing efficiency and increasing energy use. Cleaning the filter every two weeks can improve performance and help keep your electricity bill in check.

In addition to filter cleaning, it’s a good idea to get the unit professionally serviced every 4–6 months—more often if it’s used heavily.

By following these smart practices, you can enjoy a cool, comfortable home without dreading your next energy bill. A little attention to how you use your AC can go a long way in saving money all summer long.