Millions of Americans have been enduring record-high summer temperatures this year, and that has led to the potential for rolling blackouts in many areas, due to the added strain put on the nation’s electrical infrastructure. But being too hot isn’t just uncomfortable, it can also severely affect your family’s health.

This all sounds grim, but the good news is that a process called “supercooling” your home can help you stay safe, feel comfortable and decrease your energy bill.

Rosie Romero, host of “Rosie on the House,” a staple of Arizona talk radio since 1988, has reportedly been using the phrase supercooling for several years.

Romero’s listeners have reported saving between 25-33% on their energy bills since adopting his supercooling plan. And heating and cooling experts state that the method is also easier on your home’s HVAC system, potentially providing even more savings on expensive repairs down the road.

Romero defines supercooling as choosing the right time of day to turn on the air conditioning. The caveat to this plan is that you must have a specific type of electricity plan, which may or may not be available where you live. This is also a great time to shop around if you live in an area with multiple energy providers.

You’ll just need to learn the ins and outs of supercooling your house, apartment or other living space.

If you don’t already have a time-of-use or time-of-day plan from your electricity provider, you’ll need to switch to one before you begin. These somewhat controversial plans mean the price of your electricity changes with the time of day, making power during peak hours more costly than off-peak hours, for instance.

Once your time-of-use plan is up and running, it’s time to start supercooling.

And that’s all there is to it. Keep up this cycle throughout the summer and your home should stay plenty cool while your energy bill decreases.

Supercooling works because while you are cooling the air in your home, you’re also cooling the walls, floors, furnishings, fixtures and everything else inside. Of course, the more energy-efficient your home is, the more it will contain this coolness, helping you feel more comfortable even when you hike the thermostat up again during peak energy-cost hours.

Some tips to help navigate supercooling your home:

If variable electricity rates are unavailable for you, you can still incorporate practices that help your home feel cooler and can lower your power bill.

Before you know it, the dog days of summer will be a memory, and you’ll be making plans for fall.

This story originally appeared on Don't Waste Your Money. Checkout Don't Waste Your Money for product reviews and other great ideas to save and make money.