When the power goes out in Texas, especially during storms, losing access to your HVAC system can make your home uncomfortable fast. Whether it’s hot, humid, or chilly, there are ways to maintain comfort and stay safe until your power (and your HVAC) is back up and running.

Here’s how to keep your home as comfortable as possible during a power outage:

Control Airflow and Ventilation

When your HVAC system is down, airflow is your best friend. Here’s how to make the most of it:

  • Open windows strategically: If it’s safe to do so, opwn windows on opposite sides of your home to create cross-breezes.
  • Use battery powered or solar fans: These small fans can help circulate air, especially in rooms that feel stuffy.
  • Close windows at the hottest or coldest parts of the day: In summer, close them in the afternoon to keep heat out. In winter, close them early to trap heat inside.

Block Out Heat or Cold

Your windows and doors can either help or hurt your comfort depending on how you use them.

In hot weather:

  • Close blinds and curtains during the day, especially on sun-facing windows.
  • Use blackout curtains or reflective window panels to reduce heat gain.

In cold weather:

  • Hang blankets over windows to help insulate.
  • Use door draft stoppers or rolled up towels to seal the bottoms of doors.

Manage Indoor Humidity

Without your air conditioner or heater running, indoor humidity can spike – making things feel hotter, sticky, or even musty.

  • Avoid activities that generate moisture, like long showers, boiling water, or running a dishwasher.
  • Place bowls of baking soda or charcoal around the home to help absorb moisture if the outage lasts more than a few hours.
  • If you have a battery operated dehumidifier, now’s the time to use it.

Stay Cool Without AC

If the power is out and it’s hot:

  • Drink water regularly – hydration helps your body regulate temperature.
  • Wear light, loose fitting clothing and stay in the coolest room in the house.
  • Use cool washcloths on wrists and neck for temporary relief.
  • Sleep downstairs if you can – heat rises.

Stay Warm Without Heat

If it’s cold and your HVAC is off:

  • Dress in layers, including hats and socks.
  • Use sleeping bags or extra blankets, especially at night.
  • Gather the family in one room and close off unused rooms to retain warmth.
  • Never use ovens or grills indoors to heat your home – these can be dangerous or deadly due to carbon monoxide.

Create an HVAC Emergency Kit (Before You Need It)

It’s always a good idea to be ready for the next outage. Stock your emergency HVAC kit with:

  • Flashlights and extra batteries
  • Portable fan (battery or solar powered)
  • Space heater (battery powered or generator safe)
  • Extra blankets or sleeping bags
  • Surge protector to protect your HVAC when power is restored
  • Your HVAC contractor’s contact info (that’s us!)

When the Power Comes Back….

Once the power returns, give your HVAC system a moment before turning it back on. Check your breakers, listen for unusual noises, and change your air filter if necessary. If anything seems off, call in a professional to inspect your system.

Need Help After the Outage?

At 4 Winds AC and Heating, we’re here to make sure your system comes back strong – and stays protected from future storms. We offer inspections, emergency service, and surge protection installation across San Antonio and surrounding areas.

No power? No problem. Stay calm, stay safe – and call us when you’re ready to get your system back in action.

Call us at 830.538.9988