Nov 21, 2025

What to Do If the Heat Goes Out

What to Do If the Heat Goes Out

For anyone living in colder climates – especially in Aurora, Oswego, Plainfield, Naperville, or Lisle – one of the biggest worries during winter is waking up to a cold, silent house. At first, the quiet feels strange. Then it hits you: the familiar hum of the heating system is gone. Maybe there’s a faint ignition click, but no warm air follows. The air in the house begins to feel different. Heavier somehow, as if the warmth has quietly slipped away. You wait another second, try again, and realize it’s not coming back this time. The furnace has stopped.

It’s never a pleasant moment. Still, every homeowner experiences this thing sooner or later. But you can handle it – and stay safe. Later, you might even laugh while telling friends about “that night when the heat went out.” The key is to stay calm. Act like someone who knows what to do when the heat goes out. Take a breath, grab a flashlight if needed, and start troubleshooting step by step.

Check the thermostat first – Is it set correctly? Listen for any ignition sounds. Inspect your circuit breakers or power switches. Sometimes, the fix is surprisingly simple. When the temperature drops inside, remember: quick, confident action can make all the difference in keeping your house warm and your family safe.

how to stay warm when furnace goes out


Calm Down and Start Hunting For the Cause

Many homeowners don’t know what steps to do when your heat goes out, so it’s good to have a plan. Before calling anyone, take a slow breath. Then start checking the furnace components one by one. If your heating suddenly stops out, check the thermostat and power supply before calling a technician. Make sure the thermostat is actually set to “Heat”. You’d be surprised how many times this little switch gets accidentally pressed. Try raising the temperature a few degrees – if the furnace doesn’t respond, go to the distribution box and look for a tripped breaker or blown fuse. Then simply flip it back. Sometimes, the heating can fail to blow out if the pilot light goes out or a breaker trips.

Still nothing? Remove the filter and take a look at it. If it’s gray or dusty, it means your furnace can’t breathe. Replace it. Then check the pilot light – if it’s out and you can safely re-light it, do so (instructions should be on the furnace panel). But if you smell gas, don’t think twice – close the valve, leave the house, and call a professional. Safety always trumps courage.

How to Keep Your House Warm if the Furnace isn’t Working

If the furnace still refuses to turn on, you’ll have to figure out how to preserve the heat that’s already in the house. Start closing the doors to unused rooms to heat less space. Seal them. Even towels at the bottom of the door will help – this will effectively create a thermos for warm air.

If it’s a sunny day, use the light. Open the blinds during the day to capture some natural heat, then close everything tightly when the sun goes down. Put rugs on the tiles, move the sofa away from the window where there are drafts, hang blankets if necessary. It may look funny, but it’s about survival.

Many homeowners wonder how best to heat their home when the furnace goes out. How about baking something yummy? Warm bread, cookies – anything. The oven (after you turn it off) will give you an amazing amount of comfort. Just don’t use it as a heater, it’s dangerous.

Safe Ways to Keep Rooms Warm Without the Furnace

You may be tempted to light all the candles in the house or bring the grill indoors – don’t do it. It’s very dangerous. Use safe, certified heating devices.

Electric heaters work great, just give them space – three feet away from curtains or any flammable objects. Plug them directly into an outlet, never into an extension cord. Move them between rooms and never leave them on while you sleep.

Got a gas fireplace? Check the pilot light. Make sure the vent is open, and let it burn cleanly. Always think about carbon monoxide first – if you feel dizzy or lightheaded, turn it off and get outside quickly.

How to Stay Warm in a House Without Heat

If you just sit and do nothing, a house without heating will feel like a refrigerator. It’s not that the room is too cold – it’s that you’ve already gotten too cold yourself. To keep from freezing, wear several layers of clothing – thin first, then thicker. Don’t forget wool socks. And a hat – yes, even indoors. Move around more, even if you don’t need to. Fold laundry, walk around, do squats, dance – do anything that promotes blood circulation.

Food matters too. Eat something warm – soup, oatmeal, tea. And prepare homemade heat packs. Fill plastic bottles with hot water and put them in bed before going to sleep. These hot water bottles will keep you warm if the heating isn’t working.

If you’re not alone, snuggle up together. It’s honestly amazing how much warmth a few people can create under one blanket. Our bodies give off more heat than we realize, and when you’re close, it adds up fast. Even pets help – a cat or dog curled next to you is basically a little heater with fur.

Got a sleeping bag or maybe a sleeping mat lying around? Perfect. That same gear helps travelers and campers spend cold nights in the mountains, and it’ll work just as well at home. Add a few blankets underneath for extra insulation – the ground can pull away more heat than you’d think.

And here’s another fun trick: set up a tent inside. It might sound silly, but it actually works. Whether in your living room or bedroom, a tent traps your body heat and creates a small warm zone. If you’ve got kids, they’ll love it – it turns the situation into a cozy little adventure instead of a problem.

Creating that enclosed space helps retain warmth far better than heating the whole room. After all, in a confined area, our own bodies act like heaters, slowly raising the temperature. Add some pillows, a few snacks, maybe even a flashlight, and you’ve got yourself a comfortable indoor “camp” until the heat comes back.

When to Leave a Cold House

The heat fully is off, making it uncomfortable to stay inside. If you have checked everything, but the heating does not turn on, the temperature continues to drop, or you suspect the presence of carbon monoxide (headache, nausea, strange confusion), leave. Do not wait. Go to a friend’s house, a relative’s house, or the nearest warming center.

An alarming sign is “steam from your mouth”. If you can see your breath, or your phone shows that the temperature in the room is below 50 degrees, then it’s definitely time to go to a warmer place.

Before leaving, turn off the main gas valve, open the taps slightly to prevent the pipes from freezing, and take everything you need with you – medicines, phone, chargers, pets. You can always come back when everything is fixed.

heat is out


Prepare for “Next Time” (Because Next Time Comes Often)

Every winter, technicians respond to emergency calls to homes where furnaces have suddenly stopped working. Sometimes it is the same furnace users. Every year, they promise themselves that they will do everything to prevent this situation from happening again. Time passes, and everything repeats itself. So get ready now. Ask a technician to check your stove before the cold weather sets in. Change the filter regularly, keep spare fuses on hand, check the thermostat, and reset it if necessary.

Put together a “cold night” box with candles, flashlights, extra blankets, snacks, and a phone charger. Check your smoke and carbon monoxide detectors once a month. And maybe save the number of your favorite heating, ventilation, and air conditioning specialist in your “lifesavers” section.

Advice from Rocky Mountain HVAC in Utah

Our technicians know that when the heat goes out, everything stops. That’s why at Rocky Mountain HVAC, we treat no-heat calls as emergencies. Whether it’s a dirty filter, a faulty igniter, or a malfunctioning switch, our team knows how to fix the issue quickly and prevent it from happening again.

If your furnace has broken down or is simply not working properly, contact us. Proper heater regular maintenance is essential, so always contact a professional before the cold season. We will safely and quickly restore comfort to your home so that you are ready for the next winter wind. After all, your home should stay warm, even when it’s cold outside.