How to Stay Warm During a Power Outage

What Should You Do First When the Heat Goes Out?

Check everyone in the household, then check the utility’s outage updates and local weather alerts. Someone who is already struggling with the cold needs help sooner than someone who is comfortable in extra layers. Give particular attention to infants, older adults and people with health or mobility needs.

Bring flashlights, a charged phone, medications, dry clothing and bedding into the room you plan to use. Contact a friend, relative or community warming center while you still have communications and a safe way to travel. Knowing where you can go makes the next decision easier if conditions worsen.

How Can You Stay Warm Without Electricity?

Create a Warm Zone in One Room

Choose a room large enough for everyone but manageable to keep comfortable. Look for fewer drafts, usable floor space and access to an exit. Close doors to unused rooms and keep trips outdoors to a minimum.

Place rolled towels or draft stoppers along leaking door gaps and window edges. Close existing curtains after dark. During daylight, let useful sunshine through the windows, then cover them again when the sun is gone. A sunny room can help, but a badly leaking south-facing room may be less comfortable than a sheltered one elsewhere in the house.

Keep essential ventilation, combustion-air openings and exits clear. Concentrating your supplies and activities in one room should make the household easier to care for, not seal it into an airtight space.

Keep Your Body Warm and Dry

Wear loose, dry layers that you can adjust, with warm socks and head or hand coverings as needed. Add blankets when sitting still, and change damp clothing rather than piling more layers over it.

Gentle movement can help you feel warmer, but avoid working hard enough to become sweaty. Have food and warm drinks when you can prepare them safely, and avoid alcohol. A hot drink adds comfort; it does not make prolonged exposure to cold safe.

Use a sleeping bag or substantial bedding rather than relying on an emergency blanket alone. Reflective emergency blankets can supplement the supplies you already have.

Set Up a Warmer Sleeping Space

Arrange sleeping bags, blankets and an insulating layer beneath your sleeping surface before the room becomes colder. Keep dry nighttime clothing within reach.

A small camping tent set up indoors is an optional way to create a more sheltered sleeping space within your warm zone. Consumer Reports includes indoor camping among its outage-warmth suggestions. Keep the tent’s ventilation and the room’s exit route open, and keep heaters, candles and fuel-burning equipment out of it. A tent is an extra layer of shelter, not a guarantee that staying home overnight is safe. Follow infant safe-sleep guidance rather than improvising a blanket fort or adding loose bedding around a baby.

If you already have a safe source of hot water, a purpose-made hot-water bottle can provide local warmth. Inspect it for damage or leaks, follow its instructions, use a cover and avoid lying on it. Do not fill it with boiling water or substitute an ordinary plastic drink bottle. The Child Accident Prevention Trust’s bottle-safety guidance also advises keeping hot-water bottles out of babies’ sleep spaces. Never bring a camp stove or grill indoors to heat the water.

How Long Will Your House Stay Warm Without Power?

There is no reliable number of hours that applies to every home. A house loses heat differently depending on outdoor temperature, wind, insulation, air leaks, building construction, starting indoor temperature and sunshine.

Use an indoor thermometer to follow conditions in the room you occupy, and check how everyone is coping. Reassess when the forecast changes or an estimated restoration time moves back. Do not assume that a neighbor’s experience, your home’s size or the number of blankets you own predicts your cooling rate.

Keeping a building above freezing is also different from keeping its occupants safely warm. Plan around people’s needs rather than waiting for the house to reach a particular temperature.

Which Alternative Heat Sources Can You Use Safely?

Use Existing Fireplaces or Installed Heaters as Directed

A maintained fireplace, wood stove or other approved installed heater may provide heat when your usual system stops. Use it only as intended for that installation, with the required ventilation, clearances and working smoke and carbon monoxide alarms. Some gas heating equipment still needs electricity for controls or fans.

Never use an oven, grill, outdoor heater or camp stove to heat your home. A cracked window does not make outdoor combustion equipment safe indoors. If you use a portable fuel-powered generator, keep it outdoors at least 20 feet from the home, with exhaust directed away from nearby buildings, as specified in CPSC winter-heating guidance.

Understand the Limits of Electric Heat on a Battery

Electric room heating uses a large amount of energy. Warming one person with a suitable personal-warmth device can require much less, which matters when stored electricity is limited.

The comparison below uses hypothetical average loads over the same eight-hour period. These are energy examples, not tested devices or recommendations to run a heater while sleeping.

Load energy (Wh) = average load (W) × time (hours).

Actual average consumption can differ from the nameplate rating because of controls and cycling. Battery demand also includes conversion losses, power-station self-consumption and any other devices connected.

Check compatibility before connecting a heating device. CPSC directs users to plug portable electric space heaters into a wall outlet, never an extension cord or power strip, keep them at least three feet from combustible materials and turn them off when sleeping. A power station’s wattage rating alone does not establish permission to use a heater with it. Heated bedding has its own supply and safe-use requirements, too.

How Can Backup Power Support Your Warmth Plan?

Give limited electricity a clear job: keeping compatible lights, phones and communications equipment working, plus personal-warmth devices whose instructions permit the setup. These loads can support your household while you conserve heat or arrange transport.

BLUETTI Elite 300 combines 3,014.4 Wh of nominal battery capacity with 2,400 W of rated AC output. That gives you a substantial energy reserve to prioritize compatible LED lighting, phone charging and communications equipment when household heat is unavailable. Capacity determines the energy available; output determines the electrical load the station can supply. Plan around your actual devices, their combined demand and their permitted power source.

When comparing portable power stations, check operating temperatures alongside watts and watt-hours. Keep the equipment in a suitable, dry location with its ventilation clear.

An installed furnace needs a separate assessment. Have a qualified professional check its supply, controls, grounding and approved transfer arrangement. Never feed backup electricity into a household outlet or assume that every furnace can simply plug into a station.

When Should You Leave for a Heated Location?

Leave when you cannot maintain safe warmth, someone is struggling with the cold, essential medical needs cannot be met or officials advise moving. Make arrangements while everyone can still travel safely; do not wait for a preset indoor temperature or a promised restoration time.

The CDC’s power-outage guidance advises seeking shelter with friends or at a community shelter when conditions are too cold. Hypothermia is a medical emergency: seek urgent help if you suspect it.

Call ahead to confirm that a warming center is operating and can accommodate your household’s needs. If travel is unsafe, contact local emergency services or community assistance rather than attempting a dangerous trip.

How Can You Prepare for a Multiday Winter Outage?

Use a three-day outage as a planning exercise: what would you need to replace, recharge or change if power did not return tomorrow? As the outage continues, reassess indoor conditions, remaining supplies and recharge options, and whether your planned heated accommodation is still available.

• Keep dry clothing, blankets and suitable sleeping bags accessible.

• Gather flashlights, phone charging options and battery-backed alarms.

• Check heating-equipment instructions and any planned backup connections before a storm.

• Plan essential food, water, medications and support for household members who need assistance.

• Identify safe recharge opportunities and a heated place to stay if necessary.

• Keep utility updates, support contacts and transport arrangements available offline.

• Review exposed plumbing and food-storage arrangements separately so they do not distract from keeping people warm.

The American Red Cross recommends a support network and a stay-or-go plan. Preparing for several days means having alternatives available, including leaving earlier; it does not mean committing to remain in an unheated home for 72 hours.