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Testing note: We haven’t bench-tested these stations with a heater or heated bedding. Specs come from each maker’s product page or manual, checked Oct 18, 2026. Runtimes are our estimates.
Updated for winter 2026–27: NOAA’s winter outlook (Oct. 15, 2026) gives odds for the season as a whole, not for single cold snaps. Charge your station before the first hard freeze, and watch for the National Weather Service’s Extreme Cold Watches and Warnings.
Bottom line: Yes, but not for long. A ~1 kWh power station runs a 1,500 W space heater for about 35 to 39 minutes and a 750 W setting for a little over an hour. That’s a warm-up, not a night. What keeps a household warm on battery is insulating people, not rooms: layers, sleeping bags, one closed-off warm room, and low-watt heated bedding where its manual allows it. If you burn anything for heat, a battery-powered CO alarm comes first.
- Most battery of the three we cover: the BLUETTI AC180 (1,152 Wh). Check on Amazon
- Room to add battery later: the EcoFlow DELTA 3 Plus, expandable to about 5 kWh per EcoFlow. Check on Amazon
- For the warm room: a First Alert CO710 CO alarm runs on a sealed 10-year battery, so it keeps working when the power’s out, and its display shows the room temperature (First Alert). Check on Amazon
The math: a space heater vs. a ~1 kWh battery
Portable electric space heaters typically draw 750 to 1,500 W (Virginia Cooperative Extension). Check the label on yours for its low and high settings.
We use Jackery’s planning formula, capacity × 0.85 ÷ watts (Jackery), for all three stations as our own estimate. The 0.85 covers conversion losses in the station’s AC inverter.
Example for the DELTA 3 Plus on high: 1,024 Wh × 0.85 = 870 Wh, and 870 ÷ 1,500 = 0.58 hours, or about 35 minutes.
Check the inverter, not just the battery
The heater also has to fit under the station’s continuous (rated) AC output:
- DELTA 3 Plus: 1,800 W rated. A 1,500 W heater fits with room to spare. EcoFlow’s X-Boost mode can run heating appliances above that (up to 2,200 W on this model) by lowering the voltage, so the heater runs at reduced power (EcoFlow, EcoFlow X-Boost).
- AC180: 1,800 W rated. Fits. BLUETTI’s Power Lifting mode can run heating devices up to 2,700 W (BLUETTI).
- Explorer 1000 v2: 1,500 W rated (3,000 W surge). A 1,500 W heater sits right at its limit, with no headroom (Jackery). Use the low setting.
Boost modes don’t add battery, so they don’t make any of these runtimes longer.
Why that’s short
One hour of a 1,500 W heater uses 1,500 Wh, more than the whole battery in any of these stations. Even a DELTA 3 Plus expanded to its full ~5 kWh would give a 750 W heater about 5.7 hours by the same formula (5,000 × 0.85 ÷ 750). That’s still not a night, and it’s a much bigger battery bank.
Solar doesn’t close the gap either. The rated maximum solar input is 1,000 W on the DELTA 3 Plus (2 × 500 W), 500 W on the AC180, and 400 W on the Explorer 1000 v2, per each maker. All three are below a 1,500 W heater’s draw, and winter sun rarely delivers a panel’s full rating.
Gas furnace? Its blower motor is hardwired, so you can’t plug it into a station. Powering it takes a properly installed transfer switch or inlet by a licensed electrician. Our sizing guide covers the numbers, and our guide to running a gas furnace on a power station covers the watts, runtimes, and safe hookup.
What works better on battery: heat the person
Heated bedding warms you directly, so it needs a small fraction of a heater’s power. Sunbeam lists 100 W for its 50″ x 60″ heated throw (Sunbeam) and its twin-to-queen heated blanket (Sunbeam), and 110 W for its queen heated mattress pad (Sunbeam). That’s roughly 8 to 10 hours per charge in the chart above, at the full rated wattage. A lower heat setting may draw less, but we haven’t measured it.
Read the manual before you plug it into a station
This is the catch. Sunbeam’s 2026 heated bedding manual says not to use its products with generators, power converters, or inverters, and to plug them into a wall outlet, not an extension cord or adapter (Sunbeam manual). A power station’s AC outlet comes from an inverter. So the math works, but for Sunbeam bedding the maker says no, and their manual wins.
What to do with that:
- Check your own blanket’s or pad’s manual for an inverter or generator warning before outage season, not during the outage.
- If it allows inverter use, plug it straight into the station’s AC outlet, on the lowest setting that keeps you comfortable.
- Consider bedding built for battery power. Sunbeam’s own On-the-Go cordless heated throw runs from its 10,000 mAh battery pack for about 4 hours on warm and 2 hours on high, per its manual (Sunbeam On-the-Go manual). Charge it with its included charger before the storm.
- 12 V car blankets are designed for DC power, and all three stations have a 12 V, 10 A car outlet (EcoFlow lists 126 W max). Check the blanket’s watts, its auto-off timer, and whether its maker says it’s OK for overnight use. Our 12 V heated blanket picks compare three at 48 W with auto-off timers.
Sunbeam’s manual also says not to use heated bedding with an infant or child, or anyone who can’t feel heat well or work the controls, and not to tuck in or pinch the heated area.
Low-tech warmth that needs no power
Electric bedding is a bonus. This is the backbone of the plan:
- Sleeping bags and extra blankets for everyone. The CDC lists extra blankets, sleeping bags, and warm coats first among backup heat sources for an outage (CDC).
- Layers that trap heat: wool, silk, or polypropylene next to the skin (they hold more heat than cotton), fleece or down in the middle, and stay dry (CDC).
- Hats and wool socks, day and night.
- Warm, sweet drinks or broth, and skip alcohol and caffeine. The CDC says they make your body lose heat faster.
Set up one warm room
Pick one smaller room, ideally on an interior wall with few windows, move everyone there, and follow the CDC’s heat-saving steps (CDC). Keep the power station in that room, not a cold garage, because its charging range stops at freezing (BLUETTI, Jackery). Our emergency light bulb guide covers lights that come on by themselves.
Watch people, not just the thermostat. A body temperature below 95°F is a medical emergency. Signs of hypothermia include shivering, exhaustion, confusion, fumbling hands, memory loss, slurred speech, and drowsiness (CDC). The CDC says infants under one should never sleep in a cold room. Use sleep sacks or footed pajamas instead of loose bedding, and if you can’t keep the home warm, go somewhere that’s warm. Local officials can point you to a warming center (Ready.gov).
If you heat with fuel: carbon monoxide comes first
Each year more than 400 Americans die from unintentional CO poisoning not linked to fires, per the CDC (CDC). CO has no color or smell.
Never use these inside the home, basement, or garage, even with a door or window open:
- Generators. Run them outdoors only, at least 20 feet from the house, and not on a porch or in a carport (CPSC).
- Charcoal or gas grills, and camp stoves (CDC).
- Portable flameless chemical heaters (CDC).
- Your gas oven or stove, for heat (CDC).
- A running car in an attached garage, even with the garage door open (CDC).
Fuel-burning heaters: use one indoors only if its manufacturer specifically rates it for indoor use, and follow its ventilation instructions exactly. The CDC says to use fireplaces, wood stoves, and other combustion heaters only if they’re properly vented to the outside, to make sure you have proper ventilation if you must use a kerosene heater, to check with your local fire department that kerosene heaters are legal where you live, and to use only the fuel the heater is designed for (CDC). A heater labeled for camping or outdoor use stays outside.
CO alarms: the CPSC says to install battery-operated or battery-backup CO alarms on each level and outside sleeping areas, test them monthly, and get outside and call 911 if one sounds. Interconnected alarms are best. Also clear snow from outside vents for furnaces and other fuel-burning appliances (CPSC). A hardwired alarm with no battery backup goes quiet in an outage. A sealed-battery unit like the First Alert CO710 keeps working: First Alert lists an electrochemical sensor, an 85 dB alarm, and UL 2034 listing (First Alert). It’s a tabletop unit, so set it in the warm room. For every level of the house, see our CO alarm picks.
Space heater fire safety
Whether a heater runs on the grid, a generator, or a few minutes of battery:
- Keep it at least 3 feet from beds, curtains, sofas, papers, and anything else that can burn, on a stable, level surface (CPSC).
- Never use a power strip, and don’t run the cord under rugs. The CPSC says to use a wall outlet. On a station, plug it straight into the AC outlet and follow both manuals.
- Turn it off when you leave the room or go to bed (USFA). Pick models with automatic shut-off (CDC).
Quick checklist
- ☐ Sleeping bag or heavy blankets, a hat, and wool socks for each person
- ☐ One warm room picked, with towels for door gaps and blankets for windows
- ☐ Battery-operated or battery-backup CO alarms on every level and outside sleeping areas, tested monthly
- ☐ Heated bedding manual checked for an inverter or generator warning
- ☐ Power station charged, stored in the warm room, and planned for heated bedding, phones, and lights, not a space heater
- ☐ Space heater (grid power only): 3 ft clearance, auto shut-off, no power strip, off at bedtime
- ☐ Generator and grill spots outdoors, at least 20 ft from the house
- ☐ Know the hypothermia signs and where your nearest warming center is
FAQ
Can you run a space heater on a power station overnight?
Not on a ~1 kWh station. At 1,500 W it lasts about 35 to 39 minutes, and at 750 W a little over an hour. Plan the night around blankets, sleeping bags, and heated bedding where its manual allows.
Is a bigger power station the answer?
It helps less than you’d think. Even about 5 kWh of battery runs a 750 W heater for roughly 5.7 hours by our math. A battery is better spent on the fridge, a CPAP, phones, and lights. See power station vs. gas generator for when a generator makes sense.
Can you use an electric blanket on a power station?
The wattage is a good fit, about 100 W for a Sunbeam blanket. But Sunbeam’s manual says not to use its heated bedding with inverters or generators, and a station’s AC outlet is an inverter. Check your blanket’s manual first. A battery-powered heated throw or a 12 V blanket made for DC power avoids the issue.
Can you use a propane heater indoors?
Only if its manufacturer rates it for indoor use, you follow its ventilation instructions, and you have a working battery-powered CO alarm nearby. Camp heaters, grills, and generators never come indoors. Our indoor-safe propane heater picks cover the maker’s rules: 1 lb cylinders, fresh air, and never while sleeping.
How cold is too cold inside?
Watch for shivering, confusion, and drowsiness, and take anyone’s temperature if you’re worried. Below 95°F is an emergency. If you can’t keep the warm room warm, especially with a baby or an older adult at home, go to a warming center or somewhere with heat.
The stations and the CO alarm are on our Gear page. For the rest of your winter plan, use the winter storm power outage checklist, our winter storm outage lessons, and the power station sizing guide. For the summer side, see running fans and a window AC on a power station.
Specs checked Oct 18, 2026, from EcoFlow, BLUETTI, Jackery, Sunbeam, and First Alert product pages and manuals. Safety guidance from the CDC, CPSC, NFPA, and Ready.gov. Runtimes are our estimates, not manufacturer claims. If a maker updates a spec, their page wins. This is general information, not electrical or medical advice.