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Short answer: a power station can run a space heater, but not for long. A standard space heater draws up to 1,500W, so even a 1,000Wh class battery lasts well under an hour. If your goal is staying warm through a winter outage, an electric blanket (about 100-200W) gives far more warmth per watt-hour.

How the numbers work: wattages are typical ranges from manufacturer spec sheets and efficiency labels, so check the label on your own appliance. Runtimes are calculated, not lab-tested: usable energy = rated Wh × 0.85, divided by average watts.

⚡ The Numbers

• Space heater (high): up to 1,500W. US plug-in heaters are typically capped at 1,500W because of the 15-amp household circuit.
• Space heater (low): about 750W.
• Electric blanket: about 100-200W.

📊 Calculated Runtimes

Heater	EcoFlow DELTA 3 Plus	Jackery Explorer 1000 V2	Bluetti Elite 200 V2	EcoFlow DELTA Pro	Bluetti EB3A
Space heater, high (1,500W)	0.6 h	0.6 h	1.2 h	2.0 h	0.2 h
Space heater, low (750W)	1.2 h	1.2 h	2.4 h	4.1 h	0.3 h
Electric blanket (200W)	4.4 h	4.5 h	8.8 h	15.3 h	1.1 h
Electric blanket, lower setting (100W)	8.7 h	9.1 h	17.6 h	30.6 h	2.3 h

What this means: a 1,000Wh class unit gives about 35 to 40 minutes of a full-power heater. The same battery runs a blanket for most of a night. Heating one person is far cheaper than heating a room.

⚠️ Watch the Output Rating

A 1,500W heater on a power station with a 1,500W continuous rating (like the Jackery Explorer 1000 V2) leaves no headroom, so it may trip or run unreliably. The EcoFlow DELTA 3 Plus (1,800W) and Bluetti Elite 200 V2 (2,600W) have more margin. Resistive loads like heaters do not need a motor surge, but they do need a high continuous rating.

🔥 Safety Rules for Winter Outages

• Never use a gas stove, oven, charcoal grill or camp stove to heat your home. The CDC warns these produce carbon monoxide.
• Never run a generator inside or in an attached garage. Keep fuel-burning generators more than 20 feet from windows, doors and vents.
• Install battery-powered CO alarms near sleeping areas.
• Keep space heaters away from flammables and never leave them running unattended.

For the full plan, read our guide to staying warm in a winter power outage.

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🔗 Related Guides

• Stay warm in a winter power outage
• Furnace blower watts
• Store a solar generator in winter
• Full appliance wattage guide

❓ Frequently Asked Questions

Can a portable power station run a space heater?

Yes, if its continuous output rating is above the heater’s wattage, but a 1,500W heater drains most power stations in well under an hour. A 1,000Wh class unit gives about 35 to 40 minutes of full power.

How many watts does a space heater use?

Up to 1,500W on high, which is the usual cap for plug-in heaters on a 15-amp circuit, and about 750W on low.

Is an electric blanket better than a space heater on battery power?

For one person, yes. An electric blanket draws about 100-200W, so it can run for most of a night on a 1,000Wh class unit, while a 1,500W heater cannot.

How long will a power station run an electric blanket?

At 200W, roughly 4 to 5 hours on a 1,000Wh class unit; at 100W, roughly 9 hours (calculated using 85% usable capacity).

Is it safe to use a gas stove for heat during an outage?

No. The CDC warns that gas stoves, ovens, grills and camp stoves produce carbon monoxide and should never be used to heat a home.