What size power station for an electric space heater (1,500 W)?

It needs a station with at least 1,500 W of continuous output. At the default 85% efficiency it takes about 14,118 Wh of rated capacity for 8 hours of running, and 42,353 Wh for 24 hours of running. 43 of the 54 power stations in the Enough Watts data set can power it. None of them keeps it going for 24 hours of running.

Updated October 6, 2026

1,500W
Continuous output
None
Surge to start it
14,118Wh
Capacity for 8 hours of running
42,353Wh
Capacity for 24 hours of running
43 of 54
Stations that power it

Watts

Typical figures for this type, from the sources at the foot of this page. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

Running, typical: 1,500 W
Running, low to high: 750 W to 1,500 W
Starting: No start surge
Typical use a day: 8 hthe calculator starts from this, and you can change it
Average draw while on: 1,500 W
Voltage: 120 V

Explained in: Watts vs watt hours, explained, How to read an appliance label for watts and Power station or generator?.

The math

Worked with the typical figure, as the calculator does it.

Output1,500 W running, so the station's continuous output must be at least 1,500 W.
SurgeNo start surge: the running figure covers it.
Average draw1,500 W: the running watts count for every hour it is on.
A typical day1,500 W × 8 h = 12,000 Wh a day.
8 hours of running1,500 W × 8 h = 12,000 Wh usable, ÷ 0.85 = 14,118 Wh of rated capacity.
24 hours of running1,500 W × 24 h = 36,000 Wh usable, ÷ 0.85 = 42,353 Wh of rated capacity.
On the BLUETTI Elite 100 V21,024 Wh × 0.85 = 870 Wh usable, ÷ 1,500 W = 35 min.

Stations that run it

Every power station in the data with this appliance alone plugged in, at 85% efficiency. Type the running watts from your own label and the table works it out again.

Running watts

Typical 1,500 W, from 750 W to 1,500 W. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

43 of 54 power stations run it at 1,500 W.

Power stations for a electric space heater (1,500 W) at 1,500 W
Power station	Can it power it	Running time	Output	Start surge
BLUETTI Elite 100 V2	Runs it	35 min	1,800 W	3,600 W
EcoFlow DELTA 3 Classic	Runs it	35 min	1,800 W	3,600 W
Anker SOLIX C1000 Gen 2	Runs it	35 min	2,000 W	3,000 W
EcoFlow DELTA 3	Runs it	35 min	1,800 W	3,600 W
EcoFlow DELTA 3 Plus	Runs it	35 min	1,800 W	3,600 W
Pecron E1000LFP	Runs it	35 min	1,800 W	3,000 W
DJI Power 1000	Runs it	35 min	2,200 W	4,400 W
Anker SOLIX C1000	Runs it	36 min	1,800 W	2,400 W
Jackery Explorer 1000 v2	Runs it	36 min	1,500 W	3,000 W
BLUETTI AC180	Runs it	39 min	1,800 W	2,700 W
ALLPOWERS R1500	Runs it	39 min	1,800 W	3,000 W
Jackery Explorer 1000 Plus	Runs it	43 min	2,000 W	4,000 W
Goal Zero Yeti 1500	Runs it	51 min	2,000 W	3,600 W
Jackery Explorer 1500 v2	Runs it	52 min	2,000 W	4,000 W
Jackery Explorer 1500 Ultra	Runs it	52 min	1,800 W	3,600 W
ALLPOWERS R2500 V2	Runs it	1.1 h	2,500 W	4,000 W
Jackery Explorer 2000 v2	Runs it	1.2 h	2,200 W	4,400 W
Jackery HomePower 2000 Plus v2	Runs it	1.2 h	2,400 W	4,800 W
EcoFlow DELTA 3 Max	Runs it	1.2 h	2,400 W	4,800 W
Pecron E2400LFP	Runs it	1.2 h	2,400 W	4,000 W
Anker SOLIX C2000 Gen 2	Runs it	1.2 h	2,400 W	4,000 W
EcoFlow DELTA 3 Max Plus	Runs it	1.2 h	3,000 W	6,000 W
OUPES Mega 2 Pro	Runs it	1.2 h	2,500 W	not published
DJI Power 2000	Runs it	1.2 h	3,000 W	not published
BLUETTI Elite 200 V2	Runs it	1.2 h	2,600 W	not published
Anker SOLIX F2600	Runs it	1.5 h	2,400 W	2,800 W
BLUETTI Apex 300	Runs it	1.6 h	3,840 W	not published
BLUETTI Elite 300	Runs it	1.7 h	2,400 W	4,800 W
EcoFlow DELTA 3 Ultra	Runs it	1.7 h	3,600 W	7,200 W
Anker SOLIX F3000	Runs it	1.7 h	3,600 W	7,200 W
EcoFlow DELTA 3 Ultra Plus	Runs it	1.7 h	3,600 W	7,200 W
Pecron E3600LFP	Runs it	1.7 h	3,600 W	7,000 W
ALLPOWERS R3500	Runs it	1.8 h	3,200 W	6,000 W
ALLPOWERS R4000	Runs it	2.0 h	3,600 W	6,000 W
BLUETTI Elite 400	Runs it	2.2 h	2,600 W	5,200 W
Anker SOLIX F3800	Runs it	2.2 h	6,000 W	9,000 W
Anker SOLIX F3800 Plus	Runs it	2.2 h	6,000 W	9,000 W
Goal Zero Yeti PRO 4000	Runs it	2.3 h	3,600 W	7,200 W
EcoFlow DELTA Pro 3	Runs it	2.3 h	4,000 W	8,000 W
OUPES Guardian 6000 V2	Runs it	2.6 h	6,000 W	9,000 W
Jackery Explorer 5000 Plus	Runs it	2.9 h	7,200 W	14,400 W
EcoFlow DELTA Pro Ultra	Runs it	3.5 h	7,200 W	10,800 W
EcoFlow DELTA Pro Ultra X	Runs it	7.0 h	12,000 W	not published
BLUETTI Elite 10 Mini	Cannot power itNeeds 1,500 W running at once; this station gives 200 W. Needs 1,500 W to start; this station peaks at 300 W.	none	200 W	300 W
Jackery Explorer 240 v2	Cannot power itNeeds 1,500 W running at once; this station gives 300 W. Needs 1,500 W to start; this station peaks at 600 W.	none	300 W	600 W
EcoFlow RIVER 3 Plus	Cannot power itNeeds 1,500 W running at once; this station gives 600 W. Needs 1,500 W to start; this station peaks at 1,200 W.	none	600 W	1,200 W
BLUETTI Elite 30 V2	Cannot power itNeeds 1,500 W running at once; this station gives 600 W. Needs 1,500 W to start. Its surge rating is not published, and its 600 W continuous rating is lower.	none	600 W	not published
Jackery Explorer 300 v2	Cannot power itNeeds 1,500 W running at once; this station gives 300 W. Needs 1,500 W to start; this station peaks at 600 W.	none	300 W	600 W
Goal Zero Yeti 300	Cannot power itNeeds 1,500 W running at once; this station gives 350 W. Needs 1,500 W to start; this station peaks at 600 W.	none	350 W	600 W
Goal Zero Yeti 500	Cannot power itNeeds 1,500 W running at once; this station gives 500 W. Needs 1,500 W to start; this station peaks at 1,000 W.	none	500 W	1,000 W
DJI Power 500	Cannot power itNeeds 1,500 W running at once; this station gives 1,000 W. Needs 1,500 W to start. Its surge rating is not published, and its 1,000 W continuous rating is lower.	none	1,000 W	not published
Jackery Explorer 600 v2	Cannot power itNeeds 1,500 W running at once; this station gives 500 W. Needs 1,500 W to start; this station peaks at 1,000 W.	none	500 W	1,000 W
Goal Zero Yeti 700	Cannot power itNeeds 1,500 W running at once; this station gives 600 W. Needs 1,500 W to start; this station peaks at 1,000 W.	none	600 W	1,000 W
BLUETTI Elite 100 mini	Cannot power itNeeds 1,500 W running at once; this station gives 700 W. Needs 1,500 W to start; this station peaks at 1,050 W.	none	700 W	1,050 W

Add it to the runtime calculator with the rest of your list

What moves the number

A standard plug in heater draws 1,500 W on high and 750 W on low. When the room reaches the set temperature the thermostat cuts the element, so real use can fall below the hours entered. It has no motor and no start surge.

The battery is the limit: a space heater works out every station for a day of heating.

Questions

How many watts does an electric space heater (1,500 W) use?

About 1,500 W while running, from 750 W to 1,500 W across the models in our sources. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

Can a portable power station run an electric space heater (1,500 W)?

Yes. 43 of the 54 power stations in the Enough Watts data set can power it on its own. It takes at least 1,500 W of continuous output.

How long will a power station run an electric space heater (1,500 W)?

It depends on the battery. At 85% efficiency the smallest station that powers it, the BLUETTI Elite 100 V2 (1,024 Wh), gives about 35 min. The largest, the EcoFlow DELTA Pro Ultra X (12,288 Wh), gives about 7.0 h.

Does an electric space heater (1,500 W) need extra watts to start?

No. It has no motor or compressor, so it draws about its running watts from the moment it is switched on. The check that matters is a continuous output of at least 1,500 W, and a heating element draws close to that figure whenever it is on.

Setups that include it

A space heater

Sources

Researched from these pages, then checked against them a second time. The check corrected at least one figure.

Generator Wattage Chart: Common Appliances & Tools - Champion Power Equipment generator maker guide, checked October 6, 2026

We read published figures and do the math; we do not measure appliances. The methodology states every formula on this page. Capacities are rated watt hours: 1,000 Wh rated gives 850 Wh usable at the default.