Appliance · Hvac
How many watts does a 1,500 W space heater use — and what can run it?
A 1,500 W ceramic space heater (Lasko 754200): 1,500 W high, 900 W low, no surge. Which power stations and generators run it, and for how long.
Resistive heating element (plus a small fan); no starting surge listed. The thermostat cycles the element, but no published average exists, so the calculator uses the 1,500 W high setting.
The representative model is the Lasko 754200 ceramic heater. Lasko's spec sheet lists two heat settings: high at 1,500 W and 12.7 A, low at 900 W and 7.0 A. The tables use the high setting. Other heaters list their own settings on the rating label, and the high figure is the one to compare with a station's continuous output.
What changes the draw
The setting and the thermostat. On high the element draws 1,500 W whenever it is on; the adjustable thermostat switches it off once the room reaches the set temperature, so a small, well-sealed room cycles it more than a cold, draughty one. Lasko publishes no average, so the tables assume the element never switches off. At the page's 8 hours a day that is 12,000 Wh — more than any single power station on this site stores.
No starting surge
A ceramic element is a resistive load, Lasko lists no starting figure, and the Champion chart lists space heaters as needing no extra starting watts. Continuous output is the limit. Some stations have boost modes that run heaters above their rating; these are noted on station cards but not counted (why).
Reading the tables
Runtime is for the element on continuously at 1,500 W. Example: the EcoFlow DELTA Pro 3 record has no maker factor, so the default 0.85 applies: 4,096 Wh × 0.85 ÷ 1,500 W = 2.3 hours.
Power stations that can run it
Pass = continuous output ≥ 1500 W. Runtime = capacity × maker's factor ÷ 1500 W, nothing else plugged in. Method.
| Model | Fits | Runtime at 1500 W | Capacity | List price |
|---|---|---|---|---|
| MARBERO 88Wh Portable Power Station (M82) | No | — | 89 Wh | $119.99 |
| DARAN R100 (89.6Wh) | No | — | 90 Wh | $149.99 |
| Bluetti EB3A | No | — | 269 Wh | $219 |
| EcoFlow RIVER 3 Plus | No | — | 286 Wh | $299 |
| Anker SOLIX C300 | No | — | 288 Wh | $429.99 |
| Anker SOLIX C300 DC | No | — | 288 Wh | $349.99 |
| Jackery Explorer 300 | No | — | 292 Wh | $289 |
| Goal Zero Yeti 500 | No | — | 499 Wh | $499.95 |
| Bluetti AC70 | No | — | 768 Wh | $359 |
| Anker SOLIX C1000 Gen 2 | Yes | 35 min | 1,024 Wh | $499.99 |
| EcoFlow DELTA 3 | Yes | 35 min | 1,024 Wh | $699 |
| EcoFlow DELTA 3 Classic | Yes | 35 min | 1,024 Wh | $599 |
| EcoFlow DELTA 3 Plus | Yes | 35 min | 1,024 Wh | $799 |
| Anker SOLIX C1000X | Yes | 36 min | 1,056 Wh | $469.99 |
| Jackery Explorer 1000 v2 | Yes | 36 min | 1,070 Wh | $559 |
| Bluetti AC180 | Yes | 35 min | 1,152 Wh | $499 |
| Jackery Explorer 1000 Plus | Yes | 43 min | 1,264 Wh | $699 |
| Goal Zero Yeti 1500 | Yes | 51 min | 1,505 Wh | $1,499.95 |
| Goal Zero Yeti 1500X | Yes | 52 min | 1,516 Wh | $1,124.89 |
| EcoFlow DELTA Max (2000) | Yes | 1.1 h | 2,016 Wh | — |
| Jackery Explorer 2000 v2 | Yes | 1.2 h | 2,042 Wh | $999 |
| Jackery Explorer 2000 Plus | Yes | 1.2 h | 2,043 Wh | — |
| Anker SOLIX C2000 Gen 2 | Yes | 1.2 h | 2,048 Wh | $899.99 |
| Bluetti AC200L | Yes | 1.2 h | 2,048 Wh | $899 |
| EcoFlow DELTA 2 Max | Yes | 1.2 h | 2,048 Wh | $1,299 |
| EcoFlow DELTA 3 Max | Yes | 1.2 h | 2,048 Wh | $1,199 |
| EcoFlow DELTA 3 Max Plus | Yes | 1.2 h | 2,048 Wh | $1,599 |
| Bluetti Elite 200 V2 | Yes | 1.1 h | 2,074 Wh | $899 |
| Jackery HomePower 3000 | Yes | 1.7 h | 3,072 Wh | $1,499 |
| Anker SOLIX F3800 Plus | Yes | 2.2 h | 3,840 Wh | $2,599.99 |
| EcoFlow DELTA Pro 3 | Yes | 2.3 h | 4,096 Wh | $3,299 |
Generators that can run it
| Model | Fits | Load | Published run time | CO sensor | List price |
|---|---|---|---|---|---|
| Champion 100396 3400W Electric Start Dual Fuel Inverter | Yes | 48 % (gasoline) | 7.5 h @ 25 % | No | — |
| Champion 201241 13,500W Electric Start Tri Fuel Generator | Yes | 11 % (gasoline) | 8 h @ 50 % | Yes | — |
| Champion 201319 4500W Electric Start Dual Fuel Inverter | Yes | 43 % (gasoline) | 14 h @ 25 % | Yes | — |
| DuroMax XP13000EH | Yes | 14 % (gasoline) | 17 h @ 25 % · 8 h @ 50 % | Yes | $1,299 |
| DuroMax XP9500iH | Yes | 20 % (gasoline) | 21 h @ 25 % · 11 h @ 50 % | Yes | $1,999 |
| Generac GP8000E (with COsense, model 7715) | Yes | 19 % (gasoline) | 10 h @ 50 % | Yes | — |
| Generac iQ3500 (with COsense) | Yes | 50 % (gasoline) | 14.1 h @ 25 % · 8.9 h @ 50 % | Yes | — |
| Honda EU2200i | Yes | 83 % (gasoline) | 8.1 h @ 25 % · 3.2 h @ 100 % | Yes | $1,199 |
| Honda EU3200i | Yes | 58 % (gasoline) | 8.6 h @ 25 % · 3.3 h @ 100 % | Yes | $2,799 |
| Honda EU7000iS | Yes | 27 % (gasoline) | 16 h @ 25 % · 6.4 h @ 100 % | Yes | $4,899 |
| WEN DF680iX | Yes | 29 % (gasoline) | 6.1 h @ 50 % | Yes | $803.40 |
| WEN GN400i | Yes | 43 % (gasoline) | 7 h @ 50 % | No | $479.99 |
| Westinghouse WGen7500DFc | Yes | 20 % (gasoline) | 11 h @ 25 % | Yes | $1,299 |
| Westinghouse WGen9500DF | Yes | 16 % (gasoline) | 12 h @ 25 % · 8 h @ 50 % | No | $1,249 |
| Westinghouse WGen9500DFc | Yes | 16 % (gasoline) | 12 h @ 25 % · 8 h @ 50 % | Yes | $1,399 |
| Westinghouse WGen9500DFc EFI | Yes | 16 % (gasoline) | 15 h @ 25 % · 10 h @ 50 % | Yes | $1,549 |
Frequently asked questions
How many watts does a space heater use?
Can a power station run a space heater?
How long will a power station run a 1,500 W heater?
Does a space heater need extra starting watts?
Sources
Page updated 2026-10-31.