How long will an EcoFlow RIVER 3 run a heated clothes airer?
About an hour — 35 min typically, from 32 min in the worst case to 37 min at best. That assumes a heated clothes airer pulling 300 W continuously, plus the station's 8 W AC mains socket overhead — 308 W in total out of 178 usable watt-hours.
No thermostat on most models, so it draws its full rating for as long as it is on — a cover over the load dries it faster and saves hours.
The numbers
| Setup | Average draw | Cautious | Typical | Best case |
|---|---|---|---|---|
| 1 × heated clothes airer, UK 230 V | 308 W | 32 min | 35 min | 37 min |
| 2 × heated clothes airer, UK 230 V | 608 W | — | — | — |
| 1 × heated clothes airer, US 120 V | 308 W | 32 min | 35 min | 37 min |
- 0.1 nights of eight hours, or 0.02 days of continuous running.
- Usable energy: 178 Wh of the 245 Wh on the box, after chemistry, inverter losses and the reserve.
- To keep it going for a full 24 hours you would need about 10,171 Wh of rated capacity — 41.5× this station.
- Start-up: the heated clothes airer asks for 300 W at switch-on against this station's 600 W peak — comfortable.
Buy the EcoFlow RIVER 3
Where to buy
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What changes the answer
| If instead… | Typical runtime | Change |
|---|---|---|
| The pack is two years old | 32 min | -9% |
| The pack is five years old | 28 min | -21% |
| It is −10 °C outside | 29 min | -16% |
| You run it flat, no reserve | 38 min | +10% |
| You keep 20% back | 31 min | -12% |
If you need it to run longer
These run a heated clothes airer for at least twice as long as the EcoFlow RIVER 3 does, cheapest first.
| Station | Wh | Typical | Indicative price |
|---|---|---|---|
| DJI Power 500 | 512 | 1 h 12 min | £399 / $449 |
| Jackery Explorer 1000 v2 | 1,070 | 2 h 31 min | £419 / $549 |
| EcoFlow RIVER 2 Max | 512 | 1 h 12 min | £449 / $349 |
| UGREEN PowerRoam 600 | 680 | 1 h 36 min | £449 / $499 |
Smaller options that still work
Nothing smaller than the EcoFlow RIVER 3 runs a heated clothes airer for a useful length of time.
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