How long will an EcoFlow DELTA Pro 3 run a heated clothes airer?
About 9.3 hours — 9 h 18 min typically, from 8 h 46 min in the worst case to 9 h 51 min at best. That assumes a heated clothes airer pulling 300 W continuously, plus the station's 20 W AC mains socket overhead — 320 W in total out of 2,977 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 | 320 W | 8 h 46 min | 9 h 18 min | 9 h 51 min |
| 2 × heated clothes airer, UK 230 V | 620 W | 4 h 31 min | 4 h 48 min | 5 h 5 min |
| 1 × heated clothes airer, US 120 V | 320 W | 8 h 46 min | 9 h 18 min | 9 h 51 min |
- 1.2 nights of eight hours, or 0.39 days of continuous running.
- Usable energy: 2,977 Wh of the 4,096 Wh on the box, after chemistry, inverter losses and the reserve.
- To keep it going for a full 24 hours you would need about 10,568 Wh of rated capacity — 2.6× this station.
- Start-up: the heated clothes airer asks for 300 W at switch-on against this station's 8,000 W peak — comfortable.
Buy the EcoFlow DELTA Pro 3
Where to buy
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What changes the answer
| If instead… | Typical runtime | Change |
|---|---|---|
| The pack is two years old | 8 h 34 min | -8% |
| The pack is five years old | 7 h 26 min | -20% |
| It is −10 °C outside | 7 h 55 min | -15% |
| You run it flat, no reserve | 10 h 20 min | +11% |
| You keep 20% back | 8 h 16 min | -11% |
If you need it to run longer
Nothing in this catalogue runs a heated clothes airer for twice as long as the EcoFlow DELTA Pro 3. Either it is already near the top of the range, or this appliance is beyond what portable batteries do well — see the heated clothes airer page for the full ranking.
Smaller options that still work
| Station | Wh | Typical | Weight | Indicative price |
|---|---|---|---|---|
| Goal Zero Yeti PRO 4000 | 3,993 | 9 h 8 min | 52.5 kg | — / $4,000 |
| Anker SOLIX F3800 | 3,840 | 8 h 47 min | 60 kg | £2,999 / $3,499 |
| EcoFlow DELTA Pro | 3,600 | 8 h 14 min | 45 kg | £2,499 / $2,699 |
| Anker SOLIX F3000 | 3,072 | 7 h 4 min | 41.5 kg | £1,899 / $1,999 |
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