Resistive heat is continuous. Catalog small heater is 750W. Large is 1500W. If the inverter is below the load, the station cannot run it.
Hours use usable watt-hours: nameplate Wh x 0.80 depth of discharge x 0.90 inverter efficiency. The 1.25 sizing buffer is for buying a new battery. It is not used for hours of a station you already own.
These loads do not cycle like a fridge. Hours are at 750W or 1500W the whole time the heater is on.
Only power stations Field Authority has signed appear here. Catalog SKUs without a lock-file row stay off this table.
| Station | Wh | Inverter W | Usable Wh | Runtime |
|---|---|---|---|---|
| EcoFlow DELTA 3 Ultra | 3072 | 3600 | 2211.8 | 2.9 hours |
| EcoFlow DELTA 3 Ultra Plus | 3072 | 3600 | 2211.8 | 2.9 hours |
| EcoFlow DELTA 3 Max | 2048 | 2400 | 1474.6 | 1.9 hours |
| EcoFlow DELTA 3 Max Plus | 2048 | 3000 | 1474.6 | 1.9 hours |
| EcoFlow DELTA Pro 3 | 4096 | 4000 | 2949.1 | 3.9 hours |
| Goal Zero Yeti 1000 Core | 983 | 1200 | 707.8 | 56 minutes |
| Goal Zero Yeti 500X | 497 | 300 | 357.8 | Cannot run. Inverter 300W, load 750W. |
| Bluetti EP500 | 5120 | 2000 | 3686.4 | 4.9 hours |
| Jackery Explorer 500 v2 | 512 | 500 | 368.6 | Cannot run. Inverter 500W, load 750W. |
| EcoFlow DELTA 3 1500 | 1536 | 1800 | 1105.9 | 1.4 hours |
| EcoFlow DELTA 3 Classic | 1024 | 1800 | 737.3 | 58 minutes |
| BLUETTI Elite 100 V2 | 1024 | 1800 | 737.3 | 58 minutes |
| BLUETTI Elite 200 V2 | 2073.6 | 2600 | 1493.0 | 1.9 hours |
| Goal Zero Yeti 1500 LFP | 1505 | 2000 | 1083.6 | 1.4 hours |
| Jackery HomePower 3000 | 3072 | 3600 | 2211.8 | 2.9 hours |
| PECRON F3000LFP | 3072 | 3600 | 2211.8 | 2.9 hours |
Open this load in the runtime calculator
| Station | Wh | Inverter W | Usable Wh | Runtime |
|---|---|---|---|---|
| EcoFlow DELTA 3 Ultra | 3072 | 3600 | 2211.8 | 1.4 hours |
| EcoFlow DELTA 3 Ultra Plus | 3072 | 3600 | 2211.8 | 1.4 hours |
| EcoFlow DELTA 3 Max | 2048 | 2400 | 1474.6 | 58 minutes |
| EcoFlow DELTA 3 Max Plus | 2048 | 3000 | 1474.6 | 58 minutes |
| EcoFlow DELTA Pro 3 | 4096 | 4000 | 2949.1 | 1.9 hours |
| Goal Zero Yeti 1000 Core | 983 | 1200 | 707.8 | Cannot run. Inverter 1200W, load 1500W. |
| Goal Zero Yeti 500X | 497 | 300 | 357.8 | Cannot run. Inverter 300W, load 1500W. |
| Bluetti EP500 | 5120 | 2000 | 3686.4 | 2.4 hours |
| Jackery Explorer 500 v2 | 512 | 500 | 368.6 | Cannot run. Inverter 500W, load 1500W. |
| EcoFlow DELTA 3 1500 | 1536 | 1800 | 1105.9 | 44 minutes |
| EcoFlow DELTA 3 Classic | 1024 | 1800 | 737.3 | 29 minutes |
| BLUETTI Elite 100 V2 | 1024 | 1800 | 737.3 | 29 minutes |
| BLUETTI Elite 200 V2 | 2073.6 | 2600 | 1493.0 | 59 minutes |
| Goal Zero Yeti 1500 LFP | 1505 | 2000 | 1083.6 | 43 minutes |
| Jackery HomePower 3000 | 3072 | 3600 | 2211.8 | 1.4 hours |
| PECRON F3000LFP | 3072 | 3600 | 2211.8 | 1.4 hours |
Open this load in the runtime calculator
Continuous inverter watts have to be at least the heater watts. A 300W inverter cannot run a 1500W heater. A 500W inverter cannot either. X-Boost is not the lock number.
If the inverter is at least 1500W, usable watt-hours are 3072 x 0.80 x 0.90, then divide by 1500. That is about 1.4 hours.
It burns a battery fast. Propane or wood heat is the usual plan. The table is here so the hours are honest before you plug one in.