Compare
1800 vs 3200 vs 6800 W inverter classes
Compare inverter generator class ceilings against GenSize estimates, with verified VEVOR US product examples and an honest NO_MATCH path.
| Class | Clears when | Typical fit | Trade-off |
|---|---|---|---|
| 1800 / 2900 W | running ≤ 1800 and surge ≤ 2900 | Light camping / small electronics and modest motor starts | Too small for many fridge+tool or RV AC starts |
| 3200 / 4200 W | running ≤ 3200 and surge ≤ 4200 | Mid home-backup / outdoor loads that clear 1800/2900 | Still short of larger multi-appliance or big compressor peaks |
| 6800 / 10000 W | running ≤ 6800 and surge ≤ 10000 | Heavier loads that clear 3200/4200 but stay within 6.8/10 kW | Largest class on this ladder; verify live listing; still not whole-home design |
| NO_MATCH (above ladder) | running > 6800 or surge > 10000 | Loads beyond this site’s published inverter ceiling | Do not force a 6.8 kW class — reduce loads or size up outside this screen |