Generator size by appliance
Pick an appliance to see exactly what size generator it needs — running watts, starting-watt surge, and real unit recommendations.
- Refrigerator / Freezer3,000W
- Chest / Upright Freezer2,000W
- Well Pump (1/2 HP)2,000W
- Well Pump (1 HP)3,000W
- Sump Pump (1/2 HP)3,000W
- Furnace Blower Fan (1/2 HP)3,000W
- Window AC — 6,000 BTU3,000W
- Window AC — 10,000 BTU4,000W
- Central AC — per ton5,000W
- Electric Space Heater2,000W
- Electric Water Heater (tank)4,000W
- Washing Machine3,000W
- Electric Clothes Dryer6,500W
- Electric Oven3,000W
- Microwave (1000W)2,000W
- Dishwasher2,000W
- Garage Door Opener (1/2 HP)2,000W
- CPAP Machine2,000W
- RV Rooftop AC — 13,500 BTU3,500W
- RV Rooftop AC — 15,000 BTU5,000W
- RV Refrigerator2,000W
- Air Compressor (1.5 HP)3,000W
- Table Saw5,000W
- Circular Saw (7-1/4")3,000W