Inverter Generator Load Chart
Sizing the right inverter generator for your needs can be determined by adding up the combined loads of all the
devices you intend to power.
Wattage
Review the listed wattage on the device as well as the startup wattage of any motor driven devices like
refrigerators, air conditioners and pumps.
Choosing the correctly sized generator for your load not only helps to prevent damage to the generator and any
connected devices, but can also save you fuel. The chart below provides approximate load information for common
devices. The following formula voltage x amps can be used to determine watts.
| Appliance |
Watts |
| |
| Air Conditioner (Central) |
2000-5000 |
| Air Conditioner (Room) |
1000 |
| Blender |
300 |
| Blow Dryer |
1000 |
| Ceiling Fan |
10-50 |
| Clothes Dryer (Electric) |
4000 |
| Clothes Dryer (Gas) |
300-400 |
| Coffee Maker |
800 |
| Coffee Pot |
200 |
| Computer (laptop) |
40-90 |
| Computer (PC) |
100-200 |
| Computer (Printer) |
100-400 |
| Dishwasher |
1200-1500 |
| Freezer or Fridge |
900-1200 |
| Frying Pan |
1200 |
| Heater (Portable) |
1500 |
| Hot Plate |
1200 |
| Iron |
1000 |
| Microwave |
600-1500 |
| Popcorn popper |
250 |
| Satellite Dish |
30 |
| Sewer Lift Pump |
2000 |
| Sewing Machine |
100 |
| Sink waste disposal |
450 |
| Stereo |
10-30 |
| Toaster |
800-1500 |
| TV |
500 |
| Typewriter |
80-200 |
| Vacuum Cleaner |
200-700 |
| Waffle Iron |
1200 |
| Washing Machine |
500 |
| Water Heater |
4500 |
| Well Pump |
250-2000 |
 For a more accurate assessment of appliance efficiency and overall power
consumption, consider the use of an electricity usage monitor. These devices are inexpensive and can help to
cut costs as you discover which appliances and devices are consuming the most electricity. One of the most
popular units available today is the
P4400 Kill A Watt Electricity Usage Monitor manufactured by P3 International. This unit not only calculates
electrical usage but also helps to evaluate the quality of the power being provided to appliances. It can be used
to test outlets and under voltage conditions or brownouts.
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