The chart below lists common household appliances and electrical devices that you might want to consider when computing your power needs. Add together total wattage of all appliances to determine the kW of the generator you need. Things to remember:

the initital start-up of the generator requires three times the power than the actual run load of the unit

appliances with different setting options (ie: hairdryer, iron) will have a wattage range that must be taken into account

actual wattage demand of your appliances will vary slightly between brands

the average wattage listed is an approximation only; it is best to double-check your calculations by calling our office.


Homeowner Sizing Chart
Appliances
Average Wattage
Air Conditioner (single unit) 1,000 - 3,000
Central Air 4,000 - 10,000
Clothes Dryer 4,600 - 8,000
Coffee Maker 600 - 1,500
Computer 700
Dishwasher 1,200
Furnace (oil or gas; low end/forced hot air;
 high end)
1,200 - 2,000
Hair Dryer 500 - 1,500
Iron 600 - 1,200
Light Bulbs Number of bulbs x wattage
Microwave 700 - 1,500
Radio 300
Stove Range (per burner) 1,500
Refrigerator/Freezer 1,200
Sump Pump 1,500
Television 500
Toaster 450 - 1,200
Water Heater 1,000 - 6,000
Washing Machine 400 - 1,000
Well Pump (deep well; low end/shallow well;  high end) 1,200 - 3,500

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