Generator Wattage Chart & Sizing Guide
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Matthew Gerther -
August 27, 2023
Are you searching for the wattage needs of your electrical appliances to help you determine the power requirements of your generator?
Look no further! Our team has compiled the most comprehensive list of RV, camping, and household appliance wattage requirements available.
We’ve helped over 600,000 people find the information they need about generators and we’re here to help you too. Please note that these are rough estimates and it’s important to check the info-tag on your specific products to get the actual numbers.
Our data is sourced from reputable government websites, popular generator manufacturers such as Honda, Generac or Yamaha and merchants like Lowe’s, Sears and Home Depot. We add new appliances and update the numbers regularly to make this the most comprehensive resource out there.
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Household Appliances
RV & Camping Appliances
Contractors & Power Tools
#1. Home Electric Appliances
Essential Appliances
|
Household Appliances
|
Rated (Running) Watts
|
Additional Surge Watts
|
|---|---|---|
|
Evaporative AC |
2,600 W |
0 W |
|
Heat Pump |
4,700 W |
4,500 W |
|
Humidifier (13 Gal.) |
175 W |
0 W |
|
Electric Water Heater |
4,000 W |
0 W |
|
Well Water Pump (1/2 HP) |
1,000 W |
2,100 W |
|
Window AC (10,000 BTU) |
1,200 W |
3,600 W |
|
Window AC (12,000 BTU) |
3,250 W |
9,750 W |
|
Central AC (10,000 BTU) |
1,500 W |
4,500 W |
|
Central AC (24,000 BTU) |
3,800 W |
11,400 W |
|
Sump Pump (1/3 HP) |
800 W |
1,300 W |
|
Sump Pump (1/2 HP) |
1,050 W |
2,150 W |
|
Furnace Fan Blower (1/3 HP) |
700 W |
1,400 W |
|
Furnace Fan Blower (1/2 HP) |
800 W |
2,350 W |
|
Garage Door Opener (1/2 HP) |
875 W |
2,350 W |
|
Light Bulb (Common) |
75 W |
0 W |
|
Space Heater |
1,800 W |
0 W |
|
Ceiling Fan |
60 W |
70 W |
|
Dehumidifier |
240 W |
0 W |
|
Tube Light (1500mm) |
22 W |
0 W |
|
Night Light |
1 W |
0 W |
|
Electric Heater (Fan) |
2,000 W |
1,000 W |
|
Electric Thermal Radiator |
500 W |
0 W |
|
Light Bulb (LED) |
9 W |
0 W |
|
Electric Water Heater (Tankless) |
6,600 W |
2,200 W |
|
Electric Water Heater (Immersion) |
3,000 W |
0 W |
|
Oversink Water Heater (Hand Wash) |
3,000 W |
0 W |
|
Central AC (40,000 BTU) |
6,000 W |
6,700 W |
Kitchen Appliances
|
Household Appliances
|
Rated (Running) Watts
|
Additional Surge Watts
|
|---|---|---|
|
Toaster |
850 W |
0 W |
|
Microwave |
1,000 W |
0 W |
|
Refrigerator / Freezer |
700 W |
2,200 W |
|
Coffee Maker |
1,000 W |
0 W |
|
Electric Stove (8″ Element) |
2,100 W |
0 W |
|
Wine Cooler (18 Bottles) |
83 W |
0 W |
|
Deep Freezer |
500 W |
1,500 W |
|
Electric Can Opener |
170 W |
0 W |
|
Dishwasher |
1,500 W |
1,500 W |
|
Food Processor/Blender |
400 W |
0 W |
|
Electric Kettle |
1,200 W |
3,000 W |
|
Food Dehydrator |
800 W |
0 W |
|
Fryer |
1,000 W |
0 W |
|
Pressure Cooker |
700 W |
0 W |
|
Rice Cooker |
200 W |
500 W |
|
Slow Cooker |
160 W |
20 W |
|
Steriliser |
650 W |
0 W |
|
Water Dispenser |
100 W |
0 W |
|
Sandwich Maker |
700 W |
300 W |
|
Percolator |
800 W |
300 W |
|
Electric Oven |
2,150 W |
0 W |
|
Espresso Coffee Machine |
1,300 W |
200 W |
|
Induction Hob (Per Hob) |
1,400 W |
400 W |
|
Cooker Hood |
20 W |
10 W |
|
Air Fryer |
1,500 W |
0 W |
|
Water Filter & Cooler |
70 W |
30 W |
|
Hot Water Dispenser |
1,200 W |
100 W |
|
Side-by-Side Fridge |
800 W |
1,200 W |
|
Modern Fridge (2001-2020) |
|