Off-Grid Living Service
Load Calculator for Off-Grid & Backup Power Systems; Please enter info for each load or appliance that needs to be calculated, and we will get back to you shortly with your calculation. If needed, use the table below to find the typical wattages of common household appliances.
Appliance: Wattage
Coffee Maker: 900-1200
Clothes Washer: 350-500
Clothes Dryer: 1800-5000
Dishwasher: 1200-2400
(using the drying feature greatly increases energy consumption)
Dehumidifier: 785
Electric Blanket: Single: 60
Double: 100
Ceiling Fan: 65-175
Window Fan: 55-250
Furnace Fan: 750
Whole House Fan: 240-750
Hair Dryer: 1200-1875
Heater (Portable): 750-1500
Clothes Iron: 1000-1800
Microwave Oven: 750-1100
Personal Computer - CPU: Awake: 150
Asleep: 30 or less
Personal Computer -Monitor: Awake: 150
Asleep: 30 or less
Personal Computer - Laptop: 50
Radio (stereo): 70-400
Refrigerator (frost-free, 16 cubic feet): 725
Television (color) - 19": 65-110
Television (color) - 27": 113
Television (color) - 36": 133
Television (color) - 53"-61" Projection: 170
Television (color) - Flat Screen: 120
Toaster: 800-1400
Toaster Oven: 1225
VCR/DVD: 17-21/20-25
Vacuum Cleaner: 1000-1440
Water Heater (40 gallon): 4500-5500
Water Pump (deep well): 250-1100
Water Bed (with heater, no cover): 120-30