Power Calculator for Residential Home Generators

Click in the checkbox next to each item you will need to run from your new generator.

Description:
Appliance/Item
 Wattage
Running(Startup)
Furnace Fan 1/8 HP
300(800)

Furnace:
Furnace Fan 1/8 HP 300(800)
Furnace Fan 500 1/6 HP(750)
Furnace Fan 600 1/4 HP(1600)
Furnace Fan 700 2/5 HP(2100)
Furnace Fan 875 3/5 HP(3250)
A/C
Central A/C 12,000BTU 1700(3900)
Central A/C 24,000BTU 3800(8750)
Central A/C 36,000BTU 5000(11500)
Central A/C 48,000BTU 6500(12900)
Window A/C 10,000BTU 3000(4500)
Appliances
Refrigerator 600(2800)
Dishwasher 700(2100)
Gas Dryer 700(2500)
Electric Dryer 5750(7750)
Microwave 1000(1000)
Washer 750(2300)
 Kitchen
Coffee Maker 850(850)
Toaster 1100(1100)
Electric Skillet 1500(1500)
Elec. Range per 6" Element 1500(1500)
Elec. Range per 8" Element 2100(2100)
Freezer 2500(4700)
Household
Lights 5 - 100Watts Bulb 500(500)
TV 300(300)
AM/FM Radio 100(100)
Garage Door Opener 1/3HP 725(1400)
Garage Door Opener 1/4HP 550(1100)
Water Pump
Well Pump 1/3HP 1000(3100)
Well Pump 1/2HP 1050(3200)
Sump Pump 1/3HP 500(1700)
Sump Pump 1/2HP 1050(3200)
Total Watts:

*These Sizing Guides are intended for estimating purposes only. Actual power requirements of high demand appliances vary widely by brand, model and capacity. Always have an authorized dealer or qualified electrician analyze your specific requirements before making a purchase decision.