ApplianceAverage Wattage*
Room Air Conditioner (6,000 Btu)**750 – 1200
Room Air Conditioner (12,000 Btu)**1,700
Freezer**500
Furnace blower** (1/3 HP)1,200
LampCheck bulb wattage
Microwave700
Radio50 - 200
Refrigerator**600
Space Heater (portable)1,300
Sump Pump250 – 600
Television200 – 500
Window Fan200

*Appliance wattages vary. These figures represent averages only.
**Allow up to three times the normal running watts for starting these appliances or cycling their compressors.

 

How to Calculate Wattage

If you are unable to easily locate the appliance wattage, you can calculate it yourself. Look for labels inside or on the back of the appliance, check operating manuals or contact the manufacturer. Find the AMP and VOLT listings for the appliance.

 

AMPS X VOLTS = the constant wattage of your appliance

 

Remember, motor-driven appliances like refrigerators, freezers, air conditioners and furnace blowers, require up to three times their normal wattage to start or periodically cycle a compressor.

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