Harbor Freight Tools 69728 Calculating Total Wattage of Devices Used with the Generator

Calculating Total Wattage of Devices Used with the Generator

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Before using the Generator, check that the products you want to plug into the unit are below the rated and maximum wattage ratings of the Generator. Use the Wattage Calculation Table below, and the watts listed on your products, to help calculate multiple wattage totals.

To use the table:

1.Add up the Running Watts for all items you would like to use at any given time

2.Make sure that this total is under the

3200 rated wattage of the generator.

3.Find the single highest starting watts for the selected items and add to the total.

4.Make sure that this total is under the 4000 maximum rated wattage of the generator.

5.Plug in and turn on products from largest wattage to smallest.

Wattage Calculation Table

Equipment	Running
	Watts

Total Running Watts (must be less than 3,200)

Largest Additional Start-up Watts

Total Startup Watts needed for all loads (must be less than 4,000)

Example

Equipment	Running
	Watts
Microwave (1,000 +200)	1,000
Television (400 + 0)	400
Box Fan (200 + 200)	200
Hand Drill (600 + 600)	600
Total Running Watts	2,200
(must be less than 3,200)
Largest Additional Start-up Watts	600
Total Startup Watts needed for all loads	2,800
(must be less than 4,000)

A generator that is rated more than the minimum required peak watts will last much longer than a generator that only supplies the exact watts needed.

To Calculate Wattage

Volts and amps can be multiplied together to get watts (volts x

amps = watts).

To Calculate Additional Start-Up Watts

(If They Are Not Listed)

For equipment with a motor: Use the rated watts amount as an estimate of additional Start-up Watts.

For most lights or heaters:

there are no additional start-up watts.

Wattage Estimate Charts

Note: Wattages listed below are estimates for that type of equipment only. Check nameplate wattages on all loads before connecting to Generator.

EMERGENCY
Device	Running	Additional
	Watts	Start-up
		Watts
Refrigerator/Freezer	700	1500
Radio	100	0
JOB SITE
Device	Running	Additional
	Watts	Start-up
		Watts
Air Compressor - 1/2 HP	1000	1000
Table Saw - 10"	1700	1300
Belt Sander - 3"	1200	1200
Hand Drill - 1/2"	600	600
Halogen Work Light	1000	0
Recipricating Saw	900	900
RECREATION
Device	Running	Additional
	Watts	Start-up
		Watts
AM/FM Radio	100	0
Electric Grill	1700	0
Inflator Pump	50	100
CD/DVD Player	100	0
Box Fan - 20"	200	200
Coffee Maker	600	0
HOUSEHOLD
Device	Running	Additional
	Watts	Start-up
		Watts
Computer w/ Monitor	800	0
Electric Clothes Dryer	5500	500
Electric Range	2100	0
Electric Water Heater	2000	0
Light Bulb - 100 watts	100	0
Microwave - 1000 watts	1000	200
Sump Pump - 1/2 HP	1000	1100
Television	400	0
Washing Machine	1100	1100
Well Pump - 1/2 HP	1000	1000
LAWN & GARDEN
Device	Running	Additional
	Watts	Start-up
		Watts
Hedge Trimmer	400	400
Pressure Washer	1200	1200
Lawn Mower	1200	1200
Edger	1000	1000
HEATING & COOLING
	Running	Additional
Device		Start-up
	Watts
		Watts
Central AC - 10,000 BTU	1500	1500
Furnace Fan - 1/2 HP	900	1400
Space Heater	1800	0
Window AC - 10,000 BTU	1200	600

Page 12	For Pump technical questions, please call 1-800-444-3353.	Item 69728 / 69729
	For Engine technical questions, please call 1-800-520-0882.