Calculating Total Wattage of Devices Used with the Generator

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

5,500 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 6,500 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 5,500)

Largest Additional Start-up Watts

Total Startup Watts needed for all loads (must be less than 6,500)

Example

Equipment

Running

Watts

 

Electric Water Heater (2,000 + 0)

2,000

Television (400 + 0)

400

Lawn Mower (1,200 + 1,200)

1,200

Hand Drill (600 + 600)

600

 

 

 

 

 

 

Total Running Watts

4,200

(must be less than 5,500)

 

Largest Additional Start-up Watts

1,200

Total Startup Watts needed for all loads

5,400

(must be less than 6,500)

 

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

 

 

 

 

 

Running

Additional

Device

Start-up

Watts

 

Watts

 

 

Refrigerator/Freezer

700

1500

Radio

100

0

 

 

 

JOB SITE

 

 

 

 

 

Running

Additional

Device

Start-up

Watts

 

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

 

 

 

 

 

Running

Additional

Device

Start-up

Watts

 

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

 

 

 

 

 

Running

Additional

Device

Start-up

Watts

 

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

 

 

 

 

 

Running

Additional

Device

Start-up

Watts

 

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

Safety

Setup

Operation

Maintenance

Item 68526 / 68529

For Pump technical questions, please call 1-800-444-3353.

Page 13

For Engine technical questions, please call 1-800-520-0882.

Page 13
Image 13
Harbor Freight Tools 68526 owner manual Equipment, Example, To Calculate Wattage

68526 specifications

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