Wattage Estimation Guide
Home
Tip: Don't just add up the total wattage for everything you want to power. See our section on power management to learn how to use a smaller generator to power more.
More help on determining your power needs
Home Applications
|
|
Approximate Starting Wattage |
Approximate Running Wattage |
240V required? |
|---|---|---|---|
|
Refrigerator or Freezer (Energy Star) |
1200 |
132-192 |
|
|
Microwave Oven |
|||
|
650 watts |
1000 |
1000 |
|
|
800 watts |
1300 |
1300 |
|
|
1000 watts |
1500 |
1500 |
|
|
Incandescent Lights |
as indicated on bulb (i.e. 60W) |
as indicated on bulb (i.e 60W) |
|
|
Furnace Fan, gas or fuel oil |
|
||
|
1/8 Horsepower |
500 |
300 |
Y |
|
1/6 Horsepower |
750 |
500 |
Y |
|
1/4 Horsepower |
1000 |
600 |
Y |
|
1/3 Horsepower |
1400 |
700 |
Y |
|
1/2 Horsepower |
2350 |
875 |
Y |
|
Television |
|
|
|
|
Tube type |
300 |
300 |
|
|
Flat Screen (20”) |
120 |
120 |
|
|
Flat Screen (46") |
190 |
190 |
|
|
Coffee Maker (4 cup) |
600 |
600 |
|
|
Dishwasher (Cool Dry) |
540 |
216 |
|
|
Electric Fry Pan |
1500 |
1500 |
|
|
Electric Range (8-inch element) |
2100 |
2100 |
Y |
|
Automatic Washer |
1200 |
1200 |
|
|
Clothes Dryer (Electric) |
6750 |
5400 |
Y |
|
Radio |
50 to 200 |
50 to 200 |
|
|
Sump Pump |
|
||
|
1/3 Horsepower |
1300 |
800 |
Y |
|
1/2 Horsepower |
2150 |
1050 |
Y |
|
Window Air Conditioner (10,000 BTU) |
2200 |
1500 |
|
|
Computer |
|||
|
Laptop |
200-250 |
200-250 |
|
|
Desktop |
600-800 |
600-800 |
|
|
Monitor (LCD style) |
30 |
30 |
|
|
Printer |
400-600 |
400-600 |
|
|
Hot Water Heater |
4500 |
4500 |
Y |
|
Garage Door Opener |
1420 |
720 |
|
Recreational
Tip: Don't just add up the total wattage for everything you want to power. See our section on power management to learn how to use a smaller generator to power more.
More help on determining your power needs
Recreational Applications
|
|
Approximate Starting Wattage |
Approximate Running Wattage |
240V required? |
|---|---|---|---|
|
Television |
|
|
|
|
Tube type |
300 |
300 |
|
|
Flat Screen |
120 |
120 |
|
|
RV Air Conditioner |
|
|
|
|
11000 BTU |
1600 |
1010 |
|
|
13500 BTU |
2800 |
1800 |
|
|
15000 BTU |
3300 |
2000 |
|
|
RV Refrigerator |
600 |
180 |
|
|
Blender |
850 |
400 |
|
|
Electric Grill (tabletop) |
1650 |
1650 |
|
|
Slow Cooker |
170-270 |
170-270 |
|
|
Hair Dryer (1600 watts) |
1900 |
1800 |
|
|
Microwave Oven (650 watts) |
1000 |
1000 |
|
|
Coffee Maker |
600 |
600 |
|
|
Radiant Heater |
1300 |
1300 |
|
|
Laptop computer |
200-250 |
200-250 |
|
|
Satelite Receiver |
250 |
250 |
|
|
Radio |
50 to 200 |
50 to 200 |
|
|
Two-Way Radio |
|
|
|
|
12A |
360W |
360W |
|
|
23A |
840W |
840W |
|
|
35A |
960W |
960W |
|
|
Fan (portable) |
120 |
40 |
|
|
DVD Player |
350 |
350 |
|
Construction/Industrial
See the chart below to estimate your power needs.
Tip: Don't just add up the total wattage for everything you want to power. See our section on power management to learn how to use a smaller generator to power more.
More help on determining your power needs
Contractor Applications
|
|
Approximate Starting Wattage |
Approximate Running Wattage |
|---|---|---|
|
Air Compressor |
||
|
1/2 hp |
1600 |
975 |
|
1 hp |
4500 |
1600 |
|
Bench Grinder (8 in.) |
2500 |
1400 |
|
Circular Saw (Heavy Duty, 7 1/4 in.) |
2300 |
1400 |
|
Concrete Vibrator |
||
|
1/2 hp |
840 (avg) |
840 (avg) |
|
1 hp |
1080 (avg) |
1080 (avg) |
|
2 hp |
1560 (avg) |
1560 (avg) |
|
3 hp |
2400 (avg) |
2400 (avg) |
|
Demolition hammer |
1260 (avg.) |
1260 (avg.) |
|
Drain cleaner |
250 (avg.) |
250 (avg.) |
|
Drills |
||
|
3/8 inch, 4 amps |
600 |
440 |
|
1/2 inch, 5.4 amps |
900 |
600 |
|
Electric Chain Saw (14 inches, 2 hp) |
1100 |
1100 |
|
Hand Drill (1/2 in.) |
900 |
600 |
|
High-pressure Washer (1 hp) |
3600 |
1200 |
|
Rotary hammer |
1200 (avg.) |
1200 (avg.) |
|
Table Saw (10 in.) |
4500 |
1800 |
|
|
|
|
|
Industrial Motors |
|
|
|
Split Phase |
||
|
1/8 Horsepower |
1200 |
275 |
|
1/4 Horsepower |
1700 |
400 |
|
1/3 Horsepower |
1950 |
450 |
|
1/2 Horsepower |
2600 |
600 |
|
Capacitor Start Induction Run |
||
|
1/8 Horsepower |
850 |
275 |
|
¼ Horsepower |
1050 |
400 |
|
1/3 Horsepower |
1350 |
450 |
|
½ Horsepower |
1800 |
600 |
|
¾ Horsepower |
2600 |
850 |
|
1 Horsepower |
3000 |
1000 |
|
1 ½ Horsepower |
4200 |
1600 |
|
2 Horsepower |
5100 |
2000 |
|
3 Horsepower |
6800 |
3000 |
|
4 Horsepower |
9800 |
4800 |
|
Capacitor Start Capacitor Run |
||
|
1/8 Horsepower |
600 |
275 |
|
¼ Horsepower |
850 |
400 |
|
1/3 Horsepower |
975 |
450 |
|
½ Horsepower |
1300 |
600 |
|
¾ Horsepower |
1900 |
850 |
|
1 Horsepower |
2300 |
1000 |
|
1-½ Horsepower |
3200 |
1600 |
|
2 Horsepower |
3900 |
2000 |
|
3 Horsepower |
5200 |
3000 |
|
4 Horsepower |
7500 |
4800 |
|
Fan Duty |
||
|
1/4 Horsepower |
1200 |
650 |
Farm Equipment
See the chart below to estimate your power needs.
Tip: Don't just add up the total wattage for everything you want to power. See our section on power management to learn how to use a smaller generator to power more.
More help on determining your power needs
|
|
Approximate Starting Wattage |
Approximate Running Wattage |
|---|---|---|
|
Electric Fence, 25 miles |
250 |
250 |
|
Milk Cooler |
1800 |
1100 |
|
Milker (vacuum pump, 2hp) |
2300 |
1000 |
|
Portable Heater (kerosene, diesel fuel) |
||
|
50,000 BTU |
600 |
400 |
|
90,000 BTU |
725 |
500 |
|
150,000 BTU |
1000 |
625 |
|
Battery Charger |
||
|
15 amp |
380 |
380 |
|
60 amp with 250-amp boost |
1500/5750 |
1500/5750 |
