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Generator Sizing Chart
Complete Guide to generators and backup power generator sizing
Emergency Requirements for Basic Homes:
| Appliance |
Run Wattage |
Start Wattage |
| Refrigerator |
700 |
2800 |
| Freezer Chest |
500 |
2500 |
| Lights (10 at 75 Watts each) |
750 |
750 |
| Microwave Oven |
1500 |
1500 |
| Television |
800 |
800 |
| Gas Furnace Fan 1/2 Hp |
500 |
1250 |
| Total Basic Watts (kW = 1,000 Watts) |
4750 |
9600 |
Other Additions
| Coffee Maker |
1100 |
1100 |
| Dishwasher |
1500 |
3750 |
| Air Conditioner |
| 12000 BTU |
2800 |
7000 |
| 24000 BTU |
4200 |
10500 |
| 32000 BTU |
5000 |
12500 |
| Small Drill Motor |
500 |
500 |
| Large Frying Pan |
500 |
500 |
| Small Frying Pan |
150 |
150 |
| Laundry Dryer - Gas |
500 |
1000 |
| Laundry Dryer - Electric |
5500 |
6000 |
| Hair Dryer |
1500 |
1500 |
| Heat Pump or Electric Heat |
10000 |
10000 |
| Light Bulb |
| 40 Watt |
40 |
40 |
| 60 Watt |
60 |
60 |
| 100 Watt |
100 |
100 |
| 150 Watt |
150 |
150 |
| Motors |
| 1/2 Hp |
500 |
1250 |
| 1Hp |
1000 |
2500 |
| 2Hp |
2000 |
5000 |
| Electric Oven |
6500 |
6500 |
| Radio |
100 |
100 |
| Space Heater |
1500 |
1500 |
| Stereo |
120 |
120 |
| Electric Stove (Per Element) |
1500 |
1500 |
| Sump Pump - 1/2 Hp |
500 |
1250 |
| Toaster |
200 |
200 |
| Large Television |
800 |
800 |
| Small Television |
100 |
100 |
| Vacuum Cleaner |
250 |
250 |
| VCR |
150 |
150 |
| Water Heater - Electric |
4500 |
4500 |
| Well Pump |
| 1Hp |
1000 |
2500 |
| 2Hp |
2000 |
5000 |
| 3Hp |
3000 |
7500 |
| Window Fan |
250 |
250 |
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