Estimating Your Wattage Needs
To select the right generator set for your RV, determine what equipment you will run individually and simultaneously. Check the wattage requirements on each item (volts x amps = watts). Total the wattages of all equipment to be run simultaneously. Bear in mind that electric motor starting may require up to three times the running power.
Once you determine your wattage needs visit our Generator Selector and tell us a few additional facts about your power needs and we'll show you the Cummins Onan RV generators that are best suited for the job.
The wattages listed below are based on estimated wattage requirements. For exact wattages, check the data plate or operator's manual of the item you wish to power.
| Appliance | Average |
| Air Conditioner | 1400 - 2400 |
| Battery Charger | Up to 3000 |
| Blender | 600 |
| Broiler | 1350 |
| Coffee Maker | 550 - 1000 |
| CD Player & Speaker | 50 - 100 |
| Computer | 50 - 100 |
| Converter | 500 - 1000 |
| Curling Iron | 20 - 50 |
| Dishwasher | 1400 |
| Electric Blanket | 50 - 200 |
| Electric Broom/Vacuum | 200 - 500 |
| Electric Drill | 250 - 750 |
| Fan | 25 - 100 |
| Electric Frying Pan/Wok | 1000 - 1350 |
| Stove (Per Element) | 350 - 1000 |
| Electric Water Heater | 1000 - 1500 |
| Electric Water Pump | 500 - 600 |
| Hair Dryer | 350 - 1500 |
| Iron | 500 - 1200 |
| Microwave | 700 - 1500 |
| Radio | 50 - 200 |
| Refrigerator | 400 - 1000 |
| Sewing Machine | 125 |
| Space Heater | 100 - 1500 |
| Television | 200 - 600 |
| Toaster | 750 - 1200 |
| Washer/Dryer | 2000 - 2250 |
| VCR | 150 - 200 |
Additional Power Considerations
Some appliances need a "surge" of energy when starting. This means that the amount of electrical power needed to start the appliance may exceed the amount needed to maintain its use. Electrical appliances normally come with a label indicating voltage, cycles/Hz, amperage (amps) and electrical power needed to run the appliance or tool. Check with your nearest dealer or service center with questions regarding power surge of certain appliances or power tools.
Help Determining Your Commercial Power Requirements
For assistance in estimating your power needs and determining the right generator for your RV contract a Cummins Onan Dealer. Our sales and service locator will direct you to your nearest qualified Cummins Onan dealer or distributorship.
