Purchase a generator large enough for the single largest need. When the primary requirement for a generator is completed, then it can be used for other appliances and electronics. Smaller appliances and electronics can be mixed and matched to fit within the maximum surge wattage of your generator.
Purchase the smallest generator possible to fill your need so that fuel consumption is minimized. Typical generator engine horsepower is:
2,000 watt generator 5 hp
3,000 watt generator 7 hp
6,000 watt generator 12 hp
The higher the horsepower, the more fuel needed to run for the same amount of time so the larger the generator, the greater the amount of fuel needed to be stored. Remember that gasoline breaks down over time and must be rotated. Shelf life is 3 to 12 months depending on additives and stabilizers.
Never store your generator with fuel in it. For best generator operation, run it once a month for about 30 minutes and until the gasoline is depleted.
For more information, see this site and buying guides at Lowe’s.
For wattage worksheets to determine the size generator to purchase, see Home Depot and Lowe’s.
Portable Generator Safety
- Regularly inspect the generator for damaged or loose fuel lines.
- Keep the generator dry.
- Maintain and operate the generator according to the manufacturer’s instructions. Review them each time the generator is operated.
- NEVER attach a portable generator directly to the electrical system of a structure unless the generator has a properly installed transfer switch. Otherwise, there is a great risk of electrocution for utility workers.
- Plug appliances directly into the generator using undamaged heavy-duty grounded extension cords.
- Shut off the generator before refueling.
- NEVER use a gasoline-powered generator indoors.
- NEVER place a gasoline-powered generator outdoors near doors, windows, or vents
For more information, visit the OSHA site.