And if your power does go out, a portable ... from just under $1,000 to over $2,000. These midsized generators provide 2,500 to 4,900-plus watts of power and weigh about 80 to 180 pounds.

This powerful generator runs on gas or propane, and it's currently just $399 right now during Walmart's winter sale.

Measured at 23 and 50 ... 20-lb. size. Stationary models are fueled externally from a fixed propane or natural-gas tank. How many appliances you can plug directly into the generator (portable ...