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

on a 250-gallon propane tank for stationary models. The Kohler 14RESAL is part of the Generators test program at Consumer Reports. In our lab tests, Home Standby Generators models like the 14RESAL ...

Our average of how long a generator ran, over various loads, on a full tank of gasoline or diesel fuel, a 20-pound tank for propane-based portables, or a 250-gallon propane tank for stationary models.

The type of fuel used by the home generator—propane, natural gas ... It's stored in large tanks near the home rather than relying on exterior gas lines, allowing you to run the generator ...