Your Generac house backup generator operates with your present pure fuel or LP fuel offer. Help you save the gasoline cans to your other outside electricity tools. 20kW to 29kW 30kW to 39kW 40kW to 49kW 50kW to 59kW 60kW to 69kW 70kW to 79kW 80kW to 89kW 90kW to 99kW 100kW to 150kW Professional By Fuel Form Over and above amplified energy out