Should I use a household extension cord with my generator?

No, you should use a generator extension cord instead. Household cords aren’t built for the current, weather, or distance—they heat up under generator loads, cause voltage drops, and risk meltdowns. Generator cords have thicker 10 or 12 AWG wire, outdoor-rated insulation, and locking connectors. A 50-foot 10/3 cord costs around $60–$100, which is cheap insurance against a fire or damaged equipment.