How big of a generator do you need to run a home ac unit?

The size of the generator needed to run a home AC unit typically depends on the unit's wattage requirements. Most central AC units range from 2,000 to 5,000 watts, while window units can be lower, around 500 to 2,000 watts. It's advisable to choose a generator that can handle at least 20-30% more than the starting wattage of the AC unit to accommodate the initial surge when the unit starts. Always check the manufacturer's specifications for precise wattage needs.