i3me
Well-known member
It's more safe that power hungry appliances use a higher voltage because it reduces the necessary amperage. If you need 7 kW of power at 220V, about 32 amps are required (220*32).
At 110V, 64 amps are required to give the same power output, meaning that heavier gauge wiring is required to handle the resistance (heat buildup!) in that wiring. That is expensive!
At 110V, 64 amps are required to give the same power output, meaning that heavier gauge wiring is required to handle the resistance (heat buildup!) in that wiring. That is expensive!