THis is why you run 220v. Double the voltage, half the amperage, half the heat from resistance and more efficient.
You are wrong. The amperage is split in half because there are 2 hot conductors in 240v wiring instead of there only being one in a 120v feed. You are still using the same amount of power. Watts is Watts. You cant defy ohms law. A 120v circuit drawing 20 amps is 2400w and a 240v circuit drawing 10 amps is still 2400w.
Power = E x I (Voltage x current).
So you are using the same amount of power no matter which route (120v or 240v) you take. Indeed the amps is halved ON THE POWER CONDUCTORS of a 240v wire feed but that wont help since most houses have 120v feeds so a 240v would have to be installed new and obviously could be sized CORRECTLY to avoid any overheating for constant duty.
Go back to school noob.
Double the voltage(P), 1/2 the amperage(I) across the same resistance(R). That IS ohms law.
Wattage is just a measure of power. Power/wattage does not create heat, resistance does. Half the amperage across a resistance is half the heat. Half the heat = no melted power meter.
The fact he's overloading the circuit is another issue entirely.