watts are watts. The input voltage makes no difference. 240v will draw half the amperage of 120v, but the same 'amount' of power will be used either way.
okay but isnt half amp better or is it easier on equipment,why isnt everything 120v then ???just curious why dryers and ovens are 240v the rest is 120v???
Less current is less heat. 240v is just a better way to deliver more power to a high-draw device without increasing the current to the device. A 10 amp 120v circuit will be notable hotter than a 5 amp 240v circuit.
