I am to install a point of use, 13 gallon Whirlpool electric hot water heater. The hot water heater claims to use up to 1750W, using a 1600W, 120V element. Is there any consiquence to replacting 120V element with a 240V element. From my understanding, it seems these are just resistive elements, and power/current should behave accurding to ohm law (V=IR, P=VI=V^2*R). Of course warm-up times will be doubled (or perhaps even x4).
Thanks for any insight.