There are a few different things to consider when it comes to the continuity of a water heater element. First, you'll want to make sure that the element is properly sized for the tank. Next, you'll need to check the voltage and amperage rating of the element to be sure it is compatible with your system. Finally, you'll want to test the element for continuity before installation.
If you're unsure about any of these steps, it's always best to consult with a professional. Improperly installed or incompatible elements can cause serious damage to your water heater and pose a serious safety risk.