Always start by completely shutting off power to the water heater at your electrical panel to prevent electrocution. Next, shut off the cold water supply valve to the water heater to prevent it from refilling. Be prepared for residual hot water when draining the tank, and wear appropriate protective gear like gloves and eye protection.

While an adjustable wrench might work for some elements, a specialized heating element wrench (like the Rheem PROTECH Dual Head Element Wrench) is highly recommended. It provides a better grip, reduces the risk of stripping the element's hex head, and ensures you can apply sufficient torque for proper sealing without damaging the tank or element.

This project is rated 'beginner' and typically takes 1-3 hours, not including the full water heater drain and refill time. Most of the time is spent on draining and refilling the tank, while the actual element replacement steps are straightforward if you follow the instructions carefully and have the right tools.

If you observe a leak, immediately turn off the water supply to the heater and shut off its power at the breaker. The leak is likely due to an improperly seated gasket or insufficient tightening. Drain some water (below the element level), then carefully tighten the element further, or if needed, remove it, inspect the gasket, apply fresh pipe thread sealant, and reinstall before refilling and rechecking.