Here's a step-by-step guide on how to install an electric water heater:

1. Power off the electricity and remove the old electric heater.
2. Disconnect the electric wire.
3. Disengage the supply pipes.
4. Reconnect the electrical wires.
5. Install the supply lines.
6. Attach the pressure discharge pipe and temperature.
7. Switch on the circuit breaker.

You can find more detailed instructions with pictures and videos on websites like [Sunrise Specialty](https://www.sunrisespecialty.com/electric-water-heater-installation), [HomeServe](https://www.homeserve.com/en-us/blog/how-to/install-tankless-electric-water-heater/), [House to Home Organizing](https://www.h2horganizing.com/blog/2023/5/17/electric-water-heater-installation-step-by-step-guide), [1-Tom-Plumber](https://www.1tomplumber.com/how-to-install-electric-water-heater/) and [Lowe's](https://www.lowes.com/n/how-to/install-an-electric-water-heater) .