Current temperature as template sensor

Many of you asking to dispose the current temperature as a sensor. It is easy to add with a template.

1. Select Settings -> Device & Services -> Helpers
2. Click on the Create Helper button.
3. Select Template.
4. Select Template a sensor.
5. Add your sensor name.
6. Enter the template: {{ state_attr('water_heater.yourwaterheaterdevicename', 'current_temperature') }} Make sure your water heater device name is correct.