home-assistant.io/source/_components/water_heater.markdown
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title, description, ha_release
title description ha_release
Water Heater Instructions on how to setup water heater devices within Home Assistant. 0.81

The water_heater integration is built for the controlling and monitoring of hot water heaters.

To enable this component, pick one of the platforms, and add it to your configuration.yaml:

# Example configuration.yaml entry
water_heater:
  platform: demo

Services

Water heater control services

Available services: water_heater.set_temperature, water_heater.turn_away_mode_on, water_heater.turn_away_mode_off, water_heater.set_operation_mode

Not all water heater services may be available for your platform. Be sure to check the available services Home Assistant has enabled by checking service developer tool icon Services.

Service water_heater.set_temperature

Sets target temperature of water heater device.

Service data attribute Optional Description
entity_id yes String or list of strings that point at entity_id's of water heater devices to control. Else targets all.
temperature no New target temperature for water heater
operation_mode yes Operation mode to set the temperature to. This defaults to current_operation mode if not set, or set incorrectly.

Automation example

automation:
  trigger:
    platform: time
    at: "07:15:00"
  action:
    - service: water_heater.set_temperature
      data:
        entity_id: water_heater.demo
        temperature: 24
        operation_mode: eco

Service water_heater.set_operation_mode

Set operation mode for water heater device

Service data attribute Optional Description
entity_id yes String or list of strings that point at entity_id's of water heater devices to control. Else targets all.
operation_mode no New value of operation mode

Automation example

automation:
  trigger:
    platform: time
    at: "07:15:00"
  action:
    - service: water_heater.set_operation_mode
      data:
        entity_id: water_heater.demo
        operation_mode: eco

Service water_heater.set_away_mode

Turn away mode on or off for water heater device

Service data attribute Optional Description
entity_id yes String or list of strings that point at entity_id's of water heater devices to control. Else targets all.
away_mode no New value of away mode. 'on'/'off' or True/False

Automation example

automation:
  trigger:
    platform: time
    at: "07:15:00"
  action:
    - service: water_heater.set_away_mode
      data:
        entity_id: water_heater.demo
        away_mode: true