Home Assistant

Water heater

The Water heater integrationIntegrations connect and integrate Home Assistant with your devices, services, and more. [Learn more] is built for the controlling and monitoring of hot water heaters.

To enable this integrationIntegrations connect and integrate Home Assistant with your devices, services, and more. [Learn more], pick one of the platforms, and add it to your configuration.yamlThe configuration.yaml file is the main configuration file for Home Assistant. It lists the integrations to be loaded and their specific configurations. In some cases, the configuration needs to be edited manually directly in the configuration.yaml file. Most integrations can be configured in the UI.[Learn more]:

# 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 Developer Tools -> 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 the entity_id of water heater devices to control. Use entity_id: all to target 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. For a list of possible modes, refer to the integrationIntegrations connect and integrate Home Assistant with your devices, services, and more.
[Learn more] documentation.

Automation example

automation:
  trigger:
    platform: time
    at: "07:15:00"
  action:
    - service: water_heater.set_temperature
      target:
        entity_id: water_heater.demo
      data:
        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 the entity_id of water heater devices to control. Use entity_id: all to target all.
operation_mode no New value of operation mode. For a list of possible modes, refer to the integration documentation.

Automation example

automation:
  trigger:
    platform: time
    at: "07:15:00"
  action:
    - service: water_heater.set_operation_mode
      target:
        entity_id: water_heater.demo
      data:
        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 the entity_id of water heater devices to control. Use entity_id: all to target 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
      target:
        entity_id: water_heater.demo
      data:
        away_mode: true