home-assistant.io/source/_integrations/water_heater.markdown

title	description	ha_release	ha_domain	ha_quality_scale	ha_category	ha_codeowners	ha_integration_type
Water heater	Instructions on how to setup water heater devices within Home Assistant.	0.81	water_heater	internal		@home-assistant/core	entity

The Water heater {% term integration %} is built for the controlling and monitoring of hot water heaters.

To enable this {% term integration %}, pick one of the platforms, and add it to your {% term "configuration.yaml" %}:

# Example configuration.yaml entry
water_heater:
  platform: demo

The state of a water heater entity

A water heater entity can have the following states:

• Eco: Energy efficient mode, provides energy savings and fast heating.
• Electric: Electric only mode. This mode uses the most energy.
• Performance: High performance mode.
• High demand: Meet high demands when the water heater is undersized.
• Heat pump: Heat pump is the slowest to heat, but it uses less energy.
• Gas: Gas only mode. This mode uses the most energy.
• Off: The water heater is off.
• Unavailable: The entity is currently unavailable.
• Unknown: The state is not yet known.

Actions

Water heater control actions

Available actions: water_heater.set_temperature, water_heater.turn_away_mode_on, water_heater.turn_away_mode_off, water_heater.set_operation_mode, water_heater.turn_on, water_heater.turn_off

{% tip %} Not all water heater actions may be available for your platform. Be sure to check the available actions Home Assistant has enabled by checking Developer Tools > Actions. {% endtip %}

Action water_heater.set_temperature

Sets target temperature of water heater device.

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 {% term integration %} documentation.

Automation example

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

Action water_heater.set_operation_mode

Set operation mode for water heater device

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:
  triggers:
    - trigger: time
      at: "07:15:00"
  actions:
    - action: water_heater.set_operation_mode
      target:
        entity_id: water_heater.demo
      data:
        operation_mode: eco

Action water_heater.set_away_mode

Turn away mode on or off for water heater device

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:
  triggers:
    - trigger: time
      at: "07:15:00"
  actions:
    - action: water_heater.set_away_mode
      target:
        entity_id: water_heater.demo
      data:
        away_mode: true

Action water_heater.turn_on

Turn water heater device on.

Data attribute	Optional	Description
entity_id	yes	String or list of strings that define the entity ID(s) of water heater device(s) to control. To target all water heater devices, use all.

Action water_heater.turn_off

Turn water heater device off.

Data attribute	Optional	Description
entity_id	yes	String or list of strings that define the entity ID(s) of water heater device(s) to control. To target all water heater devices, use all.