Smart Home Water Heater Guide

action.devices.types.WATERHEATER - Water heaters are devices used to heat water. They may turn on and off and adjust water temperature.

This type indicates that the device gets the Water Heater icon and some related synonyms and aliases.

Device capabilities

Refer to the corresponding trait documentation for implementation details, such as attributes and states that your service should support, and how to build EXECUTE and QUERY responses.

Required traits

These traits and commands are required, if applicable to your device. If your device does not support these traits, enter the error code of functionNotSupported in a QUERY or EXECUTE response. See Errors and exceptions for more info.

These traits are recommended, if applicable to your device. However, you are free to mix and match from all available traits to best match your existing product functionality.

Quality requirements

  • Latency: must be less than or equal to 800ms.
  • Reliability: must be more than or equal to 97%.

Example device: Simple water heater

This section contains example intent payloads representing a common "Water Heater" based on the device type and traits above. If you add or remove traits in your implementation, modify your responses accordingly to reflect those changes.

Sample SYNC response

Request
{
  "requestId": "6894439706274654512",
  "inputs": [
    {
      "intent": "action.devices.SYNC"
    }
  ]
}
Response
{
  "requestId": "6894439706274654512",
  "payload": {
    "agentUserId": "user123",
    "devices": [
      {
        "id": "123",
        "type": "action.devices.types.WATERHEATER",
        "traits": [
          "action.devices.traits.TemperatureControl",
          "action.devices.traits.OnOff"
        ],
        "name": {
          "name": "Simple water heater"
        },
        "willReportState": true,
        "attributes": {
          "temperatureRange": {
            "minThresholdCelsius": 25,
            "maxThresholdCelsius": 100
          },
          "temperatureUnitForUX": "F"
        },
        "deviceInfo": {
          "manufacturer": "smart-home-inc",
          "model": "hs1234",
          "hwVersion": "3.2",
          "swVersion": "11.4"
        }
      }
    ]
  }
}

Sample QUERY response

Request
{
  "requestId": "6894439706274654514",
  "inputs": [
    {
      "intent": "action.devices.QUERY",
      "payload": {
        "devices": [
          {
            "id": "123"
          }
        ]
      }
    }
  ]
}
Response
{
  "requestId": "6894439706274654514",
  "payload": {
    "devices": {
      "123": {
        "status": "SUCCESS",
        "online": true,
        "on": false,
        "temperatureSetpointCelsius": 30
      }
    }
  }
}

Sample EXECUTE commands

SetTemperature

For additional details on the command parameters, see the action.devices.traits.TemperatureControl reference.

Request
{
  "requestId": "6894439706274654516",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.SetTemperature",
                "params": {
                  "temperature": 45
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
Response
{
  "requestId": "6894439706274654516",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "SUCCESS",
        "states": {
          "online": true,
          "temperatureSetpointCelsius": 45
        }
      }
    ]
  }
}

OnOff

For additional details on the command parameters, see the action.devices.traits.OnOff reference.

Request
{
  "requestId": "6894439706274654518",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.OnOff",
                "params": {
                  "on": true
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
Response
{
  "requestId": "6894439706274654518",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "SUCCESS",
        "states": {
          "online": true,
          "on": true
        }
      }
    ]
  }
}

Device ERRORS

See the full list of errors and exceptions.