add_vacation: description: Add a vacation to your water heater. fields: entity_id: description: Name(s) of entities to change. example: "water_heater.econet" start_date: description: The timestamp of when the vacation should start. (Optional, defaults to now) example: 1513186320 end_date: description: The timestamp of when the vacation should end. example: 1513445520 delete_vacation: description: Delete your existing vacation from your water heater. fields: entity_id: description: Name(s) of entities to change. example: "water_heater.econet"