Set hot water schedule
Use this action to set the hot water heating schedule for your BSB-LAN device. Each day of the week can have one or more time slots during which hot water heating is active. You only need to set the days you want to change.
This is handy in automations, for example to switch between a winter and a summer heating schedule based on the season.
Using this action from the user interface
If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.
To set the hot water schedule from an automation or a script:
- Go to Settings > Automations & scenes.
- Open an existing automation or script, or select Create automation > Create new automation.
- If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger. They run when something else calls them.
- In the Then do section, select Add action.
- From the search box, search for and select BSB-LAN: Set hot water schedule.
- Select the Device to configure.
- For each day you want to change, add one or more time slots with a start and end time.
- Select Save.
Options in the UI
The time periods for Monday. Add multiple slots for different heating periods throughout the day.
Using this action in YAML
If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required.
In YAML, refer to this action as bsblan.set_hot_water_schedule. Each day’s slots are a list of time periods, where each period has a start_time and an end_time. A basic example looks like this:
action: bsblan.set_hot_water_schedule
data:
device_id: a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4
monday_slots:
- start_time: "06:00:00"
end_time: "08:00:00"
- start_time: "17:00:00"
end_time: "21:00:00"
This sets two heating periods for Monday and leaves the other days unchanged.
Options in YAML
The time periods for Monday. Each period has a start_time and an end_time. Add multiple periods for different heating periods throughout the day.
Good to know
- You only need to set the days you want to change. Days you leave out keep their current schedule.
Try it yourself
Ready to test this? Open Developer tools > Actions, search for this action, fill in the fields, and select Perform action. You see what happens on your actual entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] without writing a line of YAML.
More examples
Real scenarios where this action shows up in automations and scripts. Copy any example and adapt it to your setup.
You don’t need to edit YAML to use these examples. Copy a YAML snippet from this page, open the automation editor in Home Assistant, and press Ctrl+V (or Cmd+V on Mac). Home Assistant automatically converts the pasted YAML into the visual editor format, whether it’s a full automation, a single trigger, a condition, or an action.
Set a weekday and weekend schedule
This example sets one schedule for the weekdays and a different one for the weekend.
YAML example for a weekday and weekend schedule
action: bsblan.set_hot_water_schedule
data:
device_id: a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4
monday_slots:
- start_time: "06:00:00"
end_time: "08:00:00"
- start_time: "17:00:00"
end_time: "21:00:00"
tuesday_slots:
- start_time: "06:00:00"
end_time: "08:00:00"
- start_time: "17:00:00"
end_time: "21:00:00"
wednesday_slots:
- start_time: "06:00:00"
end_time: "08:00:00"
- start_time: "17:00:00"
end_time: "21:00:00"
thursday_slots:
- start_time: "06:00:00"
end_time: "08:00:00"
- start_time: "17:00:00"
end_time: "21:00:00"
friday_slots:
- start_time: "06:00:00"
end_time: "08:00:00"
- start_time: "17:00:00"
end_time: "21:00:00"
saturday_slots:
- start_time: "08:00:00"
end_time: "22:00:00"
sunday_slots:
- start_time: "08:00:00"
end_time: "22:00:00"
Still stuck?
The Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.
AI assistants like ChatGPT or Claude can also explain actions or suggest the right one when you describe what you want in plain language.
Related actions
These actions work well alongside this one:
- Sync time: Synchronizes the Home Assistant time to a BSB-LAN device.