---
title: "BSB-LAN"
description: "BSB-LAN is a built-in integration for Home Assistant. It has 251 installs sharing analytics and works locally."
canonical: "https://vulpo.app/integrations/core/bsblan"
url: "https://vulpo.app/integrations/core/bsblan.md"
last-updated: "2026-10-22"
version: "1.4"
---

# BSB-LAN

> BSB-LAN is a built-in integration for Home Assistant. It has 251 installs sharing analytics and works locally.

BSB-LAN is a built-in integration that connects Home Assistant to a BSB-LAN device over the local network. It provides climate, water heater and sensor entities, including current temperature, outside temperature and total energy, plus a button to sync time. Two actions are available: one sets the hot water heating schedule, and another synchronizes Home Assistant time to the device, updating only when the times differ. Home Assistant can discover the device on the network and offer to add it, and setup is done in the UI with host, port and optional username, password and passkey. Connection settings can be changed later without removing the entry, and a repair notice can appear when the firmware needs updating.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=bsblan)

## Supports

- **Works locally**: Talks to your devices on your own network. No vendor cloud in between.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Found by itself**: Home Assistant spots it on the network and offers to add it.
- **Change settings later**: Its connection settings can change without removing it.
- **Silver quality**: Home Assistant's own rating of its code and setup experience.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

Home Assistant usually finds it on the network and offers to add it. It can also be added by hand under Settings, Devices and services.

### Connect to the BSB-LAN device

- **Host**: The hostname or IP address of your BSB-LAN device.
- **Passkey string**: The passkey for your BSB-LAN device.
- **Password**: The password for your BSB-LAN device.
- **Port**: The port number of your BSB-LAN device.
- **Username**: The username for your BSB-LAN device.

Also asked when changing the connection.

### BSB-LAN device discovered

- **Passkey string**: The passkey for your BSB-LAN device.
- **Password**: The password for your BSB-LAN device.
- **Username**: The username for your BSB-LAN device.

Also asked when signing in again.

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## Entities

- **Buttons**: Sync time
- **Sensors**: Current temperature, Outside temperature, Total energy

## Actions

- **Set hot water schedule**: Set the hot water heating schedule for a BSB-LAN device.
  Fields: Device, Friday time slots, Monday time slots, Saturday time slots, Sunday time slots, Thursday time slots, Tuesday time slots, Wednesday time slots
- **Sync time**: Synchronize Home Assistant time to the BSB-LAN device. Only updates if device time differs from Home Assistant time.
  Fields: Device

## Troubleshooting

- **Diagnostics**: Downloads a diagnostics file to attach to a bug report.
- **Repair notices**: Notices it can show in Settings, Repairs:
  Update your BSB-LAN firmware

## At a glance

- Kind: Built-in integration
- Category: [Computers and network](https://vulpo.app/integrations/category/computers-and-network.md), Routers and network
- Number: 251 installs sharing analytics
- Connection: Works locally
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Quality scale: Silver quality scale
- Domain: `bsblan`
- Source: <https://www.home-assistant.io/integrations/bsblan/>

In Vulpo: Climate card, Button card, Chart card, Apple Watch, Climate Live Activity (Pro)

[Widgets & Live Activities in Vulpo](https://vulpo.app/features/widgets-and-live-activities)

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-22. Source: https://vulpo.app/integrations/core/bsblan

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