BWT Perla for Home Assistant (Marketplace integration)

Installs: 193 sharing analytics
GitHub stars: 51
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: v1.0.0, October 25, 2026
Category: Water, Water treatment
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: bwt_perla
Source: github.com/dkarv/ha-bwt-perla
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

About

BWT Perla is a custom integration that reads BWT Perla water softener devices over the local network. It adds sensors for remaining capacity, regeneration counters for both columns, current flow, daily output, incoming and outgoing water hardness, active errors and the last or scheduled regeneration time. Volumes are calculated as blended water, so the remaining capacity matches the amount that can be used before regeneration starts. The salt level is reported in exact percentages instead of the 10% steps shown on the device. Error and warning sensors show readable messages, and the raw codes are available as attributes for automations. Setup runs in the UI and asks for the host or IP address, plus a login code for Perla One and Duplex models.

Automatic summary of the README and code of dkarv/ha-bwt-perla. Something wrong, or are you the maintainer and want your own text here? Get in touch

Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Sensors

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Connect

User-Code
Host

Texts from the code of dkarv/ha-bwt-perla.

Entities

SensorsRemaining capacity of column 1, Regeneration counter column 1, Regeneration counter column 2, Current flow, Last service by customer, Output of current day, Active errors, Incoming water hardness, Outgoing water hardness, Future start of holiday mode if available, Last / scheduled regeneration time, Last regeneration column 2, and 35 more