For Home Assistant
Monitor and control your IDM Navigator heat pump directly in Home Assistant – locally via Modbus TCP, transparently and without the cloud.
Everything at a glance
The integration turns Modbus registers into clear Home Assistant entities tailored to the detected system.
Flow, return, hot water, outside temperature, pressure, flow rate, runtimes and heat quantities in one clear interface.
Set target values, operating modes and enables directly through number, select and switch entities.
Connect PV surplus, heating circuits A–G, up to ten zones and hot water intelligently with your home.
The optional KNX bridge provides the same communication objects as IDM's ETS example project – the same object numbers, data point types and write directions. This removes the need for the paid Weinzierl BAOS gateway.
No separate KNX stack: the bridge uses Home Assistant's KNX integration, including tunneling, routing and KNX Secure.
Outside temperatureDPT 9.001 · read-only
8/0/1System operating modeDPT 5.010 · writable
8/0/4Hot water targetDPT 9.001 · writable
8/0/21Heating circuit A operating modeDPT 7.001 · writable
8/0/222100% localNo cloud required
7 heating circuitsIndividually configurable
Zone modulesUp to 8 rooms per zone
Auto-RecoveryResilient to connection errors
Since 0.18.0
Understand energy use, plan comfort and spot unusual behavior. Choose Smart for additional analysis or Vanilla for core features.
Electrical energy, heat and COP as lifetime, daily and monthly values. Add estimated costs, CO₂ and PV use, retained across restarts.
Optionally charge hot water using PV surplus or set room targets in up to 16 daily windows. Both are off by default and require confirmation of exclusive control.
Eight diagnostic checks, heating and weather hints, and a diagnostic export for your installer. Recommendations do not change setpoints or replace fault diagnosis.
Standard, Advanced and Expert offer the same features at different levels of detail. Choose the categories you need and retain the other settings.
Daily, weekly, health and efficiency reports generated directly from measured facts — with no model call by default. A dedicated AI device, report buttons, dashboard export, a restart-safe schedule and local learning with live progress.
Every feature in this section has been part of the integration since v0.18.0. Write-enabled features stay off by default and require confirmation; the AI plant adviser is experimental and read-only.
See it in action
Every value appears where you expect it – in devices, dashboards, automations and diagnostics.
Modbus TCPConnection stable · 2 ms
Port 502IDM Heatpump APILibrary loaded successfully
v2.6.0EntitiesAll available registers read
Model dependentInternal messagesNo active errors
ReadyInteractive preview with sample data – actual entities depend on the heat pump model and configuration.
Ready in minutes
Add the integration directly through HACS. Then all you need is the IP address of your IDM Navigator controller.
Add repositoryAdd IDM Heatpump as a custom HACS repository.
Enable Modbus TCPEnable it in the Navigator building management settings.
Configure integrationEnter the IP address, port 502 and usually slave ID 1.
Home Assistant 2026.8.1+ · HACS · IDM Navigator 2.0 / 10 / Pro
https://github.com/Xerolux/idm-heatpump-hass