Zehnder ComfoConnect PRO for Home Assistant (Marketplace integration)

Installs: 117 sharing analytics
GitHub stars: 16
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: 1.1.9, September 22, 2026
Category: Climate, Fans and ventilation
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: ha_comfoconnectpro
Source: github.com/hstrohmaier/ha_comfoconnectpro
Issues: Report an issue

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

Screenshots From the README of hstrohmaier/ha_comfoconnectpro.

About

Zehnder ComfoConnect PRO is a custom integration that connects Home Assistant to a Zehnder ComfoConnect PRO ventilation interface. It communicates locally with the interface over Modbus TCP, which has to be enabled in the interface's web page first. It adds a climate entity, sensors for air temperatures, supply fan volume, connection state and error codes, and binary sensors for error, standby, ComfoHood and filter replacement. Controls include switches for boost, auto mode, away function, ComfoCool and acknowledging errors, plus selects for ventilation preset and temperature profile. Numbers cover the external setpoint and boost time. Setup is done in the UI with a name, host, port, host ID and scan interval, and it needs the Marketplace.

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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

Climate
Switches
Sensors

Setting it up

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

Connect

Name
Host
Port
Host ID
Scan interval

After setup

Host
Port
Host ID
Scan interval

Texts from the code of hstrohmaier/ha_comfoconnectpro.

Entities

Binary sensorsError active, Standby, ComfoHood, Replace filter
ClimateClimate
NumbersExternal setpoint, Boost time
SelectsVentilation preset, Temperature profile, Temperature profile mode
SensorsConnection state, Error 1, Error 2, Error 3, Error 4, Error 5, Supply fan volume, Room air temperature, Extract air temperature, Exhaust air temperature, Outdoor air temperature, Supply air temperature, and 24 more
SwitchesAcknowledge errors, Auto mode, Boost, Away function, ComfoCool