Waterkotte Heatpump [+2020] for Home Assistant (Marketplace integration)

Installs: 126 sharing analytics
GitHub stars: 30
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: 2026.10.7, October 25, 2026
Category: Energy, Meters and monitoring
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: waterkotte_heatpump
Source: github.com/marq24/ha-waterkotte
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 marq24/ha-waterkotte.

About

Waterkotte Heatpump [+2020] is a HACS integration that reads and controls Waterkotte heat pumps over their local web interface. It talks to the built-in web server of the unit, so the data and settings match what the unit's own web frontend offers. It adds binary sensors, numbers, selects, sensors and switches, covering areas such as heating, cooling, hot water, pool, mixers and yearly performance figures. Operation modes and temperature setpoints can be adjusted, and weekly schedule switches and a holiday mode are included. Setup runs in the UI and asks for the interface type, either EcoTouch or EasyCon mode, depending on whether the web login needs credentials. Most sensors are disabled by default, and a diagnostics download is available for bug reports.

Automatic summary of the README and code of marq24/ha-waterkotte. 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

Switches
Sensors

Setting it up

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

Connect

Watterkotte Interface-TypIf you need to provide a username & password to log in to the Waterkotte web interface, please select the interface type: EcoTouch Mode, else the EasyCon Mode.

User ecotouch

Host or IP
Username
Password
Polling Interval in seconds
Number of tags to fetch in a single request (max. 75)
Add the optional Schedule-Entities (650+)
Do you want to configure multiple Waterkotte Systems in your HA installation?

User easycon

Host or IP
Username (OPTIONAL)Only if your Watterkotte use BasicAuth to access
Password (OPTIONAL)Only if your Watterkotte use BasicAuth to access
Polling Interval in seconds
Number of tags to fetch in a single request (max. 75)
Do you want to configure multiple Waterkotte Systems in your HA installation?

Features

for an 'air source heat pump outdoor unit'
to adjust 'heating curves'
to adjust the 'Water disinfection'
for a 'pool' unit' (incl. heating curve)

After setup

Username
Password
Polling Interval in seconds
Number of tags to fetch in a single request (max. 75)
Add the optional Schedule-Entities (650+)

Texts from the code of marq24/ha-waterkotte.

Entities

Binary sensorsSource pump, Heat pump, EVD, Compressor, Compressor II, Electrical heater, Notifications, Cooling, Hot water, Pool, and 28 more
code_genSchedule, Heating, Cooling, Hot Water, Pool, Mixer 1, Mixer 2, Mixer 3, Circulation pump buffer tank, Solar Control, and 11 more
NumbersT setpoint, T Cooling, T out begin, Flow temperature limitation, Heating temperature, Temperature adjustment, Hysteresis setpoint, T heating limit, T heating limit target, T norm outdoor, and 34 more
SelectsHeating Control, Pool Control, Vent Operation mode (I4582), Vent Operation mode (alternative), Operation mode cooling, Operation mode heating, Operation mode PV, Operation mode hot water, Operation mode pool, Operation mode external heater, and 12 more
SensorsElectrical year performance, Compressor year performance, Heat source pump year performance, Electrical heater year performance, Thermal year performance, Heating year performance, Hot water year performance, Pool year performance, Cooling year performance, Outdoor temperature, and 87 more
SwitchesHoliday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday, Continuous operation heating pump during heating period, Continuous operation heating pump during cooling period, and 5 more

Troubleshooting

DiagnosticsDownloads a diagnostics file to attach to a bug report.

From the README

This Home Assistant Integration is providing information from the German heatpump pioneer Waterkotte. In addition and where possible functions are provided to control the system.
Please note, that this integration is not official and not supported by the Waterkotte development team. I am not affiliated with Waterkotte in any way.

From the README of marq24/ha-waterkotte, MIT License. Shortened.