--- title: "Kronoterm" description: "Kronoterm is a Marketplace integration for Home Assistant. It has 55 installs sharing analytics, works locally and was last updated October 26, 2026." canonical: "https://vulpo.app/integrations/marketplace/favio25-kronoterm-homeassistant" url: "https://vulpo.app/integrations/marketplace/favio25-kronoterm-homeassistant.md" last-updated: "2026-10-27" version: "1.4" --- # Kronoterm > Kronoterm is a Marketplace integration for Home Assistant. It has 55 installs sharing analytics, works locally and was last updated October 26, 2026. Kronoterm is an integration for monitoring and controlling Kronoterm heat pump systems from Home Assistant. It connects through the Kronoterm cloud with mobile app credentials, or locally over Modbus TCP through an RS485-to-Ethernet adapter, or over a direct Modbus RTU serial link. It adds climate controls for hot water, heating loops, reservoir and pool, plus sensors, binary sensors, switches, numbers, selects and a button to reimport energy statistics. The switches cover items such as heat pump on and off, holiday mode, and the reserve source. The controller type, TT3000 or TT4000, is detected automatically, and the update interval can be changed in the options. Energy data works with the Home Assistant energy dashboard, and a redacted diagnostics file can be downloaded for bug reports. Setup is done in the UI. Automatic summary of the README and code of Favio25/Kronoterm-homeassistant. Something wrong, or are you the maintainer and want your own text here? [Get in touch](https://vulpo.app/contact) [Open in My Home Assistant](https://my.home-assistant.io/redirect/hacs_repository/?owner=Favio25&repository=Kronoterm-homeassistant&category=integration) On Home Assistant 2026.11 or newer? [Open it in the Marketplace](https://my.home-assistant.io/redirect/marketplace_repository/?owner=Favio25&repository=Kronoterm-homeassistant&category=integration) ## 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. ## Setting it up Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services. ### Connection Type - **Connection Type** Also asked when changing the connection. ### Cloud API Configuration - **Username** - **Password** - **Heat Pump Type**: Select Heat Pump Type Also asked when changing the connection. ### Modbus Transport - **Transport** ### Modbus TCP Configuration - **IP Address**: IP address of your Kronoterm heat pump on local network - **Port**: Modbus TCP port (default: 502) - **Modbus Unit ID**: Modbus slave address (default: 20) - **Timeout**: Connection timeout in seconds ### Modbus RTU Configuration - **Serial Port** - **Baud Rate** - **Data Bits** - **Parity** - **Stop Bits** - **Timeout** - **Modbus Unit ID** ### Reconnect Kronoterm Cloud - **Username** - **Password** ### After setup - **Username** - **Password**: Leave blank to keep the current Cloud password. - **Scan interval (seconds)** - **Thermal energy multiplier**: Choose auto to detect using SCOP, or force 0.1 or 1.0. Changing this can affect recorded energy statistics. Texts from the code of [Favio25/Kronoterm-homeassistant](https://github.com/Favio25/Kronoterm-homeassistant). ## Entities - **Binary sensors**: Main Circulation Pump, Circulation Loop 1, Circulation Loop 2, Circulation Loop 3, Circulation Loop 4, Circulation Pump, DHW Circulation Pump, Circulation DHW, Defrost Status, Reserve Source Status, Alternative Source Status, and 6 more - **Buttons**: Reimport Energy Statistics, Acknowledge alarm - **Climate**: DHW Thermostat, Loop 1 Thermostat, Loop 2 Thermostat, Loop 3 Thermostat, Loop 4 Thermostat, Reservoir Thermostat, Pool Thermostat - **Numbers**: Loop 1 Eco Offset, Loop 1 Comfort Offset, Loop 2 Eco Offset, Loop 2 Comfort Offset, Loop 3 Eco Offset, Loop 3 Comfort Offset, Loop 4 Eco Offset, Loop 4 Comfort Offset, DHW Eco Offset, DHW Comfort Offset, Heat Pump Eco Offset, and 5 more - **Selects**: Loop 1 Operation Mode, Loop 2 Operation Mode, Loop 3 Operation Mode, Loop 4 Operation Mode, DHW Operation Mode, Operational Mode, System Regime - **Sensors**: DHW Current Temperature, DHW Target Temperature, DHW Boiler Temperature, External Source Temperature, Inlet Air Temperature, Compressor Status, Error Status, Warning Status, Additional Source Status, Reserve Source Status, Pool Temperature, and 153 more - **Switches**: Heat Pump ON/OFF, DHW Circulation, Fast Water Heating, Antilegionella, Luxury Shower, Reserve Source, Holiday Mode, Loop 1 Use JSON Temp Source, Enable Reservoir Climate Entity, Reserve Source (Backup Heater), Additional Source Control ## Troubleshooting - **Diagnostics**: Downloads a diagnostics file to attach to a bug report. ## From the README > A comprehensive Home Assistant integration for Kronoterm heat pumps, supporting both Cloud API and local Modbus TCP connections. > > - Cloud API: Internet-based connection using Kronoterm mobile app credentials > - Modbus TCP: Local network connection via RS485-to-Ethernet adapter > - Modbus RTU: Direct serial connection via RS485 (USB or GPIO) > - Seamless switching: Reconfigure between modes without losing entity history From the README of [Favio25/Kronoterm-homeassistant](https://github.com/Favio25/Kronoterm-homeassistant#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened. ## At a glance - Kind: Marketplace integration - Category: [Climate](https://vulpo.app/integrations/category/climate.md) - Number: 55 installs sharing analytics; 19 GitHub stars - Connection: Works locally - Upkeep: Updated in the last 6 months - Needs: Needs the Marketplace (HACS on 2026.10 and older) - Latest version: v1.7.3, last updated October 26, 2026 - Domain: `kronoterm` - Source: - Issues: - Screenshot: https://vulpo.app/integrations-img/8219265f8786996d.webp (from Favio25/Kronoterm-homeassistant's README) - Screenshot: https://vulpo.app/integrations-img/e409f8ef5920680c.webp (from Favio25/Kronoterm-homeassistant's README) - Screenshot: https://vulpo.app/integrations-img/481bc83cc1f91324.webp (from Favio25/Kronoterm-homeassistant's README) In Vulpo: Quick Toggle card, Climate card, Button card, Select card, Apple Watch, Control Center, 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 2026-10-27. Source: https://vulpo.app/integrations/marketplace/favio25-kronoterm-homeassistant --- - HTML version of this page: https://vulpo.app/integrations/marketplace/favio25-kronoterm-homeassistant - Site index for agents: https://vulpo.app/llms.txt - Everything in one document: https://vulpo.app/llms-full.txt - All pages: https://vulpo.app/sitemap.xml