What We Build

KNX from the protocol stack up

We make KNX gateways for HVAC integration, and we make the KNX protocol stack that runs inside them. Both are our own work, and both are registered with KNX Association.

Our own KNX stack

HStack is a KNX TP-1 System B stack we wrote from the bit timing up. It is registered as 867/23232/26 and licensed to other manufacturers as C source code.

Gateways for HVAC

Handles mapping between infrared, Modbus, BACnet and other HVAC protocols and the KNX standard, with ETS integration and diagnostics for commissioning.

Built and tested in house

Hardware, firmware and production test are all ours, which is what makes field stability something we can stand behind.

Certification

Global KNX Member

An Official Mark of International Compliance

Horizentis is a registered member of the KNX Association, the international body behind the worldwide standard for smart home and building automation. Every solution we deliver is engineered, tested and documented in accordance with KNX requirements. This is a formal assurance that you are working with a manufacturer aligned to an internationally recognised framework.

View Certificate
KNX Member certificate View Certificate
Own Technology

We wrote our own KNX stack

Registered with KNX Association as 867/23232/26

Every layer of HStack is Horizentis code, from the bit timing on the twisted pair up to the application layer. We licence it to other manufacturers as C source, and it is the foundation our own products are built on.

Explore HStack
HStack 867/23232/26 KNX TP-1 · System B · 07B0h

Discover cutting-edge technology designed to simplify your world.

From intelligent devices to seamless integration - experience the future today.

Compatibility Checker
Applications

Where It's Used

Our KNX gateways are designed for real-world integration across various HVAC systems and building types.

Commercial Buildings

Offices, malls, and hotels where centralized HVAC control is essential.

Smart Homes

Ideal for integrating residential heating and cooling with KNX-based systems.

Protocol Compatibility

Supports Modbus RTU/TCP, BACnet MS/TP, and custom manufacturer-specific formats.

Smarter Infrastructure. Real Impact.

From the KNX protocol stack to the finished gateway

We write the KNX protocol stack ourselves and build the hardware around it, so the path from HVAC equipment to a KNX installation is ours end to end. The focus is on stability, protocol accuracy, and ease of deployment.

Engineering

Built for Integration

Our gateway bridges the gap between HVAC hardware and KNX automation systems. With built-in support for major HVAC protocols, installation and configuration are straightforward - even in complex setups.

  • Designed with a space-saving compact form
  • ETS configuration support
Installer commissioning a wall-mounted indoor unit in a home
Compatibility

Works with the systems you already install

Eight HVAC families have a dedicated bus gateway, and the Universal Infrared gateway reaches the rest.

  • Daikin
  • Mitsubishi Electric
  • Mitsubishi Heavy Industries
  • LG
  • Samsung
  • Toshiba
  • Midea
  • Gree
Over 70 more brands over infrared

Controlled by the Universal Infrared gateway, which sends the manufacturer's own handset protocol.

  • AEG
  • Airton
  • Airwell
  • Alaska
  • Amana
  • Amcor
  • Argo
  • Beko
  • Bosch
  • Carrier
  • Centek
  • Comfee
  • Cooper
  • Corona
  • Daewoo
  • Daichi
  • Daikin
  • Danby
  • Delonghi
  • Duux
  • Ecoclim
  • Ekokai
  • Electra
  • Electrolux
  • Frigidaire
  • Fujitsu
  • General Electric
  • Goodweather
  • Gree
  • Green
  • Haier
  • Hisense
  • Hitachi
  • Kastron
  • Kaysun
  • Kelon
  • Kelvinator
  • Keystone
  • Leberg
  • Lennox
  • LG
  • Mabe
  • Maxell
  • Midea
  • Mirage
  • Mitsubishi Electric
  • Mitsubishi Heavy Industries
  • Mrcool
  • Neoclima
  • Ogeneral
  • Panasonic
  • Pioneer System
  • Rhoss
  • RusClimate
  • Samsung
  • Sanyo
  • Sharp
  • Soleus Air
  • Subtropic
  • TCL
  • Technibel
  • Teknopoint
  • Tokio
  • Toshiba
  • Transcold
  • Tronitechnik
  • Trotec
  • Truma
  • Ultimate
  • Vaillant
  • Vestel
  • Voltas
  • Whirlpool
  • York
Universal Infrared gateway
Check your model

Our Solutions

Empowering smart homes with reliable, scalable, and secure KNX gateways.

HVAC Integration

Seamlessly connect and control your heating, ventilation, and air conditioning systems with KNX-certified gateways..

Energy Efficiency

Optimize energy consumption and reduce costs with intelligent automation and real-time monitoring.

Secure & Reliable

Built with industry-leading security standards and robust hardware for peace of mind and long-term reliability.

Let's find the right gateway for your project

Tell us the equipment you are integrating, or check compatibility yourself in a few seconds.

Compatibility Checker Get In Touch